CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT LOCATION.--Lat 4132'30", long 7233'13", Middlesex County, Hydrologic Unit 01080205, on pier of United Technologies Corporation (formerly Connecticut Advanced Nuclear Engineering Laboratory, CANEL), 0.8 mi south of Middle Haddam, 7.6 mi upstream from Salmon River, and 6.1 mi south of Middletown. DRAINAGE AREA.--10,897 mi2 rev. PERIOD OF RECORD.--Water year 1967 to current year. PERIOD OF DAILY RECORD.-- SPECIFIC CONDUCTANCE: October 1967 to September 1970, October 1973 to June 1976, June 1978 to current year. pH: October 1967 to September 1970, October 1973 to June 1976, June 1978 to current year. WATER TEMPERATURES: October 1967 to September 1970, October 1973 to June 1976, June 1978 to current year. DISSOLVED OXYGEN: October 1967 to September 1970, October 1973 to June 1976, June 1978 to current year. INSTRUMENTATION.--Water-quality monitor October 1967 to current year. REMARKS.--USGS water-quality monitoring system installed June 1978. Interruptions of the record due to malfunctions of the instrument. The instantaneous record values will not necessarily fall within the corresponding daily range of the continuous records due to the depth and location of the probes used for the monitoring system. Stream tidal affected. Extremes for period of daily record and current year are only for those values reported. EXTREMES FOR PERIOD OF DAILY RECORD.-- SPECIFIC CONDUCTANCE: Maximum, 483 microsiemens Aug. 18, 1975; minimum, 33 microsiemens March 23, 1980. pH: Maximum, 9.7 units July 3, 1975; minimum, 4.9 units Apr. 23, 1976. WATER TEMPERATURES: Maximum, 33.0C July 12, 1970; minimum, 0.0C on many days during winter periods. DISSOLVED OXYGEN: Maximum, 19.2 mg/L Feb. 17, 1980; minimum 0.6 mg/L Aug. 11, 1970. EXTREMES FOR CURRENT YEAR:-- SPECIFIC CONDUCTANCE: Maximum, 232 microsiemens Sept. 26; minimum, 79 microsiemens Oct. 23, Dec. 6, May 6. pH: Maximum, 9.4 units July 1; minimum 6.9 units Jan. 31, Sept. 26. WATER TEMPERATURES: Maximum, 28.5C July 17, 18, 19; minimum, 0.0C on numerous days during winter periods. DISSOLVED OXYGEN: Maximum, 16.2 mg/L Jan. 31; minimum, 5.3 mg/L Aug. 18, 19. WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 PH OXYGEN, COLI- ENTERO- SPE- WATER DIS- FORM, COCCI HARD- CIFIC WHOLE SOLVED FECAL, ME,MF NESS CON- FIELD TEMPER- TEMPER- TUR- OXYGEN, (PER- 0.45 WATER TOTAL DUCT- (STAND- ATURE ATURE BID- DIS- CENT UM-MF TOTAL (MG/L DATE TIME ANCE ARD AIR WATER ITY SOLVED SATUR- (COLS./ (COL / AS (US/CM) UNITS) (DEG C) (DEG C) (NTU) (MG/L) ATION) 100 ML) 100 ML) CACO3) (00095) (00400) (00020) (00010) (00076) (00300) (00301) (31616) (31649) (00900) OCT 17... 1100 149 7.4 22.0 12.5 1.8 10.0 95 6200 232 44 DEC 13... 1145 118 7.2 9.0 3.5 3.0 13.5 101 3800 580 30 FEB 11... 1145 132 7.3 1.5 2.5 2.6 13.6 99 600 110 35 APR 14... 1045 96 7.3 10.0 6.0 6.4 12.0 97 420 130 25 JUN 09... 1030 127 7.5 24.0 19.0 3.7 8.5 91 K14 K13 38 AUG 08... 1045 154 8.2 22.5 25.0 6.2 8.4 101 20 K5 42 CAR- BICAR- ALKA- MAGNE- POTAS- BONATE BONATE LINITY CHLO- FLUO- CALCIUM SIUM, SODIUM, SIUM, WATER WATER WAT DIS SULFATE RIDE, RIDE, DIS- DIS- DIS- DIS- DIS IT DIS IT TOT IT DIS- DIS- DIS- SOLVED SOLVED SOLVED SOLVED FIELD FIELD FIELD SOLVED SOLVED SOLVED DATE (MG/L (MG/L (MG/L (MG/L MG/L AS MG/L AS MG/L AS (MG/L (MG/L (MG/L AS CA) AS MG) AS NA) AS K) CO3 HCO3 CACO3 AS SO4) AS CL) AS F) (00915) (00925) (00930) (00935) (00452) (00453) (39086) (00945) (00940) (00950) OCT 17... 14 2.3 10 1.7 0 39 32 10 16 <.10 DEC 13... 9.1 1.8 8.2 1.2 0 27 22 8.9 13 <.10 FEB 11... 11 1.9 12 1.2 0 28 23 9.7 17 <.10 APR 14... 8.1 1.3 6.2 .92 0 21 17 7.3 10 <.10 JUN 09... 12 1.8 8.3 1.1 0 32 26 8.7 13 <.10 AUG 08... 13 2.2 11 1.7 0 39 32 11 16 .10 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 SOLIDS, NITRO- NITRO- NITRO- NITRO- NITRO- SILICA, RESIDUE SOLIDS, GEN, GEN, GEN, NITRO- GEN,AM- GEN,AM- DIS- AT 180 RESIDUE NITRITE NO2+NO3 AMMONIA GEN, MONIA + MONIA + NITRO- SOLVED DEG. C AT 105 DIS- DIS- DIS- ORGANIC ORGANIC ORGANIC GEN, (MG/L DIS- DEG. C, SOLVED SOLVED SOLVED TOTAL TOTAL DIS. TOTAL DATE AS SOLVED TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L SIO2) (MG/L) (MG/L) AS N) AS N) AS N) AS N) AS N) AS N) AS N) (00955) (70300) (00500) (00613) (00631) (00608) (00605) (00625) (00623) (00600) OCT 17... 6.3 88 98 .040 .500 .190 .21 .40 .40 .90 DEC 13... 6.7 70 78 .020 .420 .130 .17 .30 .30 .72 FEB 11... 7.0 107 88 .030 .600 .180 .12 .30 .30 .90 APR 14... 5.3 63 60 .010 .370 .070 .13 .20 .20 .57 JUN 09... 5.0 81 102 .017 .441 .029 .24 .27 <.20 .71 AUG 08... 3.4 97 101 .023 .519 .029 .55 .58 .22 1.1 PHOS- PHOS- PHORUS ALUM- ANTI- BERYL- CHRO- PHOS- PHORUS ORTHO, INUM, MONY, BARIUM, LIUM, CADMIUM MIUM, COBALT, PHORUS DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- TOTAL SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED DATE (MG/L (MG/L (MG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS P) AS P) AS P) AS AL) AS SB) AS BA) AS BE) AS CD) AS CR) AS CO) (00665) (00666) (00671) (01106) (01095) (01005) (01010) (01025) (01030) (01035) OCT 17... .060 .050 .050 13 <1.0 18 <1.0 <1.0 <1.0 <1.0 DEC 13... .030 .040 .030 32 <1.0 14 <1.0 <1.0 <1.0 <1.0 FEB 11... .030 .020 .020 25 <1.0 16 <1.0 <1.0 <1.0 <1.0 APR 14... .030 .010 .010 26 <1.0 11 <1.0 <1.0 <1.0 <1.0 JUN 09... .021 <.010 .017 15 <1.0 15 <1.0 <1.0 <1.0 <1.0 AUG 08... .102 .055 .050 10 <1.0 20 <1.0 <1.0 <1.0 <1.0 MANGA- MOLYB- URANIUM COPPER, IRON, LEAD, NESE, DENUM, NICKEL, SILVER, ZINC, NATURAL CARBON, DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- ORGANIC SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED TOTAL DATE (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (MG/L AS CU) AS FE) AS PB) AS MN) AS MO) AS NI) AS AG) AS ZN) AS U) AS C) (01040) (01046) (01049) (01056) (01060) (01065) (01075) (01090) (22703) (00680) OCT 17... 2.0 70 <1.0 20 <1.0 1.0 <1.0 2.0 <1.0 4.1 DEC 13... 2.0 88 <1.0 17 <1.0 1.0 <1.0 4.0 <1.0 3.9 FEB 11... <1.0 110 <1.0 32 <1.0 <1.0 <1.0 3.0 <1.0 3.3 APR 14... 1.2 61 <1.0 9.4 <1.0 <1.0 <1.0 1.6 <1.0 3.2 JUN 09... 1.8 70 <1.0 6.3 <1.0 1.1 <1.0 1.9 <1.0 3.7 AUG 08... 2.6 25 <1.0 <1.0 <1.0 <1.0 <1.0 1.6 <1.0 5.6 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT SPECIFIC CONDUCTANCE, (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN OCTOBER NOVEMBER DECEMBER JANUARY 1 151 146 148 115 106 109 116 108 112 94 88 90 2 --- --- --- 116 112 114 117 110 114 103 90 97 3 --- --- --- 119 113 115 110 89 99 108 96 102 4 --- --- --- 117 113 115 89 85 87 114 103 109 5 --- --- --- 121 115 118 87 80 84 112 101 105 6 --- --- --- 122 119 120 82 79 81 111 99 103 7 --- --- --- 122 118 120 93 80 86 114 106 109 8 --- --- --- 124 120 121 100 91 95 113 107 110 9 --- --- --- 127 120 124 112 98 104 110 106 107 10 --- --- --- 126 104 115 112 97 103 --- --- --- 11 --- --- --- 104 88 95 103 95 99 --- --- --- 12 --- --- --- 95 90 93 107 100 104 --- --- --- 13 --- --- --- 100 94 96 114 106 110 --- --- --- 14 --- --- --- 101 94 98 117 103 108 --- --- --- 15 --- --- --- 103 96 99 108 100 104 --- --- --- 16 --- --- --- 99 93 96 106 100 103 136 120 123 17 146 141 142 98 92 95 109 101 105 142 126 136 18 149 143 146 102 93 98 108 101 104 140 128 134 19 147 143 145 112 100 104 101 94 97 130 126 128 20 145 139 141 113 105 108 94 91 92 136 126 132 21 141 115 130 111 106 109 93 90 91 136 130 132 22 116 93 109 121 108 114 97 91 94 135 125 130 23 113 79 98 117 107 112 99 93 95 134 124 128 24 113 96 105 121 113 117 100 94 97 134 116 127 25 97 90 94 122 113 117 104 95 100 136 126 129 26 99 90 95 123 113 116 101 87 92 167 135 143 27 101 93 97 127 117 119 92 86 88 169 144 158 28 100 92 96 120 111 116 92 88 90 153 140 146 29 99 93 96 112 108 110 95 89 92 175 151 167 30 100 95 97 111 106 108 95 89 92 194 161 181 31 107 98 102 --- --- --- 94 89 91 169 146 154 MONTH 151 79 115 127 88 110 117 79 97 194 88 127 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN FEBRUARY MARCH APRIL MAY 1 154 149 151 119 103 111 111 105 108 86 81 82 2 163 147 154 106 102 103 119 105 113 93 85 90 3 --- --- --- 115 105 110 114 108 112 91 86 88 4 --- --- --- 112 109 111 114 106 110 91 86 88 5 --- --- --- 115 109 111 110 104 106 87 81 84 6 --- --- --- 123 109 114 105 100 101 84 79 80 7 --- --- --- 123 109 115 101 96 98 90 82 87 8 --- --- --- 111 105 107 99 91 93 90 83 86 9 --- --- --- 111 103 107 92 85 89 89 82 84 10 --- --- --- 114 106 108 85 82 83 92 85 89 11 --- --- --- 127 109 118 90 84 86 99 90 94 12 --- --- --- 142 118 129 96 90 92 100 93 96 13 --- --- --- 123 116 120 105 96 100 99 93 96 14 --- --- --- 121 117 119 103 92 97 104 95 100 15 --- --- --- 145 117 128 94 90 92 107 101 103 16 --- --- --- 159 135 147 99 90 95 108 102 105 17 --- --- --- 158 145 153 99 94 97 109 103 106 18 --- --- --- 145 137 140 104 96 100 111 105 108 19 174 167 171 138 130 134 104 97 100 112 108 110 20 184 170 178 133 128 131 97 88 92 122 109 112 21 173 161 167 134 129 131 90 86 89 115 100 106 22 162 147 154 144 131 136 86 82 84 103 98 100 23 148 132 142 136 129 131 83 80 82 105 98 100 24 132 120 124 134 130 132 87 81 83 104 99 102 25 125 120 122 137 133 135 91 84 87 105 101 103 26 125 117 120 140 135 137 91 84 88 111 102 106 27 125 117 120 141 134 138 93 86 90 108 104 106 28 124 117 120 135 121 127 93 87 91 111 104 107 29 --- --- --- 122 111 116 97 89 93 116 108 111 30 --- --- --- 118 111 114 89 82 85 115 112 114 31 --- --- --- 115 107 110 --- --- --- 117 113 115 MONTH --- --- --- 159 102 123 119 80 95 122 79 99 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT SPECIFIC CONDUCTANCE, (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997--Continued DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN JUNE JULY AUGUST SEPTEMBER 1 121 117 119 158 144 147 174 153 164 158 138 146 2 124 119 122 155 146 150 179 162 172 163 139 154 3 126 122 124 156 150 152 182 168 173 161 156 157 4 125 119 122 159 150 152 175 154 165 160 154 156 5 121 116 118 158 149 152 174 155 162 162 155 157 6 120 116 118 157 142 149 171 156 162 164 151 156 7 125 119 122 155 139 147 167 154 157 164 154 158 8 128 123 125 147 136 139 165 156 158 171 156 160 9 131 126 129 154 138 143 169 157 163 173 161 166 10 137 130 133 156 140 148 170 158 162 184 163 172 11 141 137 139 155 134 141 174 163 167 183 165 174 12 152 139 140 149 128 136 173 163 166 193 170 183 13 144 138 140 137 127 130 174 164 166 195 175 184 14 148 139 142 137 128 131 176 165 170 212 179 193 15 149 143 144 136 128 131 171 164 167 212 174 190 16 149 143 146 145 129 134 170 159 163 200 173 186 17 152 145 146 147 133 140 164 148 157 201 169 181 18 154 146 151 142 127 132 159 144 148 190 164 176 19 155 145 148 137 126 129 158 145 150 193 152 163 20 162 145 150 138 129 133 152 146 149 168 153 156 21 164 149 153 146 132 134 163 146 151 174 157 164 22 163 144 153 138 132 134 163 152 156 192 166 176 23 152 142 144 142 135 138 159 148 153 197 171 181 24 161 142 148 143 136 138 159 146 151 214 177 187 25 175 147 155 140 133 136 153 141 146 213 178 192 26 171 146 154 143 132 135 147 136 142 232 186 202 27 171 147 153 146 136 140 152 137 144 219 191 205 28 161 144 149 150 138 144 152 136 144 223 185 202 29 154 144 147 152 141 146 153 139 145 213 181 196 30 156 144 147 153 144 148 154 140 146 221 186 207 31 --- --- --- 168 146 155 160 142 149 --- --- --- MONTH 175 116 139 168 126 141 182 136 157 232 138 176 YEAR 232 79 126 PH, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN OCTOBER NOVEMBER DECEMBER JANUARY 1 7.1 7.0 7.0 --- --- --- --- --- --- --- --- --- 2 --- --- --- --- --- --- --- --- --- --- --- --- 3 --- --- --- --- --- --- --- --- --- --- --- --- 4 --- --- --- --- --- --- --- --- --- --- --- --- 5 --- --- --- --- --- --- --- --- --- --- --- --- 6 --- --- --- --- --- --- --- --- --- --- --- --- 7 --- --- --- --- --- --- --- --- --- --- --- --- 8 --- --- --- --- --- --- --- --- --- 7.3 7.2 7.3 9 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 10 --- --- --- --- --- --- --- --- --- --- --- --- 11 --- --- --- --- --- --- --- --- --- --- --- --- 12 --- --- --- --- --- --- --- --- --- --- --- --- 13 --- --- --- --- --- --- --- --- --- --- --- --- 14 --- --- --- --- --- --- --- --- --- --- --- --- 15 --- --- --- --- --- --- --- --- --- --- --- --- 16 --- --- --- --- --- --- --- --- --- 7.4 7.3 7.3 17 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 18 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 19 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 20 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 21 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 22 --- --- --- --- --- --- --- --- --- 7.3 7.3 7.3 23 --- --- --- --- --- --- --- --- --- 7.3 7.1 7.2 24 --- --- --- --- --- --- --- --- --- 7.2 7.1 7.2 25 --- --- --- --- --- --- --- --- --- 7.2 7.1 7.2 26 --- --- --- --- --- --- --- --- --- 7.2 7.2 7.2 27 --- --- --- --- --- --- --- --- --- 7.2 7.1 7.2 28 --- --- --- --- --- --- --- --- --- 7.2 7.1 7.2 29 --- --- --- --- --- --- --- --- --- 7.2 7.1 7.2 30 --- --- --- --- --- --- --- --- --- 7.2 7.1 7.2 31 --- --- --- --- --- --- --- --- --- 7.2 6.9 7.1 MONTH --- --- --- --- --- --- --- --- --- 7.4 6.9 7.2 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT PH, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997--Continued DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN FEBRUARY MARCH APRIL MAY 1 7.1 7.1 7.1 7.2 7.2 7.2 7.4 7.3 7.3 7.3 7.3 7.3 2 7.1 7.1 7.1 7.2 7.2 7.2 7.4 7.3 7.3 7.4 7.3 7.3 3 --- --- --- 7.3 7.2 7.3 7.4 7.3 7.3 7.3 7.3 7.3 4 --- --- --- 7.3 7.3 7.3 7.4 7.3 7.3 7.3 7.2 7.3 5 --- --- --- 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.3 6 --- --- --- 7.4 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7 --- --- --- 7.4 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.3 8 --- --- --- 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.3 9 --- --- --- 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 10 --- --- --- 7.3 7.3 7.3 7.3 7.2 7.3 7.2 7.2 7.2 11 --- --- --- 7.3 7.3 7.3 7.3 7.2 7.3 7.3 7.2 7.2 12 --- --- --- 7.3 7.2 7.3 7.3 7.2 7.3 7.2 7.2 7.2 13 --- --- --- 7.4 7.3 7.3 7.3 7.2 7.3 7.2 7.2 7.2 14 --- --- --- 7.4 7.3 7.3 7.3 7.2 7.2 7.2 7.2 7.2 15 --- --- --- 7.4 7.3 7.3 7.3 7.2 7.3 7.3 7.2 7.2 16 --- --- --- 7.4 7.3 7.3 7.3 7.2 7.3 7.3 7.2 7.2 17 --- --- --- 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 18 --- --- --- 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 19 7.3 7.2 7.3 7.3 7.3 7.3 7.4 7.3 7.3 7.3 7.2 7.2 20 7.3 7.2 7.3 7.4 7.3 7.3 7.4 7.3 7.4 7.3 7.1 7.2 21 7.3 7.2 7.3 7.4 7.3 7.3 7.4 7.3 7.4 7.3 7.2 7.3 22 7.3 7.3 7.3 7.4 7.3 7.3 7.4 7.3 7.3 7.3 7.2 7.3 23 7.3 7.2 7.3 7.4 7.3 7.3 7.4 7.3 7.4 7.3 7.2 7.3 24 7.3 7.2 7.2 7.4 7.2 7.4 7.5 7.3 7.4 7.3 7.2 7.2 25 7.4 7.3 7.3 7.4 7.4 7.4 7.3 7.3 7.3 7.2 7.2 7.2 26 7.4 7.3 7.3 7.4 7.4 7.4 7.3 7.2 7.3 7.2 7.2 7.2 27 7.3 7.1 7.3 7.4 7.3 7.4 7.3 7.2 7.3 7.2 7.1 7.2 28 7.3 7.2 7.3 7.4 7.3 7.3 7.3 7.2 7.3 7.3 7.2 7.2 29 --- --- --- 7.4 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 30 --- --- --- 7.4 7.3 7.3 7.3 7.3 7.3 7.3 7.2 7.2 31 --- --- --- 7.4 7.3 7.3 --- --- --- 7.3 7.2 7.3 MONTH --- --- --- 7.4 7.2 7.3 7.5 7.2 7.3 7.4 7.1 7.2 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN JUNE JULY AUGUST SEPTEMBER 1 7.3 7.2 7.3 9.4 8.9 9.2 9.0 7.7 8.5 7.7 7.1 7.5 2 7.3 7.1 7.2 9.3 8.7 9.0 9.0 7.7 8.5 7.8 7.3 7.6 3 7.3 7.2 7.2 9.0 8.5 8.8 9.0 7.6 8.4 8.0 7.5 7.6 4 7.3 7.2 7.2 9.2 8.7 8.9 8.5 7.3 8.0 8.2 7.5 7.7 5 7.3 7.2 7.3 9.2 7.7 8.5 8.2 7.3 7.7 8.4 7.5 7.8 6 7.4 7.2 7.3 9.0 7.5 7.9 8.7 7.2 7.8 8.5 7.5 7.9 7 7.5 7.2 7.3 8.7 7.5 8.0 8.8 7.2 8.0 7.9 7.4 7.6 8 7.6 7.2 7.4 8.8 7.6 8.1 8.4 7.6 8.0 7.9 7.4 7.6 9 8.4 7.2 7.6 8.7 7.5 7.8 8.7 7.8 8.2 7.8 7.3 7.6 10 9.0 7.4 8.2 8.0 7.2 7.5 8.8 7.8 8.3 7.7 7.2 7.5 11 8.8 7.4 8.2 7.4 7.1 7.2 8.9 7.4 8.4 7.6 7.1 7.5 12 8.8 7.5 8.3 7.5 7.2 7.3 8.9 7.6 8.5 7.7 7.2 7.5 13 8.4 7.1 7.7 7.9 7.1 7.5 8.6 7.4 8.1 7.7 7.1 7.5 14 7.9 7.1 7.6 8.3 7.1 7.6 8.6 7.4 8.1 7.7 7.2 7.5 15 7.8 7.2 7.5 7.9 7.1 7.5 8.3 7.4 7.9 7.8 7.2 7.5 16 7.9 7.2 7.6 7.6 7.1 7.3 7.8 7.1 7.4 8.0 7.2 7.6 17 8.3 7.2 7.7 7.4 7.0 7.2 7.6 7.2 7.4 8.5 7.1 7.8 18 7.9 7.2 7.5 7.4 7.1 7.2 7.5 7.1 7.3 8.4 7.2 7.8 19 7.5 7.1 7.3 7.5 7.1 7.3 8.2 7.2 7.5 8.5 7.1 7.9 20 7.7 7.1 7.4 8.4 7.3 7.7 7.9 7.4 7.6 8.3 7.4 7.9 21 7.8 7.2 7.4 8.4 7.4 7.8 7.6 7.4 7.5 8.6 7.3 8.0 22 7.8 7.3 7.4 8.5 7.4 7.7 7.4 7.2 7.3 8.7 7.2 8.2 23 8.5 7.2 7.6 8.0 7.4 7.6 7.3 7.2 7.3 8.4 7.3 7.9 24 7.9 7.3 7.6 7.5 7.3 7.4 7.4 7.2 7.3 8.6 7.1 7.9 25 8.0 7.3 7.5 7.6 7.3 7.4 7.6 7.2 7.4 8.4 7.2 7.9 26 7.7 7.2 7.5 7.8 7.1 7.5 7.9 7.2 7.6 8.3 6.9 7.7 27 7.9 7.3 7.5 8.1 7.4 7.7 8.3 7.3 7.8 7.9 7.1 7.6 28 8.6 7.4 8.0 8.6 7.3 8.0 8.0 7.3 7.7 8.0 7.1 7.5 29 9.2 7.7 8.6 8.9 7.5 8.3 7.8 7.3 7.6 7.8 7.0 7.5 30 9.3 8.5 9.0 9.0 7.8 8.6 7.7 7.2 7.5 8.1 7.0 7.5 31 --- --- --- 9.0 7.9 8.6 7.5 7.2 7.4 --- --- --- MONTH 9.3 7.1 7.6 9.4 7.0 7.9 9.0 7.1 7.8 8.7 6.9 7.7 YEAR 9.4 6.9 7.5 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN OCTOBER NOVEMBER DECEMBER JANUARY 1 19.0 17.5 18.0 11.0 10.5 10.5 5.0 2.5 3.0 2.0 .5 1.0 2 --- --- --- 10.5 9.0 10.0 6.0 3.5 5.0 .5 .5 .5 3 --- --- --- 9.5 9.0 9.0 6.0 4.5 5.5 1.0 .5 1.0 4 --- --- --- 9.0 8.5 8.5 4.5 4.0 4.0 1.5 1.0 1.5 5 --- --- --- 12.0 8.0 8.5 4.0 4.0 4.0 2.0 1.5 2.0 6 --- --- --- 9.0 8.5 8.5 4.0 3.5 4.0 2.5 2.0 2.5 7 --- --- --- 10.0 8.5 9.0 3.5 3.0 3.5 2.5 2.0 2.0 8 --- --- --- 11.5 9.0 10.0 3.0 2.0 2.5 2.0 1.0 1.5 9 --- --- --- 12.5 10.5 11.5 2.5 2.0 2.5 1.5 .5 1.0 10 --- --- --- 12.5 11.0 12.0 2.5 2.0 2.5 --- --- --- 11 --- --- --- 11.0 9.5 10.5 2.5 2.5 2.5 --- --- --- 12 --- --- --- 9.5 9.0 9.5 3.0 2.5 3.0 --- --- --- 13 --- --- --- 9.0 7.5 8.5 3.5 3.0 3.5 --- --- --- 14 --- --- --- 7.5 7.0 7.5 3.5 3.5 3.5 --- --- --- 15 --- --- --- 7.5 6.0 6.5 3.5 3.5 3.5 --- --- --- 16 --- --- --- 6.0 5.5 5.5 3.5 3.5 3.5 1.5 .5 .5 17 15.5 13.0 13.5 6.0 4.5 5.0 4.5 3.5 4.0 1.0 .5 .5 18 14.0 13.0 13.5 6.5 5.0 5.0 5.0 4.5 4.5 .5 .0 .0 19 14.0 13.0 13.5 6.5 5.0 5.5 5.0 4.5 5.0 1.0 .0 .5 20 13.5 12.5 13.0 6.5 4.5 5.0 4.5 3.5 4.0 1.5 .0 .5 21 12.5 11.5 12.5 6.0 4.5 5.0 3.5 3.0 3.0 1.0 .0 .0 22 12.0 11.5 11.5 6.0 4.5 5.0 3.0 2.0 2.5 1.5 .0 .5 23 11.5 11.0 11.5 6.0 4.5 4.5 2.0 2.0 2.0 1.0 .0 .5 24 11.0 11.0 11.0 6.0 4.5 5.0 3.0 2.0 2.5 2.5 .0 .5 25 11.5 11.0 11.0 6.0 4.5 5.0 3.5 3.0 3.5 .5 .0 .5 26 12.0 11.0 11.5 6.0 4.5 5.0 3.0 2.5 2.5 .5 .0 .0 27 12.0 11.0 11.5 4.5 3.5 4.5 2.5 2.0 2.0 1.0 .0 .5 28 12.0 11.5 11.5 4.0 3.0 3.0 2.0 2.0 2.0 .5 .0 .5 29 11.5 11.0 11.5 3.0 2.5 2.5 2.5 2.0 2.0 .5 .0 .0 30 12.0 10.5 11.0 3.5 2.0 2.5 3.0 2.5 2.5 1.0 .0 .5 31 12.0 10.5 11.0 --- --- --- 2.5 2.0 2.5 1.0 .0 .5 MONTH 19.0 10.5 12.5 12.5 2.0 7.0 6.0 2.0 3.0 2.5 .0 1.0 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN FEBRUARY MARCH APRIL MAY 1 1.0 .0 .5 3.0 2.5 3.0 4.0 3.0 3.5 10.0 9.5 10.0 2 1.5 .0 .5 3.0 2.5 3.0 3.5 3.0 3.5 11.0 10.0 10.5 3 --- --- --- 2.5 2.0 2.5 4.0 3.5 4.0 11.0 10.5 11.0 4 --- --- --- 2.5 2.0 2.5 5.5 4.0 5.0 11.5 10.5 11.0 5 --- --- --- 2.5 2.0 2.5 6.5 5.0 6.0 11.0 10.5 10.5 6 --- --- --- 3.0 2.5 2.5 6.5 6.0 6.0 10.5 10.0 10.5 7 --- --- --- 3.0 2.5 2.5 7.0 6.0 6.5 10.5 9.5 10.0 8 --- --- --- 2.5 2.0 2.5 6.5 6.0 6.5 10.0 9.5 10.0 9 --- --- --- 2.0 1.5 2.0 6.0 5.5 6.0 10.0 10.0 10.0 10 --- --- --- 2.0 1.0 1.5 5.5 5.0 5.0 10.0 10.0 10.0 11 --- --- --- 2.5 1.5 2.0 5.5 5.0 5.0 11.0 10.0 10.5 12 --- --- --- 2.5 1.5 2.0 5.5 5.0 5.5 12.5 10.5 11.5 13 --- --- --- 2.5 1.5 2.0 6.0 5.5 5.5 12.5 11.5 12.0 14 --- --- --- 2.0 1.5 2.0 6.5 5.5 6.0 12.5 11.5 12.0 15 --- --- --- 2.0 1.5 1.5 6.5 6.0 6.0 13.5 11.5 12.5 16 --- --- --- 2.5 1.5 2.0 7.0 6.0 7.0 13.5 12.5 13.0 17 --- --- --- 2.0 1.0 1.5 7.5 7.0 7.5 13.5 12.5 13.0 18 --- --- --- 3.0 1.5 2.0 7.5 7.0 7.5 13.0 12.0 12.5 19 5.0 2.0 3.0 3.5 2.0 2.5 7.0 6.5 7.0 14.0 12.5 13.0 20 5.5 3.0 4.0 3.5 2.5 3.0 7.0 6.5 6.5 14.0 13.0 13.5 21 6.0 3.5 4.0 3.5 3.0 3.5 6.5 6.5 6.5 14.0 13.0 13.5 22 5.5 4.0 5.0 4.5 3.5 4.0 7.0 6.5 6.5 13.5 13.0 13.0 23 5.5 4.0 5.0 4.5 3.5 4.0 7.5 7.0 7.5 14.0 12.5 13.5 24 4.0 2.5 3.5 4.5 3.0 4.0 8.0 7.5 8.0 15.0 13.0 14.0 25 2.5 1.5 2.0 4.5 3.5 4.0 8.5 8.0 8.0 15.0 14.0 14.5 26 2.0 1.0 1.5 5.0 4.0 4.5 9.0 8.0 8.5 15.5 14.0 15.0 27 3.0 1.5 2.0 5.5 4.5 5.0 9.5 8.5 9.0 16.0 14.5 15.5 28 3.5 2.5 3.0 6.0 4.5 5.5 9.0 9.0 9.0 16.5 14.5 15.5 29 --- --- --- 6.0 5.5 5.5 9.5 8.5 9.0 17.5 15.5 16.5 30 --- --- --- 6.0 5.0 5.5 10.0 9.0 9.5 17.5 16.5 17.0 31 --- --- --- 5.5 4.0 5.0 --- --- --- 18.0 16.5 17.0 MONTH --- --- --- 6.0 1.0 3.0 10.0 3.0 6.5 18.0 9.5 12.5 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997--Continued DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN JUNE JULY AUGUST SEPTEMBER 1 18.0 17.5 18.0 27.0 25.5 26.5 27.0 25.5 26.5 25.0 23.0 23.5 2 19.0 17.5 18.0 27.0 26.0 26.5 27.0 26.0 26.5 25.0 23.5 24.0 3 18.0 17.0 17.5 27.0 26.0 26.5 28.0 26.5 27.0 24.5 23.5 24.0 4 18.0 17.0 17.0 26.5 25.5 26.0 27.0 26.0 26.5 24.0 23.0 23.0 5 18.0 17.0 17.5 26.5 25.0 25.5 26.5 25.5 26.0 23.5 22.5 23.0 6 19.0 17.5 18.0 26.5 24.5 25.5 26.5 25.5 26.0 23.0 22.0 22.5 7 18.5 18.0 18.0 26.5 25.0 25.5 26.5 25.5 26.0 22.5 21.5 22.0 8 19.5 17.5 18.5 26.0 25.0 25.5 25.5 24.5 25.0 22.5 22.0 22.0 9 20.5 18.0 19.0 26.5 25.0 26.0 26.0 24.5 25.5 22.5 21.5 22.0 10 21.5 19.0 20.0 26.0 25.0 25.5 26.0 25.5 26.0 22.0 21.5 22.0 11 23.0 20.5 21.5 26.0 25.0 25.5 27.0 25.5 26.5 22.0 21.5 21.5 12 24.0 21.5 22.5 26.0 25.0 25.5 27.0 26.0 26.5 22.5 21.0 22.0 13 24.0 22.5 23.0 27.0 25.5 26.0 27.0 26.0 26.0 23.0 22.0 22.5 14 24.0 23.0 23.5 27.5 25.5 26.5 27.0 26.0 26.5 23.0 22.0 22.5 15 24.0 23.0 23.5 28.0 26.5 27.0 27.0 26.0 26.0 24.0 22.5 23.0 16 24.0 23.0 23.5 28.0 27.0 27.5 26.5 24.5 25.5 23.5 22.5 23.0 17 24.0 23.0 23.5 28.5 27.5 28.0 27.5 25.5 26.5 24.0 22.5 23.0 18 23.5 22.5 23.0 28.5 27.5 28.0 27.0 26.0 26.5 24.0 23.0 23.5 19 23.5 22.0 22.5 28.5 27.0 27.5 26.5 25.5 26.0 24.0 23.0 23.5 20 24.5 22.5 23.5 27.5 26.0 26.5 26.0 25.0 25.5 23.5 23.0 23.5 21 25.5 23.0 24.0 26.5 25.0 26.0 25.5 23.5 24.5 23.0 22.0 22.5 22 26.0 24.0 25.0 26.5 24.5 25.5 23.5 23.0 23.5 22.5 21.5 22.0 23 27.0 25.0 26.0 25.5 24.5 25.0 23.0 22.5 22.5 22.0 21.0 21.5 24 26.5 25.0 25.5 24.5 24.0 24.5 23.5 22.5 23.0 21.5 20.0 20.5 25 26.5 24.5 25.5 24.5 23.5 24.0 23.5 23.0 23.0 20.5 19.5 20.0 26 26.0 25.0 25.5 25.0 23.5 24.0 24.0 23.0 23.5 20.0 18.5 19.0 27 26.0 25.5 25.5 25.5 24.0 24.5 24.5 23.0 24.0 18.5 18.0 18.0 28 25.5 24.5 25.0 25.5 24.0 25.0 24.5 23.5 24.0 18.5 18.0 18.0 29 26.0 24.5 25.5 25.5 24.5 25.0 24.5 23.5 23.5 18.5 18.0 18.0 30 26.0 25.0 25.5 25.5 24.5 25.0 24.0 23.0 23.5 18.5 17.5 18.0 31 --- --- --- 26.5 25.0 25.5 24.0 23.0 23.5 --- --- --- MONTH 27.0 17.0 22.0 28.5 23.5 26.0 28.0 22.5 25.0 25.0 17.5 22.0 YEAR 28.5 .0 12.5 OXYGEN DISSOLVED (MG/L), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN OCTOBER NOVEMBER DECEMBER JANUARY 1 9.1 8.6 8.8 10.2 9.7 10.0 13.3 12.8 13.2 13.9 13.4 13.6 2 --- --- --- 10.2 9.5 10.1 13.2 12.1 12.7 14.1 13.8 14.0 3 --- --- --- 10.6 10.2 10.4 12.8 12.1 12.3 14.1 13.8 14.0 4 --- --- --- 10.7 10.4 10.6 13.4 12.8 13.3 13.9 13.5 13.7 5 --- --- --- 11.8 10.3 11.0 13.5 13.4 13.5 13.6 13.4 13.5 6 --- --- --- 11.3 11.0 11.1 13.5 12.9 13.2 13.5 13.2 13.4 7 --- --- --- 11.2 10.8 11.1 12.9 12.8 12.9 13.9 13.2 13.6 8 --- --- --- 11.2 10.8 11.0 12.9 12.7 12.8 14.0 13.8 13.9 9 --- --- --- 11.0 9.8 10.6 13.0 12.8 12.9 14.3 14.0 14.2 10 --- --- --- 10.3 9.8 10.0 13.1 12.9 13.0 --- --- --- 11 --- --- --- 11.1 10.3 10.7 13.2 13.0 13.1 --- --- --- 12 --- --- --- 11.6 11.0 11.2 13.0 12.9 13.0 --- --- --- 13 --- --- --- 11.7 11.3 11.5 12.9 12.8 12.8 --- --- --- 14 --- --- --- 12.0 11.5 11.8 13.0 12.7 12.8 --- --- --- 15 --- --- --- 12.3 11.8 12.0 13.0 12.8 12.9 --- --- --- 16 --- --- --- 12.6 12.2 12.4 13.1 12.8 12.9 14.7 14.3 14.5 17 10.4 9.8 10.0 12.9 12.6 12.7 12.9 12.7 12.8 14.5 14.0 14.2 18 10.2 9.7 9.9 12.9 12.4 12.7 12.7 12.4 12.5 14.4 13.9 14.2 19 10.2 9.6 9.9 12.8 12.4 12.6 12.6 12.5 12.5 14.6 14.2 14.4 20 10.0 9.3 9.8 12.8 11.7 12.3 12.7 12.5 12.6 14.6 14.1 14.5 21 9.6 9.1 9.3 12.1 11.5 12.0 13.1 12.7 13.0 14.7 14.3 14.6 22 10.1 9.6 9.9 12.2 11.7 12.0 13.5 13.1 13.4 14.6 14.1 14.4 23 10.8 10.1 10.4 12.2 11.9 12.1 13.7 13.4 13.5 14.5 14.2 14.3 24 10.9 10.5 10.8 12.3 11.9 12.1 13.6 13.3 13.5 14.4 13.6 14.2 25 10.6 10.0 10.3 12.4 11.9 12.2 13.3 12.9 13.1 14.7 14.3 14.6 26 10.4 10.0 10.2 12.4 11.9 12.3 13.6 13.0 13.3 14.9 14.5 14.7 27 10.4 9.9 10.2 12.4 12.1 12.3 14.0 13.5 13.9 15.1 14.6 14.8 28 10.4 10.1 10.3 12.8 12.4 12.6 14.0 13.8 13.9 15.3 15.0 15.2 29 10.3 10.0 10.1 13.2 12.8 13.0 13.9 13.5 13.7 15.4 15.1 15.3 30 10.1 9.9 10.0 13.3 13.0 13.2 13.5 13.3 13.4 15.6 15.2 15.4 31 10.2 10.0 10.1 --- --- --- 13.5 13.3 13.4 16.2 14.0 15.0 MONTH 10.9 8.6 10.0 13.3 9.5 11.7 14.0 12.1 13.1 16.2 13.2 14.3 CONNECTICUT RIVER BASIN 01193050 CONNECTICUT RIVER AT MIDDLE HADDAM, CT OXYGEN DISSOLVED (MG/L), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997--Continued DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN FEBRUARY MARCH APRIL MAY 1 14.3 13.7 14.1 13.5 13.1 13.3 12.8 12.0 12.4 11.3 10.8 11.1 2 14.1 13.6 13.9 13.6 13.2 13.4 13.1 12.7 12.9 11.0 10.5 10.7 3 --- --- --- 13.7 13.4 13.5 13.3 12.9 13.1 10.7 10.4 10.6 4 --- --- --- 13.9 13.5 13.7 13.0 12.5 12.9 10.6 10.3 10.4 5 --- --- --- 14.0 13.4 13.7 12.8 12.2 12.6 11.5 10.3 11.0 6 --- --- --- 14.0 13.6 13.8 12.7 12.0 12.5 11.5 11.2 11.4 7 --- --- --- 13.8 13.4 13.6 12.6 12.2 12.4 11.4 10.8 11.2 8 --- --- --- 14.1 13.4 13.8 12.6 12.2 12.4 11.5 11.0 11.3 9 --- --- --- 14.3 13.7 14.0 12.9 12.4 12.6 11.5 11.0 11.3 10 --- --- --- 14.5 13.9 14.2 13.1 12.6 12.8 11.4 10.7 11.2 11 --- --- --- 14.4 13.9 14.1 13.0 12.6 12.8 11.2 10.9 11.1 12 --- --- --- 14.2 13.8 14.0 12.9 12.6 12.8 11.1 10.6 10.9 13 --- --- --- 14.4 13.9 14.1 12.7 12.1 12.4 10.9 10.4 10.7 14 --- --- --- 14.4 14.0 14.2 12.3 11.9 12.2 10.8 10.2 10.6 15 --- --- --- 14.4 14.1 14.2 12.5 12.0 12.3 10.7 10.0 10.5 16 --- --- --- 14.4 14.1 14.3 12.5 12.0 12.3 10.5 9.9 10.3 17 --- --- --- 14.4 14.1 14.2 12.2 11.6 12.0 10.4 9.7 10.2 18 --- --- --- 14.5 14.1 14.3 11.9 11.5 11.7 10.3 10.0 10.2 19 13.6 13.0 13.4 14.4 14.1 14.2 11.8 11.4 11.6 10.4 9.8 10.2 20 13.4 12.7 13.1 14.4 13.8 14.1 12.5 11.5 12.0 10.5 9.8 10.2 21 13.2 12.3 12.9 14.3 13.7 13.9 12.7 12.3 12.6 10.8 10.0 10.4 22 13.3 12.5 12.8 14.0 13.5 13.7 12.8 12.3 12.5 10.8 10.3 10.6 23 12.9 12.4 12.6 13.8 13.5 13.6 12.5 12.0 12.3 10.8 10.3 10.6 24 13.5 12.6 13.1 13.9 12.6 13.2 12.3 11.3 11.8 10.7 10.2 10.5 25 14.1 13.4 13.7 12.9 12.5 12.7 11.4 11.1 11.2 10.5 10.0 10.3 26 14.3 13.8 14.1 12.9 12.3 12.6 11.4 11.1 11.3 10.3 9.9 10.1 27 14.3 13.3 13.8 12.7 12.1 12.4 11.4 11.1 11.3 10.3 9.9 10.1 28 13.5 13.1 13.3 12.5 12.1 12.4 11.3 11.0 11.2 10.4 9.8 10.1 29 --- --- --- 12.4 12.2 12.3 11.1 10.8 10.9 10.3 10.0 10.1 30 --- --- --- 12.4 12.0 12.2 11.3 10.9 11.1 10.1 9.7 9.9 31 --- --- --- 12.5 12.1 12.3 --- --- --- 10.1 9.6 9.9 MONTH --- --- --- 14.5 12.0 13.5 13.3 10.8 12.2 11.5 9.6 10.6 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN JUNE JULY AUGUST SEPTEMBER 1 10.1 9.4 9.8 15.2 12.1 13.6 12.6 10.0 11.3 9.4 7.3 8.5 2 9.9 9.0 9.5 13.5 10.2 11.9 12.6 9.6 11.2 9.5 8.1 8.8 3 9.5 9.0 9.3 11.2 9.7 10.4 12.3 9.9 10.8 9.6 8.4 8.8 4 9.8 9.1 9.3 12.0 9.8 10.6 11.2 7.9 10.0 9.8 8.2 8.9 5 9.5 9.0 9.3 11.8 8.1 9.7 10.3 7.6 9.2 10.3 7.9 9.1 6 9.9 9.2 9.5 11.7 7.8 8.9 11.3 7.7 9.5 10.6 8.4 9.5 7 10.0 9.0 9.5 10.6 7.9 9.2 10.6 8.2 9.4 10.0 8.2 9.1 8 10.5 9.1 9.8 10.6 8.2 9.3 10.2 8.5 9.4 9.7 8.2 9.1 9 12.1 9.4 10.5 9.9 7.8 8.7 10.7 8.9 9.7 9.7 6.9 8.9 10 13.3 9.8 11.6 9.1 6.9 7.8 10.7 8.8 9.8 9.6 7.7 9.0 11 13.1 9.9 11.6 7.6 6.0 7.0 11.0 8.1 9.7 9.2 7.6 8.7 12 12.6 9.9 11.6 8.3 7.0 7.6 11.3 7.6 9.9 9.6 7.3 8.8 13 12.1 7.7 10.6 9.2 6.7 8.2 10.2 6.8 9.0 9.8 6.2 9.0 14 10.6 7.8 9.6 9.7 6.7 8.4 9.9 7.6 9.0 9.7 8.1 8.9 15 10.1 7.7 9.3 9.0 6.7 8.3 9.6 7.3 8.7 10.3 8.0 9.1 16 10.7 7.8 9.5 8.4 6.6 7.6 8.5 5.8 7.4 10.5 7.8 9.5 17 11.5 7.1 9.9 7.6 5.9 6.9 7.7 5.7 6.8 11.4 6.7 10.0 18 10.8 7.9 9.4 7.7 6.4 7.1 7.6 5.3 6.6 11.0 8.8 9.8 19 9.3 6.9 8.5 8.0 6.4 7.3 9.8 5.3 8.0 10.7 7.9 9.6 20 9.3 7.6 8.3 9.7 7.2 8.3 9.6 8.1 8.7 10.2 8.9 9.5 21 9.5 7.5 8.2 9.8 7.7 8.6 8.8 7.9 8.2 10.7 8.6 9.7 22 9.2 7.6 8.1 10.5 7.6 8.7 7.9 7.2 7.5 11.2 8.2 10.0 23 10.0 7.3 8.4 9.9 8.3 8.8 7.8 7.0 7.4 10.3 8.4 9.7 24 9.0 7.4 8.1 8.8 8.1 8.4 8.2 6.9 7.8 10.8 7.1 9.7 25 9.3 7.0 8.0 9.1 7.9 8.4 8.9 7.7 8.3 10.9 7.3 9.8 26 8.6 6.3 7.7 9.7 7.6 8.8 9.7 7.4 8.7 10.5 7.2 9.3 27 8.8 6.5 7.9 10.3 8.4 9.5 10.3 7.7 9.2 9.9 7.4 9.0 28 10.5 7.8 9.0 11.4 8.8 10.4 9.9 8.3 9.2 10.5 7.3 9.4 29 13.4 8.6 11.3 12.2 9.5 11.1 9.5 8.0 8.8 10.0 6.8 9.2 30 14.7 10.0 12.6 12.7 9.9 11.5 9.0 7.9 8.3 10.1 7.6 9.2 31 --- --- --- 12.2 9.9 11.2 8.9 7.5 8.2 --- --- --- MONTH 14.7 6.3 9.5 15.2 5.9 9.1 12.6 5.3 8.9 11.4 6.2 9.3 YEAR 16.2 5.3 11.2