| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 83.5 | 83.9 | 85.0 | 86.3 | 87.2 | 88.3 | 88.8 | 89.1 | 88.9 | 88.3 | 86.3 | 84.2 | 86.7 |
| Highest Mean Max. Temperature (F) | 85.5 | 85.6 | 87.2 | 88.9 | 89.8 | 90.1 | 90.4 | 91.4 | 91.2 | 90.4 | 88.2 | 87.7 | 88.1 |
| Year Highest Occurred | 1990 | 1983 | 1981 | 1969 | 1964 | 1988 | 1974 | 1987 | 1987 | 1987 | 1990 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 81.5 | 82.2 | 82.9 | 83.8 | 85.3 | 86.4 | 86.7 | 88.0 | 86.7 | 86.2 | 84.2 | 81.0 | 85.5 |
| Year Lowest Occurred | 1975 | 1976 | 1976 | 1968 | 1982 | 1976 | 1970 | 1977 | 1979 | 1985 | 1984 | 1975 | 1976 |
| Mean Temperature (F) | 72.4 | 72.7 | 73.7 | 75.5 | 77.4 | 78.8 | 79.1 | 79.2 | 78.9 | 78.2 | 76.2 | 73.8 | 76.3 |
| Highest Mean Temperature (F) | 74.7 | 74.4 | 76.4 | 78.0 | 79.8 | 80.5 | 80.4 | 80.5 | 80.3 | 79.6 | 78.0 | 76.5 | 77.7 |
| Year Highest Occurred | 1981 | 1963 | 1983 | 1969 | 1969 | 1980 | 1985 | 1987 | 1987 | 1987 | 1981 | 1987 | 1981 |
| Lowest Mean Temperature (F) | 70.5 | 71.5 | 71.1 | 72.8 | 75.8 | 76.8 | 77.8 | 78.1 | 77.5 | 75.6 | 74.9 | 71.9 | 74.8 |
| Year Lowest Occurred | 1965 | 1989 | 1976 | 1968 | 1989 | 1989 | 1989 | 1989 | 1989 | 1989 | 1989 | 1988 | 1989 |
| Mean Min. Temperature (F) | 61.3 | 61.5 | 62.3 | 64.6 | 67.6 | 69.1 | 69.2 | 69.2 | 68.8 | 68.0 | 66.1 | 63.3 | 65.9 |
| Highest Mean Min. Temperature (F) | 64.1 | 63.5 | 66.2 | 68.3 | 71.2 | 72.0 | 71.4 | 71.0 | 71.3 | 69.9 | 68.9 | 67.1 | 68.0 |
| Year Highest Occurred | 1981 | 1978 | 1983 | 1981 | 1969 | 1979 | 1979 | 1979 | 1979 | 1979 | 1974 | 1981 | 1981 |
| Lowest Mean Min. Temperature (F) | 56.6 | 59.4 | 58.7 | 61.6 | 64.5 | 65.5 | 66.4 | 66.5 | 65.4 | 62.5 | 62.0 | 57.3 | 62.8 |
| Year Lowest Occurred | 1990 | 1990 | 1967 | 1974 | 1989 | 1989 | 1989 | 1989 | 1990 | 1989 | 1989 | 1989 | 1989 |
| Mean Precipitation (in.) | 3.06 | 2.49 | 2.99 | 3.89 | 6.46 | 5.32 | 5.14 | 7.57 | 6.98 | 7.43 | 6.94 | 5.22 | 63.49 |
| Highest Precipitation (in.) | 11.21 | 6.35 | 7.63 | 9.10 | 14.91 | 22.10 | 9.52 | 13.54 | 16.53 | 31.04 | 21.84 | 12.97 | 118.40 |
| Year Highest Occurred | 1969 | 1989 | 1972 | 1983 | 1969 | 1970 | 1983 | 1963 | 1989 | 1970 | 1977 | 1970 | 1970 |
| Lowest Precipitation (in.) | 0.88 | 0.71 | 0.57 | 0.98 | 0.84 | 0.41 | 1.56 | 2.86 | 2.62 | 1.53 | 1.98 | 0.20 | 33.42 |
| Year Lowest Occurred | 1985 | 1977 | 1967 | 1965 | 1974 | 1977 | 1971 | 1984 | 1983 | 1989 | 1976 | 1989 | 1967 |
| Heating Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |
| Cooling Degree Days (F) | 229. | 216. | 270. | 315. | 384. | 414. | 437. | 440. | 417. | 409. | 336. | 273. | 4140. |