| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.3 | 64.1 | 69.1 | 76.2 | 85.5 | 93.4 | 98.9 | 97.2 | 91.6 | 81.8 | 67.2 | 57.9 | 78.4 |
| Highest Mean Max. Temperature (F) | 64.6 | 70.0 | 77.5 | 86.0 | 92.9 | 98.4 | 103.7 | 103.4 | 95.1 | 87.7 | 73.2 | 65.8 | 81.4 |
| Year Highest Occurred | 1986 | 1988 | 1972 | 1987 | 1984 | 1985 | 1988 | 1967 | 1974 | 1988 | 1986 | 1974 | 1988 |
| Lowest Mean Max. Temperature (F) | 51.1 | 58.2 | 61.7 | 61.5 | 75.2 | 87.4 | 93.3 | 89.3 | 85.6 | 74.7 | 61.5 | 51.2 | 75.1 |
| Year Lowest Occurred | 1977 | 1962 | 1973 | 1967 | 1977 | 1982 | 1983 | 1976 | 1985 | 1984 | 1972 | 1965 | 1982 |
| Mean Temperature (F) | 46.4 | 51.6 | 55.3 | 60.7 | 68.7 | 76.2 | 81.7 | 80.3 | 74.7 | 65.6 | 54.0 | 46.6 | 63.5 |
| Highest Mean Temperature (F) | 54.1 | 56.9 | 61.1 | 68.1 | 74.0 | 80.5 | 86.6 | 85.2 | 79.4 | 71.0 | 59.2 | 54.6 | 65.9 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1984 | 1985 | 1988 | 1967 | 1984 | 1987 | 1967 | 1974 | 1986 |
| Lowest Mean Temperature (F) | 41.3 | 47.8 | 50.7 | 50.2 | 61.3 | 71.0 | 76.0 | 74.5 | 70.4 | 61.3 | 49.7 | 41.2 | 61.7 |
| Year Lowest Occurred | 1972 | 1966 | 1973 | 1967 | 1977 | 1980 | 1983 | 1976 | 1978 | 1981 | 1978 | 1978 | 1975 |
| Mean Min. Temperature (F) | 35.4 | 39.1 | 41.5 | 45.2 | 51.9 | 58.9 | 64.4 | 63.2 | 57.7 | 49.4 | 40.7 | 35.2 | 48.6 |
| Highest Mean Min. Temperature (F) | 43.6 | 45.2 | 46.6 | 51.5 | 55.8 | 62.9 | 70.4 | 67.0 | 64.2 | 56.1 | 45.6 | 43.3 | 50.9 |
| Year Highest Occurred | 1986 | 1968 | 1989 | 1990 | 1987 | 1981 | 1984 | 1967 | 1984 | 1987 | 1965 | 1974 | 1986 |
| Lowest Mean Min. Temperature (F) | 29.5 | 34.5 | 35.8 | 38.9 | 47.3 | 53.6 | 58.7 | 58.8 | 53.6 | 45.1 | 33.7 | 28.6 | 45.7 |
| Year Lowest Occurred | 1962 | 1964 | 1977 | 1967 | 1977 | 1980 | 1983 | 1968 | 1978 | 1970 | 1975 | 1990 | 1975 |
| Mean Precipitation (in.) | 1.51 | 1.55 | 1.05 | 0.59 | 0.18 | 0.04 | 0.02 | 0.04 | 0.34 | 0.35 | 0.97 | 1.18 | 7.82 |
| Highest Precipitation (in.) | 5.69 | 6.43 | 3.12 | 2.08 | 1.51 | 0.78 | 0.26 | 0.37 | 3.81 | 1.58 | 4.80 | 4.37 | 15.36 |
| Year Highest Occurred | 1969 | 1969 | 1978 | 1967 | 1977 | 1987 | 1966 | 1983 | 1976 | 1987 | 1965 | 1977 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.82 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1979 | 1986 | 1990 | 1990 | 1990 | 1988 | 1988 | 1980 | 1975 | 1989 |
| Heating Degree Days (F) | 577. | 375. | 309. | 200. | 43. | 0. | 0. | 0. | 0. | 77. | 330. | 570. | 2481. |
| Cooling Degree Days (F) | 0. | 0. | 9. | 71. | 157. | 336. | 518. | 474. | 295. | 96. | 0. | 0. | 1956. |