| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.0 | 43.0 | 48.5 | 55.8 | 63.6 | 72.2 | 81.6 | 81.7 | 71.2 | 59.5 | 44.9 | 37.6 | 58.1 |
| Highest Mean Max. Temperature (F) | 43.2 | 50.8 | 54.6 | 64.9 | 68.9 | 79.0 | 89.0 | 90.1 | 81.5 | 68.4 | 48.6 | 44.4 | 60.7 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1990 | 1988 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 24.8 | 32.1 | 43.8 | 48.1 | 58.4 | 65.7 | 76.0 | 75.7 | 63.3 | 54.1 | 32.2 | 29.9 | 55.5 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1975 | 1962 | 1980 | 1983 | 1975 | 1985 | 1969 | 1985 | 1983 | 1982 |
| Mean Temperature (F) | 29.2 | 34.0 | 38.1 | 44.2 | 51.2 | 59.0 | 65.7 | 65.5 | 56.3 | 46.8 | 36.5 | 29.8 | 46.4 |
| Highest Mean Temperature (F) | 35.1 | 40.1 | 44.1 | 51.1 | 55.6 | 64.2 | 71.3 | 71.5 | 63.5 | 54.0 | 40.5 | 36.3 | 48.2 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1961 | 1990 | 1988 | 1989 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 16.7 | 23.4 | 33.3 | 38.4 | 47.4 | 54.9 | 61.9 | 60.9 | 49.7 | 42.2 | 25.5 | 21.7 | 44.1 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1977 | 1976 | 1986 | 1980 | 1970 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 21.4 | 24.9 | 27.8 | 32.5 | 38.8 | 45.8 | 49.8 | 49.3 | 41.4 | 34.2 | 28.1 | 22.1 | 34.7 |
| Highest Mean Min. Temperature (F) | 27.8 | 29.6 | 33.6 | 37.3 | 42.8 | 49.9 | 54.1 | 54.0 | 47.7 | 39.5 | 32.9 | 28.5 | 36.4 |
| Year Highest Occurred | 1990 | 1968 | 1986 | 1987 | 1987 | 1986 | 1975 | 1961 | 1963 | 1988 | 1989 | 1980 | 1990 |
| Lowest Mean Min. Temperature (F) | 8.5 | 14.7 | 20.6 | 28.6 | 35.2 | 43.1 | 47.2 | 45.0 | 36.1 | 29.3 | 18.7 | 12.8 | 32.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1972 | 1974 | 1976 | 1962 | 1987 | 1970 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.61 | 1.15 | 2.41 | 2.61 | 3.27 | 2.89 | 1.17 | 1.27 | 1.78 | 1.86 | 1.75 | 1.62 | 23.39 |
| Highest Precipitation (in.) | 4.23 | 3.31 | 4.33 | 5.57 | 6.30 | 7.69 | 4.01 | 4.15 | 5.24 | 4.82 | 3.09 | 4.22 | 32.67 |
| Year Highest Occurred | 1969 | 1986 | 1984 | 1978 | 1990 | 1964 | 1978 | 1965 | 1985 | 1975 | 1981 | 1964 | 1975 |
| Lowest Precipitation (in.) | 0.25 | 0.06 | 0.56 | 0.45 | 0.88 | 0.65 | 0.00 | 0.00 | 0.04 | 0.00 | 0.14 | 0.28 | 15.09 |
| Year Lowest Occurred | 1961 | 1967 | 1965 | 1973 | 1966 | 1977 | 1961 | 1969 | 1990 | 1987 | 1969 | 1976 | 1974 |
| Heating Degree Days (F) | 1110. | 868. | 834. | 624. | 428. | 198. | 63. | 92. | 288. | 564. | 855. | 1091. | 7015. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 18. | 85. | 108. | 27. | 0. | 0. | 0. | 238. |