| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 30.9 | 35.9 | 41.4 | 52.9 | 62.5 | 71.9 | 80.8 | 80.3 | 68.2 | 58.3 | 43.5 | 33.6 | 55.0 |
| Highest Mean Max. Temperature (F) | 45.1 | 47.3 | 53.7 | 63.4 | 70.5 | 83.9 | 86.1 | 90.8 | 78.5 | 66.7 | 52.0 | 44.4 | 59.2 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1987 | 1985 | 1988 | 1985 | 1971 | 1990 | 1963 | 1987 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 14.2 | 19.4 | 26.0 | 37.1 | 56.1 | 65.5 | 74.0 | 71.5 | 53.2 | 45.1 | 20.0 | 16.9 | 50.1 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1974 | 1968 | 1978 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Temperature (F) | 20.1 | 25.0 | 30.5 | 40.8 | 49.9 | 58.5 | 65.3 | 64.7 | 54.1 | 45.0 | 32.1 | 22.6 | 42.4 |
| Highest Mean Temperature (F) | 33.4 | 35.7 | 41.6 | 48.2 | 55.7 | 67.5 | 69.2 | 72.3 | 62.2 | 52.3 | 39.2 | 31.6 | 45.4 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1987 | 1985 | 1988 | 1985 | 1971 | 1963 | 1963 | 1981 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 2.3 | 9.5 | 15.4 | 28.5 | 45.9 | 54.1 | 60.6 | 58.5 | 42.8 | 35.1 | 10.7 | 6.3 | 38.3 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1975 | 1968 | 1981 | 1972 | 1977 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 9.2 | 14.1 | 19.6 | 28.8 | 37.3 | 45.1 | 49.8 | 49.1 | 39.9 | 31.7 | 20.5 | 11.6 | 29.7 |
| Highest Mean Min. Temperature (F) | 22.7 | 24.1 | 29.4 | 35.3 | 41.4 | 51.0 | 54.3 | 53.8 | 47.7 | 37.9 | 27.8 | 21.0 | 32.8 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1980 | 1987 | 1988 | 1975 | 1971 | 1963 | 1963 | 1981 | 1973 | 1981 |
| Lowest Mean Min. Temperature (F) | -10.6 | -0.4 | 4.7 | 19.9 | 33.3 | 41.5 | 45.2 | 44.0 | 32.3 | 25.0 | 1.4 | -4.4 | 26.5 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1975 | 1968 | 1969 | 1972 | 1987 | 1965 | 1969 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.98 | 0.63 | 0.98 | 1.21 | 3.31 | 3.07 | 1.78 | 1.88 | 1.52 | 1.11 | 0.74 | 0.93 | 18.14 |
| Highest Precipitation (in.) | 2.75 | 1.97 | 2.62 | 2.66 | 9.16 | 6.47 | 4.83 | 5.54 | 3.86 | 2.44 | 1.50 | 2.81 | 28.11 |
| Year Highest Occurred | 1978 | 1979 | 1975 | 1973 | 1981 | 1973 | 1978 | 1985 | 1967 | 1969 | 1978 | 1989 | 1978 |
| Lowest Precipitation (in.) | 0.10 | 0.09 | 0.18 | 0.36 | 0.82 | 0.99 | 0.11 | 0.28 | 0.00 | 0.00 | 0.07 | 0.17 | 10.91 |
| Year Lowest Occurred | 1983 | 1990 | 1963 | 1985 | 1984 | 1974 | 1984 | 1967 | 1990 | 1965 | 1988 | 1986 | 1984 |
| Heating Degree Days (F) | 1392. | 1120. | 1070. | 726. | 468. | 221. | 75. | 131. | 355. | 620. | 987. | 1314. | 8479. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 26. | 85. | 121. | 28. | 0. | 0. | 0. | 260. |