| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.3 | 54.5 | 58.7 | 66.1 | 76.1 | 84.9 | 93.4 | 92.7 | 86.3 | 74.3 | 54.9 | 46.0 | 69.7 |
| Highest Mean Max. Temperature (F) | 53.8 | 63.4 | 67.4 | 78.8 | 82.7 | 92.1 | 99.6 | 101.4 | 94.4 | 84.7 | 61.0 | 49.7 | 73.0 |
| Year Highest Occurred | 1963 | 1988 | 1990 | 1987 | 1987 | 1987 | 1985 | 1986 | 1974 | 1988 | 1967 | 1977 | 1987 |
| Lowest Mean Max. Temperature (F) | 41.5 | 44.4 | 52.6 | 50.9 | 65.6 | 78.5 | 86.5 | 82.3 | 77.5 | 65.5 | 48.6 | 39.3 | 67.1 |
| Year Lowest Occurred | 1969 | 1969 | 1983 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1972 | 1963 |
| Mean Temperature (F) | 37.1 | 41.6 | 44.6 | 49.6 | 57.6 | 65.3 | 71.3 | 70.6 | 64.2 | 55.0 | 43.4 | 36.7 | 53.1 |
| Highest Mean Temperature (F) | 41.8 | 48.2 | 49.9 | 57.4 | 63.2 | 70.7 | 76.7 | 75.9 | 67.9 | 62.1 | 47.7 | 41.1 | 55.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1987 | 1987 | 1985 | 1986 | 1967 | 1987 | 1967 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 32.4 | 36.5 | 41.2 | 40.7 | 51.3 | 59.9 | 66.4 | 65.8 | 59.7 | 49.4 | 37.5 | 29.7 | 51.1 |
| Year Lowest Occurred | 1969 | 1969 | 1967 | 1967 | 1977 | 1980 | 1963 | 1976 | 1982 | 1969 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 25.9 | 28.7 | 30.5 | 33.0 | 39.1 | 45.6 | 49.1 | 48.4 | 42.1 | 35.6 | 31.9 | 27.4 | 36.4 |
| Highest Mean Min. Temperature (F) | 32.6 | 37.4 | 37.7 | 38.6 | 43.8 | 50.7 | 53.7 | 52.5 | 46.9 | 41.6 | 37.0 | 34.0 | 39.3 |
| Year Highest Occurred | 1970 | 1963 | 1983 | 1988 | 1963 | 1989 | 1985 | 1983 | 1976 | 1963 | 1965 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 18.7 | 22.9 | 26.8 | 27.4 | 34.5 | 40.6 | 44.7 | 44.3 | 37.2 | 30.8 | 26.4 | 18.1 | 34.0 |
| Year Lowest Occurred | 1963 | 1964 | 1976 | 1975 | 1982 | 1979 | 1982 | 1980 | 1982 | 1980 | 1985 | 1990 | 1982 |
| Mean Precipitation (in.) | 7.10 | 5.19 | 4.80 | 2.06 | 1.05 | 0.46 | 0.18 | 0.43 | 1.09 | 2.54 | 6.38 | 6.96 | 38.24 |
| Highest Precipitation (in.) | 17.55 | 14.45 | 14.86 | 6.27 | 6.91 | 1.67 | 1.24 | 2.86 | 4.57 | 7.99 | 16.89 | 17.69 | 71.05 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1969 | 1974 | 1976 | 1986 | 1962 | 1984 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.56 | 0.17 | 0.63 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.72 | 0.00 | 17.53 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1968 | 1982 | 1986 | 1989 | 1988 | 1988 | 1978 | 1990 | 1989 | 1976 |
| Heating Degree Days (F) | 865. | 655. | 632. | 471. | 243. | 82. | 14. | 17. | 94. | 318. | 648. | 877. | 4916. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 13. | 91. | 210. | 191. | 70. | 8. | 0. | 0. | 592. |