| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.5 | 43.6 | 55.7 | 64.5 | 72.8 | 81.5 | 90.6 | 90.4 | 79.7 | 66.6 | 48.5 | 36.9 | 63.9 |
| Highest Mean Max. Temperature (F) | 43.3 | 52.3 | 64.0 | 73.2 | 81.1 | 88.6 | 96.3 | 98.4 | 87.6 | 76.3 | 55.8 | 44.4 | 98.4 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1987 | 1992 | 1986 | 1998 | 1971 | 1990 | 1988 | 1999 | 1977 | 1971 |
| Lowest Mean Max. Temperature (F) | 23.9 | 27.8 | 47.9 | 54.6 | 65.9 | 75.7 | 81.2 | 82.1 | 70.0 | 61.3 | 38.0 | 20.4 | 20.4 |
| Year Lowest Occurred | 1979 | 1989 | 1993 | 1975 | 1977 | 1993 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 27.2 | 34.0 | 42.9 | 50.1 | 58.2 | 65.7 | 72.4 | 71.2 | 61.4 | 50.1 | 37.5 | 28.3 | 49.9 |
| Highest Mean Temperature (F) | 35.3 | 41.1 | 47.9 | 55.6 | 63.5 | 71.2 | 78.4 | 77.1 | 68.5 | 58.0 | 42.9 | 36.4 | 78.4 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1990 | 1992 | 1986 | 1998 | 1971 | 1998 | 1988 | 1999 | 1977 | 1998 |
| Lowest Mean Temperature (F) | 13.1 | 16.1 | 37.3 | 43.7 | 53.4 | 61.6 | 65.3 | 65.9 | 54.8 | 45.5 | 27.6 | 11.1 | 11.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1980 | 1993 | 1976 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 18.8 | 24.3 | 30.1 | 35.7 | 43.6 | 49.8 | 54.2 | 52.0 | 43.1 | 33.5 | 26.5 | 19.7 | 35.9 |
| Highest Mean Min. Temperature (F) | 27.9 | 30.9 | 34.8 | 40.0 | 48.3 | 54.5 | 60.5 | 55.8 | 51.9 | 39.6 | 33.7 | 28.3 | 60.5 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1990 | 1987 | 1988 | 1998 | 1971 | 1998 | 1988 | 1983 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 2.2 | 4.3 | 25.6 | 31.1 | 39.9 | 45.0 | 49.4 | 46.9 | 37.7 | 29.4 | 17.2 | 1.7 | 1.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1974 | 1980 | 1993 | 1980 | 1971 | 1976 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.38 | 1.01 | 1.25 | 0.96 | 1.13 | 0.84 | 0.35 | 0.41 | 0.65 | 0.67 | 1.23 | 1.27 | 11.15 |
| Highest Precipitation (in.) | 3.62 | 2.12 | 3.05 | 3.36 | 4.22 | 2.70 | 1.34 | 2.08 | 2.55 | 2.07 | 2.45 | 2.74 | 4.22 |
| Year Highest Occurred | 1978 | 1999 | 1983 | 1978 | 1998 | 1972 | 1997 | 1979 | 1980 | 2000 | 1988 | 1982 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.03 | 0.07 | 0.02 | 0.16 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.05 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1994 | 1987 | 1978 | 1973 | 2000 | 2000 | 1999 | 1988 | 1976 | 1989 | 1985 |
| Heating Degree Days (F) | 1174. | 868. | 686. | 448. | 230. | 78. | 16. | 26. | 167. | 464. | 825. | 1138. | 6120. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 20. | 98. | 246. | 219. | 59. | 1. | 0. | 0. | 645. |