| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.9 | 42.3 | 50.0 | 58.2 | 67.1 | 74.4 | 82.6 | 82.5 | 74.0 | 61.2 | 44.5 | 36.7 | 59.3 |
| Highest Mean Max. Temperature (F) | 45.6 | 49.8 | 58.8 | 64.5 | 75.3 | 82.2 | 90.8 | 90.3 | 80.7 | 71.5 | 49.7 | 42.7 | 90.8 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1992 | 1985 | 1981 | 1990 | 1988 | 1995 | 1975 | 1985 |
| Lowest Mean Max. Temperature (F) | 28.0 | 34.8 | 43.1 | 53.1 | 58.8 | 68.8 | 72.0 | 77.6 | 66.1 | 55.1 | 34.4 | 26.4 | 26.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1991 | 1993 | 1989 | 1977 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 31.0 | 34.5 | 39.8 | 45.5 | 52.9 | 59.3 | 65.6 | 65.1 | 57.7 | 47.8 | 37.4 | 30.8 | 47.3 |
| Highest Mean Temperature (F) | 37.2 | 40.4 | 44.7 | 49.5 | 57.7 | 64.7 | 70.5 | 70.7 | 62.2 | 54.1 | 42.5 | 36.6 | 70.7 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1992 | 1998 | 1981 | 1998 | 1988 | 1974 | 1975 | 1981 |
| Lowest Mean Temperature (F) | 18.4 | 25.6 | 35.1 | 41.5 | 47.7 | 55.3 | 58.8 | 61.1 | 51.4 | 43.4 | 27.6 | 19.5 | 18.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1991 | 1993 | 1995 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 24.0 | 26.6 | 29.5 | 32.8 | 38.6 | 44.2 | 48.6 | 47.6 | 41.3 | 34.4 | 30.2 | 24.9 | 35.2 |
| Highest Mean Min. Temperature (F) | 29.7 | 32.3 | 35.3 | 35.6 | 42.4 | 49.4 | 52.9 | 51.2 | 44.2 | 40.8 | 35.6 | 30.7 | 52.9 |
| Year Highest Occurred | 1983 | 1992 | 1983 | 1988 | 1993 | 1977 | 1998 | 1999 | 1981 | 1975 | 1974 | 1979 | 1998 |
| Lowest Mean Min. Temperature (F) | 8.8 | 16.3 | 25.0 | 28.3 | 33.3 | 40.1 | 45.0 | 43.3 | 35.8 | 28.2 | 20.7 | 12.6 | 8.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1999 | 1999 | 1984 | 1984 | 1985 | 1985 | 1972 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 7.10 | 6.15 | 4.67 | 2.53 | 1.50 | 1.06 | 0.43 | 0.72 | 1.49 | 3.21 | 7.19 | 7.34 | 43.39 |
| Highest Precipitation (in.) | 15.36 | 15.35 | 11.96 | 7.01 | 3.48 | 3.45 | 2.04 | 3.56 | 4.62 | 10.63 | 16.88 | 18.41 | 18.41 |
| Year Highest Occurred | 1972 | 1982 | 1971 | 1993 | 1984 | 1981 | 1993 | 1979 | 1997 | 1997 | 1983 | 1980 | 1980 |
| Lowest Precipitation (in.) | 0.11 | 0.76 | 1.14 | 0.00 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.07 | 0.95 | 0.75 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 2000 | 1977 | 1992 | 1976 | 2000 | 2000 | 1991 | 1978 | 1976 | 2000 | 1977 |
| Heating Degree Days (F) | 1057. | 856. | 783. | 585. | 379. | 192. | 72. | 80. | 242. | 534. | 829. | 1060. | 6669. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 20. | 91. | 82. | 21. | 0. | 0. | 0. | 216. |