| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.1 | 47.2 | 52.5 | 59.3 | 67.8 | 76.4 | 84.9 | 84.3 | 77.8 | 66.6 | 51.8 | 42.7 | 62.9 |
| Highest Mean Max. Temperature (F) | 48.5 | 58.7 | 60.4 | 69.3 | 77.2 | 83.3 | 90.0 | 89.5 | 86.1 | 77.2 | 65.6 | 55.4 | 90.0 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1987 | 1992 | 1977 | 1973 | 1981 | 1974 | 1978 | 1976 | 1976 | 1973 |
| Lowest Mean Max. Temperature (F) | 38.1 | 36.7 | 43.4 | 48.3 | 56.5 | 69.2 | 77.9 | 78.1 | 67.4 | 51.7 | 37.9 | 35.2 | 35.2 |
| Year Lowest Occurred | 1977 | 1989 | 1983 | 1984 | 1998 | 1983 | 1993 | 1983 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 33.2 | 37.1 | 41.4 | 46.5 | 53.4 | 60.5 | 67.4 | 66.7 | 60.8 | 51.6 | 40.9 | 33.0 | 49.4 |
| Highest Mean Temperature (F) | 39.8 | 45.8 | 48.3 | 53.3 | 59.4 | 66.5 | 70.8 | 70.4 | 66.9 | 57.1 | 48.9 | 38.9 | 70.8 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1987 | 1973 | 1977 | 1996 | 1986 | 1975 | 1978 | 1976 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 23.3 | 27.5 | 37.1 | 38.9 | 47.3 | 55.9 | 62.5 | 62.1 | 54.2 | 42.2 | 31.0 | 24.1 | 23.3 |
| Year Lowest Occurred | 1977 | 1989 | 1977 | 1975 | 1998 | 1980 | 1993 | 1985 | 1986 | 1984 | 1994 | 1990 | 1977 |
| Mean Min. Temperature (F) | 23.3 | 26.9 | 30.3 | 33.7 | 38.9 | 44.6 | 49.8 | 49.1 | 43.7 | 36.5 | 30.0 | 23.3 | 35.8 |
| Highest Mean Min. Temperature (F) | 33.7 | 34.4 | 36.7 | 38.7 | 44.1 | 49.6 | 53.8 | 53.0 | 47.9 | 42.9 | 35.5 | 32.4 | 53.8 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1990 | 1973 | 1977 | 1996 | 1986 | 1975 | 1979 | 1995 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 8.5 | 18.2 | 21.3 | 25.3 | 33.9 | 40.3 | 45.6 | 45.9 | 38.2 | 32.6 | 24.0 | 13.0 | 8.5 |
| Year Lowest Occurred | 1977 | 1982 | 1976 | 1976 | 1976 | 1976 | 1981 | 1985 | 1971 | 1971 | 1994 | 1990 | 1977 |
| Mean Precipitation (in.) | 1.97 | 1.84 | 1.90 | 1.22 | 1.58 | 1.00 | 0.37 | 0.43 | 0.87 | 1.16 | 1.82 | 1.72 | 15.88 |
| Highest Precipitation (in.) | 5.62 | 6.37 | 4.30 | 3.99 | 5.36 | 4.10 | 1.86 | 2.33 | 2.89 | 3.35 | 5.27 | 5.25 | 6.37 |
| Year Highest Occurred | 1996 | 1986 | 1974 | 1995 | 1998 | 1998 | 1987 | 1976 | 1985 | 1979 | 1981 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.02 | 0.34 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 | 0.02 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1984 | 1985 | 1976 | 1973 | 1993 | 2000 | 1999 | 1994 | 1992 | 1989 | 1985 |
| Heating Degree Days (F) | 986. | 782. | 732. | 556. | 366. | 175. | 39. | 48. | 165. | 423. | 723. | 993. | 5988. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 39. | 113. | 99. | 37. | 7. | 0. | 0. | 300. |