| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.4 | 45.1 | 52.6 | 61.9 | 71.0 | 82.1 | 87.5 | 85.7 | 76.9 | 65.2 | 49.2 | 41.6 | 63.2 |
| Highest Mean Max. Temperature (F) | 47.8 | 56.0 | 62.4 | 69.8 | 76.6 | 86.3 | 93.9 | 94.4 | 83.7 | 70.1 | 64.6 | 50.2 | 94.4 |
| Year Highest Occurred | 1999 | 1999 | 1972 | 1981 | 1994 | 1988 | 1974 | 2000 | 1998 | 1975 | 1999 | 1999 | 2000 |
| Lowest Mean Max. Temperature (F) | 26.1 | 31.8 | 45.3 | 53.0 | 59.5 | 75.3 | 80.3 | 78.4 | 70.7 | 58.3 | 33.9 | 21.7 | 21.7 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1984 | 1995 | 1992 | 1992 | 1992 | 1993 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 26.9 | 32.0 | 39.2 | 48.6 | 58.5 | 69.4 | 74.5 | 72.7 | 63.3 | 51.0 | 36.7 | 29.0 | 50.2 |
| Highest Mean Temperature (F) | 35.4 | 39.0 | 45.5 | 56.0 | 62.8 | 72.7 | 78.2 | 78.8 | 69.3 | 54.0 | 46.5 | 35.7 | 78.8 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1994 | 1988 | 1974 | 2000 | 1998 | 1974 | 1999 | 1999 | 2000 |
| Lowest Mean Temperature (F) | 14.1 | 21.8 | 33.7 | 43.1 | 50.9 | 64.6 | 69.3 | 67.1 | 58.4 | 45.7 | 26.8 | 13.7 | 13.7 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1984 | 1995 | 1989 | 1992 | 1992 | 1993 | 1976 | 1985 | 1983 | 1983 |
| Mean Min. Temperature (F) | 14.4 | 18.8 | 25.8 | 35.2 | 46.0 | 56.6 | 61.5 | 59.7 | 49.7 | 36.8 | 24.2 | 16.3 | 37.1 |
| Highest Mean Min. Temperature (F) | 23.3 | 27.0 | 31.6 | 42.2 | 49.9 | 60.2 | 64.2 | 65.6 | 54.8 | 41.7 | 29.7 | 23.8 | 65.6 |
| Year Highest Occurred | 1986 | 1992 | 1986 | 1981 | 1987 | 1986 | 1985 | 1983 | 1998 | 1986 | 1998 | 1979 | 1983 |
| Lowest Mean Min. Temperature (F) | 2.2 | 10.0 | 19.5 | 30.3 | 42.1 | 52.2 | 58.2 | 55.8 | 46.0 | 30.3 | 17.1 | 5.6 | 2.2 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1983 | 1998 | 1994 | 1992 | 1993 | 1976 | 2000 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.50 | 0.50 | 1.30 | 1.77 | 3.39 | 2.86 | 2.63 | 2.15 | 1.09 | 0.88 | 0.74 | 0.37 | 18.18 |
| Highest Precipitation (in.) | 1.38 | 1.65 | 4.49 | 4.14 | 6.64 | 8.22 | 6.51 | 5.69 | 3.20 | 3.19 | 2.76 | 1.19 | 8.22 |
| Year Highest Occurred | 1990 | 1987 | 1981 | 1977 | 1987 | 1982 | 1998 | 1996 | 1996 | 1997 | 1972 | 1982 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.10 | 0.20 | 0.23 | 0.36 | 0.44 | 0.33 | 0.11 | 0.00 | 0.06 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1996 | 1998 | 1992 | 2000 | 1990 | 1999 | 1991 | 1978 | 1988 | 1997 | 1980 | 1998 |
| Heating Degree Days (F) | 1181. | 926. | 800. | 495. | 225. | 37. | 4. | 12. | 113. | 434. | 849. | 1118. | 6194. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 24. | 166. | 298. | 250. | 63. | 0. | 0. | 0. | 801. |