| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.9 | 52.3 | 56.9 | 61.2 | 67.1 | 73.2 | 81.2 | 82.3 | 76.9 | 65.9 | 53.0 | 46.7 | 63.7 |
| Highest Mean Max. Temperature (F) | 52.4 | 58.5 | 63.8 | 68.1 | 76.3 | 79.2 | 87.6 | 87.6 | 84.8 | 75.0 | 57.3 | 51.6 | 87.6 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1987 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1976 | 1980 | 1986 |
| Lowest Mean Max. Temperature (F) | 41.2 | 46.0 | 50.7 | 55.0 | 61.0 | 67.4 | 72.8 | 76.0 | 69.3 | 59.1 | 44.5 | 40.5 | 40.5 |
| Year Lowest Occurred | 1979 | 1979 | 1971 | 1975 | 1977 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1990 | 1990 |
| Mean Temperature (F) | 40.7 | 43.7 | 46.8 | 50.3 | 55.4 | 60.6 | 66.0 | 66.3 | 62.0 | 54.1 | 45.5 | 40.3 | 52.6 |
| Highest Mean Temperature (F) | 44.6 | 48.8 | 51.1 | 54.7 | 60.7 | 64.8 | 69.4 | 69.6 | 65.7 | 57.9 | 49.6 | 44.3 | 69.6 |
| Year Highest Occurred | 1995 | 1992 | 1986 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1988 | 1995 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 33.8 | 36.4 | 42.1 | 45.0 | 51.5 | 56.8 | 61.3 | 63.2 | 57.6 | 50.7 | 38.5 | 33.7 | 33.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1993 | 1975 | 1985 | 1971 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 33.5 | 35.0 | 36.7 | 39.4 | 43.6 | 47.9 | 50.7 | 50.3 | 47.0 | 42.2 | 38.0 | 33.8 | 41.5 |
| Highest Mean Min. Temperature (F) | 38.5 | 39.1 | 40.3 | 42.8 | 46.4 | 50.8 | 54.0 | 53.7 | 51.1 | 46.6 | 42.4 | 38.6 | 54.0 |
| Year Highest Occurred | 1998 | 1992 | 1983 | 1992 | 1993 | 1986 | 1998 | 1977 | 1995 | 1988 | 1995 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 26.4 | 26.6 | 33.3 | 35.0 | 40.6 | 44.1 | 48.5 | 46.4 | 43.3 | 38.4 | 30.7 | 26.8 | 26.4 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1982 | 1976 | 1977 | 1980 | 1999 | 1974 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 8.87 | 7.78 | 7.31 | 5.88 | 4.25 | 2.68 | 0.86 | 1.14 | 2.48 | 4.95 | 10.57 | 9.91 | 66.68 |
| Highest Precipitation (in.) | 15.60 | 15.51 | 13.64 | 11.02 | 8.56 | 8.21 | 3.35 | 3.76 | 8.45 | 10.34 | 21.59 | 24.24 | 24.24 |
| Year Highest Occurred | 1996 | 1986 | 1989 | 1993 | 1998 | 1984 | 1987 | 1989 | 1986 | 1996 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.90 | 2.71 | 1.76 | 2.49 | 0.56 | 0.90 | 0.00 | 0.00 | 0.00 | 0.16 | 2.89 | 2.02 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 1992 | 1977 | 1992 | 1986 | 1973 | 1998 | 1993 | 1987 | 1976 | 1976 | 1973 |
| Heating Degree Days (F) | 753. | 599. | 565. | 440. | 302. | 152. | 54. | 41. | 124. | 341. | 586. | 768. | 4725. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 18. | 83. | 81. | 31. | 1. | 0. | 0. | 216. |