| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.1 | 46.6 | 54.4 | 62.2 | 71.9 | 83.0 | 88.9 | 86.9 | 78.3 | 66.8 | 51.3 | 43.7 | 64.7 |
| Highest Mean Max. Temperature (F) | 52.2 | 56.0 | 63.1 | 69.6 | 78.3 | 89.3 | 93.2 | 92.4 | 85.6 | 72.4 | 64.1 | 54.2 | 93.2 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1998 | 1994 | 2000 | 1995 | 1998 | 1995 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 29.1 | 31.5 | 47.4 | 54.2 | 61.7 | 76.8 | 84.4 | 82.4 | 71.5 | 56.7 | 40.2 | 27.8 | 27.8 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1984 | 1995 | 1983 | 1972 | 1992 | 1971 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.1 | 31.9 | 39.4 | 47.0 | 57.0 | 66.8 | 72.2 | 70.2 | 61.2 | 49.7 | 36.5 | 28.6 | 49.0 |
| Highest Mean Temperature (F) | 36.7 | 39.1 | 47.1 | 54.5 | 61.1 | 71.6 | 75.4 | 74.7 | 66.6 | 53.3 | 44.5 | 38.8 | 75.4 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1977 | 1977 | 1980 | 1983 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 15.9 | 17.6 | 35.0 | 40.5 | 50.8 | 62.1 | 68.8 | 66.1 | 56.2 | 42.9 | 28.3 | 16.2 | 15.9 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1997 | 1995 | 1998 | 1992 | 1992 | 1971 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 12.0 | 17.2 | 24.3 | 31.8 | 42.1 | 50.6 | 55.4 | 53.4 | 44.1 | 32.5 | 21.6 | 13.5 | 33.2 |
| Highest Mean Min. Temperature (F) | 21.2 | 24.0 | 31.1 | 39.3 | 45.9 | 55.6 | 58.2 | 58.5 | 48.5 | 36.6 | 26.8 | 23.3 | 58.5 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1987 | 1977 | 1985 | 1983 | 1981 | 1979 | 1998 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 2.6 | 3.6 | 19.4 | 24.4 | 38.0 | 44.6 | 50.9 | 49.8 | 38.2 | 27.9 | 14.6 | 4.5 | 2.6 |
| Year Lowest Occurred | 1979 | 1989 | 1998 | 1997 | 1999 | 1998 | 1994 | 1992 | 1999 | 1999 | 2000 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.42 | 0.37 | 1.21 | 2.01 | 2.41 | 1.64 | 1.11 | 1.39 | 1.38 | 0.81 | 0.83 | 0.57 | 14.15 |
| Highest Precipitation (in.) | 1.35 | 1.45 | 4.69 | 5.15 | 7.00 | 4.27 | 3.00 | 4.77 | 3.83 | 2.79 | 2.46 | 1.73 | 7.00 |
| Year Highest Occurred | 1996 | 1987 | 1983 | 1999 | 1995 | 1995 | 1999 | 1992 | 1971 | 1984 | 1983 | 1987 | 1995 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.11 | 0.10 | 0.08 | 0.01 | 0.06 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1983 | 1992 | 1989 | 1982 | 1974 | 1971 | 1989 | 1971 | 1992 | 1995 | 1976 | 1991 | 1992 |
| Heating Degree Days (F) | 1177. | 927. | 796. | 539. | 262. | 62. | 3. | 18. | 168. | 477. | 858. | 1128. | 6415. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 116. | 224. | 178. | 55. | 0. | 0. | 0. | 587. |