| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.2 | 47.7 | 57.8 | 66.6 | 76.6 | 88.5 | 94.2 | 91.6 | 82.6 | 69.5 | 52.4 | 41.4 | 67.3 |
| Highest Mean Max. Temperature (F) | 52.1 | 55.9 | 66.0 | 75.3 | 82.6 | 95.7 | 99.2 | 96.2 | 90.9 | 75.8 | 59.5 | 53.6 | 99.2 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1984 | 1977 | 1988 | 1985 | 1979 | 1987 | 1999 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 27.2 | 36.5 | 49.8 | 56.1 | 66.7 | 81.4 | 88.6 | 84.8 | 75.9 | 61.1 | 44.2 | 32.2 | 27.2 |
| Year Lowest Occurred | 1973 | 1974 | 1975 | 1975 | 1975 | 1995 | 1995 | 1999 | 1996 | 1984 | 2000 | 1978 | 1973 |
| Mean Temperature (F) | 28.3 | 36.1 | 45.1 | 52.9 | 62.2 | 72.6 | 78.5 | 76.4 | 67.5 | 55.4 | 40.8 | 30.7 | 53.9 |
| Highest Mean Temperature (F) | 38.4 | 44.7 | 51.8 | 60.0 | 66.5 | 77.1 | 80.9 | 78.8 | 72.7 | 60.1 | 46.3 | 41.0 | 80.9 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1992 | 1984 | 1977 | 1988 | 1985 | 1979 | 1987 | 1999 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 16.6 | 22.4 | 38.0 | 43.5 | 53.8 | 67.4 | 75.5 | 73.2 | 63.0 | 49.1 | 34.7 | 20.4 | 16.6 |
| Year Lowest Occurred | 1973 | 1974 | 1975 | 1975 | 1975 | 1975 | 1995 | 1993 | 1986 | 1984 | 2000 | 1978 | 1973 |
| Mean Min. Temperature (F) | 17.4 | 24.5 | 32.4 | 39.1 | 47.8 | 56.6 | 62.7 | 61.1 | 52.4 | 41.2 | 29.2 | 20.0 | 40.4 |
| Highest Mean Min. Temperature (F) | 25.3 | 33.4 | 38.0 | 44.7 | 52.2 | 61.6 | 66.5 | 64.7 | 58.6 | 45.5 | 33.0 | 28.3 | 66.5 |
| Year Highest Occurred | 1995 | 1995 | 1986 | 1992 | 2000 | 1994 | 1996 | 2000 | 1990 | 1972 | 1999 | 1980 | 1996 |
| Lowest Mean Min. Temperature (F) | 5.9 | 8.2 | 26.3 | 30.9 | 41.0 | 50.2 | 59.6 | 55.3 | 45.9 | 36.8 | 23.1 | 8.5 | 5.9 |
| Year Lowest Occurred | 1988 | 1974 | 1975 | 1975 | 1975 | 1975 | 1979 | 1976 | 1988 | 1982 | 1979 | 1978 | 1988 |
| Mean Precipitation (in.) | 0.58 | 0.56 | 1.14 | 1.12 | 1.21 | 0.70 | 0.76 | 0.80 | 1.05 | 1.27 | 0.94 | 0.59 | 10.72 |
| Highest Precipitation (in.) | 1.39 | 1.90 | 2.32 | 2.64 | 2.97 | 3.00 | 1.69 | 1.94 | 3.66 | 3.43 | 2.76 | 2.16 | 3.66 |
| Year Highest Occurred | 2000 | 1989 | 1983 | 1997 | 1995 | 1983 | 1985 | 1999 | 1997 | 1984 | 1983 | 1983 | 1997 |
| Lowest Precipitation (in.) | 0.13 | 0.00 | 0.01 | 0.07 | 0.00 | 0.00 | 0.00 | 0.03 | 0.03 | 0.03 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1972 | 1972 | 1982 | 1974 | 1980 | 1994 | 1985 | 1979 | 1999 | 1989 | 1976 | 1972 |
| Heating Degree Days (F) | 1139. | 810. | 617. | 377. | 146. | 18. | 0. | 0. | 54. | 311. | 726. | 1064. | 5262. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 58. | 244. | 416. | 352. | 130. | 11. | 0. | 0. | 1224. |