| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.0 | 42.3 | 51.4 | 60.7 | 69.0 | 79.1 | 87.6 | 86.8 | 76.2 | 63.5 | 46.4 | 37.0 | 61.3 |
| Highest Mean Max. Temperature (F) | 44.6 | 52.5 | 60.7 | 71.9 | 78.7 | 86.3 | 93.8 | 91.4 | 83.5 | 73.0 | 56.9 | 43.6 | 93.8 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1987 | 1992 | 1988 | 1998 | 1971 | 1990 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Max. Temperature (F) | 24.5 | 32.1 | 44.4 | 50.4 | 61.6 | 72.1 | 77.5 | 80.7 | 67.8 | 55.7 | 36.9 | 28.6 | 24.5 |
| Year Lowest Occurred | 1979 | 1993 | 1985 | 1975 | 1977 | 1993 | 1993 | 1980 | 1986 | 1984 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 26.5 | 32.0 | 39.2 | 46.3 | 53.9 | 61.7 | 68.8 | 67.7 | 58.2 | 47.8 | 35.2 | 26.9 | 47.0 |
| Highest Mean Temperature (F) | 36.1 | 38.8 | 45.6 | 52.8 | 59.4 | 67.2 | 73.0 | 71.9 | 64.4 | 54.7 | 43.2 | 34.2 | 73.0 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1987 | 1992 | 1988 | 1985 | 1971 | 1998 | 1988 | 1995 | 1977 | 1985 |
| Lowest Mean Temperature (F) | 14.3 | 21.3 | 32.6 | 39.1 | 49.5 | 56.8 | 60.8 | 62.8 | 52.9 | 43.1 | 26.5 | 16.8 | 14.3 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1975 | 1993 | 1993 | 1980 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 16.9 | 21.6 | 27.0 | 31.9 | 38.7 | 44.3 | 49.9 | 48.5 | 40.1 | 32.0 | 23.9 | 16.7 | 32.6 |
| Highest Mean Min. Temperature (F) | 27.7 | 28.9 | 32.2 | 36.4 | 42.8 | 49.1 | 54.7 | 53.8 | 47.5 | 36.3 | 31.8 | 27.6 | 54.7 |
| Year Highest Occurred | 1998 | 1986 | 1986 | 1990 | 1987 | 1977 | 1975 | 1984 | 1998 | 1988 | 1995 | 1977 | 1975 |
| Lowest Mean Min. Temperature (F) | 4.1 | 9.6 | 20.8 | 27.1 | 35.0 | 41.3 | 44.1 | 44.4 | 36.9 | 29.4 | 14.4 | 4.5 | 4.1 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1982 | 1975 | 1980 | 1993 | 1978 | 1996 | 1985 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 0.79 | 0.64 | 0.98 | 1.11 | 1.70 | 1.18 | 0.92 | 0.87 | 0.88 | 0.79 | 0.75 | 0.65 | 11.26 |
| Highest Precipitation (in.) | 3.05 | 2.38 | 2.51 | 2.70 | 4.17 | 3.01 | 2.74 | 2.54 | 3.52 | 2.34 | 1.88 | 2.29 | 4.17 |
| Year Highest Occurred | 1980 | 1986 | 1983 | 1991 | 1980 | 1993 | 1982 | 1979 | 1982 | 1972 | 1973 | 1981 | 1980 |
| Lowest Precipitation (in.) | 0.01 | 0.08 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1977 | 1990 | 1994 | 1977 | 1974 | 1994 | 1990 | 1996 | 1988 | 1988 | 1993 | 1976 | 1994 |
| Heating Degree Days (F) | 1196. | 927. | 800. | 561. | 351. | 146. | 35. | 51. | 228. | 536. | 896. | 1183. | 6910. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 46. | 150. | 132. | 23. | 0. | 0. | 0. | 355. |