| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.3 | 45.2 | 55.1 | 63.6 | 72.7 | 84.2 | 89.6 | 87.9 | 79.5 | 67.7 | 50.5 | 39.4 | 64.4 |
| Highest Mean Max. Temperature (F) | 45.4 | 55.3 | 65.3 | 71.4 | 80.0 | 89.9 | 95.8 | 93.3 | 84.8 | 75.0 | 62.0 | 50.0 | 95.8 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 2000 | 2000 | 1994 | 2000 | 2000 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 26.0 | 37.9 | 49.6 | 56.3 | 65.2 | 78.3 | 85.6 | 85.3 | 72.6 | 57.3 | 43.7 | 28.2 | 26.0 |
| Year Lowest Occurred | 1979 | 1974 | 1975 | 1983 | 1995 | 1984 | 1992 | 1976 | 1986 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 23.5 | 30.8 | 39.8 | 46.9 | 55.8 | 65.0 | 71.0 | 69.6 | 60.8 | 49.4 | 35.9 | 25.6 | 47.8 |
| Highest Mean Temperature (F) | 31.5 | 39.9 | 45.5 | 52.5 | 61.1 | 69.3 | 75.4 | 74.0 | 66.7 | 54.1 | 41.8 | 35.0 | 75.4 |
| Year Highest Occurred | 1998 | 1995 | 1999 | 1992 | 2000 | 1988 | 1998 | 2000 | 1998 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 13.4 | 20.3 | 33.6 | 41.3 | 51.2 | 60.4 | 67.5 | 66.2 | 55.8 | 44.6 | 29.7 | 15.0 | 13.4 |
| Year Lowest Occurred | 1973 | 1974 | 1976 | 1975 | 1975 | 1975 | 1992 | 1975 | 1971 | 1984 | 2000 | 1978 | 1973 |
| Mean Min. Temperature (F) | 9.7 | 16.3 | 24.4 | 30.1 | 38.8 | 45.7 | 52.4 | 51.3 | 42.0 | 31.0 | 21.2 | 11.7 | 31.2 |
| Highest Mean Min. Temperature (F) | 19.6 | 24.5 | 28.3 | 34.8 | 45.2 | 50.8 | 57.4 | 56.4 | 48.8 | 37.9 | 25.0 | 19.9 | 57.4 |
| Year Highest Occurred | 1995 | 1995 | 1978 | 1989 | 1992 | 1988 | 1998 | 1983 | 1998 | 1972 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | -1.9 | 2.7 | 17.1 | 25.7 | 35.0 | 41.3 | 48.7 | 45.7 | 37.0 | 24.9 | 13.8 | 1.5 | -1.9 |
| Year Lowest Occurred | 1973 | 1974 | 1976 | 1975 | 1975 | 1975 | 1995 | 1975 | 1971 | 1976 | 1975 | 1972 | 1973 |
| Mean Precipitation (in.) | 0.96 | 0.90 | 1.06 | 1.11 | 1.18 | 0.87 | 1.04 | 1.03 | 1.21 | 1.31 | 1.02 | 1.06 | 12.75 |
| Highest Precipitation (in.) | 2.50 | 2.45 | 3.04 | 3.29 | 3.22 | 3.71 | 2.63 | 2.60 | 3.30 | 3.44 | 3.59 | 3.25 | 3.71 |
| Year Highest Occurred | 1980 | 1996 | 1985 | 1999 | 1979 | 1984 | 1989 | 1984 | 1986 | 1972 | 1985 | 1978 | 1984 |
| Lowest Precipitation (in.) | 0.13 | 0.05 | 0.16 | 0.08 | 0.00 | 0.00 | 0.02 | 0.10 | 0.07 | 0.14 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1994 | 1972 | 1972 | 1982 | 1974 | 1971 | 1994 | 1975 | 1979 | 1988 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1287. | 959. | 783. | 544. | 292. | 81. | 10. | 19. | 162. | 486. | 874. | 1223. | 6720. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 79. | 195. | 161. | 34. | 0. | 0. | 0. | 476. |