| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.1 | 42.1 | 44.4 | 49.9 | 57.9 | 68.2 | 75.6 | 75.0 | 68.3 | 58.2 | 45.6 | 38.7 | 55.3 |
| Highest Mean Max. Temperature (F) | 44.8 | 51.8 | 52.8 | 57.8 | 65.3 | 73.8 | 79.9 | 79.2 | 74.3 | 65.8 | 55.9 | 44.5 | 79.9 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 1989 | 1992 | 1981 | 1972 | 1981 | 1974 | 1988 | 1995 | 1976 | 1972 |
| Lowest Mean Max. Temperature (F) | 34.8 | 33.3 | 35.3 | 39.1 | 46.3 | 59.4 | 69.9 | 67.5 | 58.9 | 50.5 | 37.5 | 31.6 | 31.6 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1985 | 1984 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 27.2 | 29.4 | 32.5 | 37.5 | 44.8 | 53.4 | 59.8 | 59.0 | 53.0 | 44.1 | 33.7 | 27.3 | 41.8 |
| Highest Mean Temperature (F) | 34.1 | 37.0 | 38.7 | 44.0 | 51.8 | 58.2 | 62.8 | 62.2 | 57.3 | 49.7 | 41.6 | 33.7 | 62.8 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 1989 | 1992 | 1981 | 1996 | 1971 | 1974 | 1988 | 1995 | 1977 | 1996 |
| Lowest Mean Temperature (F) | 21.8 | 24.0 | 25.2 | 27.8 | 36.4 | 47.0 | 55.5 | 52.9 | 46.0 | 38.6 | 26.4 | 19.0 | 19.0 |
| Year Lowest Occurred | 1973 | 1990 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 15.3 | 16.7 | 20.6 | 25.0 | 31.7 | 38.6 | 43.9 | 43.0 | 37.7 | 29.9 | 21.8 | 15.9 | 28.3 |
| Highest Mean Min. Temperature (F) | 23.3 | 22.1 | 24.7 | 30.2 | 38.3 | 42.9 | 48.2 | 46.5 | 42.3 | 34.2 | 27.3 | 23.7 | 48.2 |
| Year Highest Occurred | 1986 | 1995 | 1984 | 1989 | 1992 | 2000 | 1996 | 1984 | 1984 | 1987 | 1995 | 1977 | 1996 |
| Lowest Mean Min. Temperature (F) | 8.4 | 10.6 | 15.0 | 16.5 | 26.4 | 33.9 | 39.8 | 38.3 | 32.9 | 24.4 | 15.3 | 6.4 | 6.4 |
| Year Lowest Occurred | 1989 | 1990 | 1977 | 1975 | 1998 | 1980 | 1983 | 1979 | 1986 | 1971 | 1994 | 1971 | 1971 |
| Mean Precipitation (in.) | 8.60 | 8.71 | 7.66 | 3.06 | 1.34 | 0.66 | 0.47 | 0.34 | 1.51 | 2.02 | 4.38 | 5.99 | 44.74 |
| Highest Precipitation (in.) | 29.11 | 31.64 | 26.37 | 14.91 | 4.84 | 4.95 | 3.21 | 2.15 | 7.90 | 6.54 | 14.47 | 18.34 | 31.64 |
| Year Highest Occurred | 1980 | 1986 | 1991 | 1982 | 1998 | 1998 | 1992 | 1983 | 1976 | 2000 | 1983 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.03 | 0.49 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1972 | 1992 | 1984 | 1994 | 2000 | 1997 | 1993 | 1995 | 1992 | 1989 | 1972 |
| Heating Degree Days (F) | 1172. | 997. | 993. | 828. | 626. | 351. | 176. | 197. | 362. | 650. | 939. | 1169. | 8460. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 3. | 14. | 12. | 2. | 0. | 0. | 0. | 31. |