| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.5 | 48.3 | 56.0 | 64.6 | 73.9 | 85.5 | 91.2 | 88.8 | 80.9 | 68.5 | 53.3 | 44.1 | 66.5 |
| Highest Mean Max. Temperature (F) | 52.6 | 59.6 | 66.5 | 73.2 | 81.5 | 92.1 | 95.2 | 92.7 | 91.8 | 77.2 | 64.5 | 55.2 | 95.2 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 2000 | 2000 | 1974 | 1981 | 1996 | 1979 | 1999 | 1999 | 1981 | 1981 |
| Lowest Mean Max. Temperature (F) | 34.2 | 38.9 | 45.9 | 55.4 | 67.9 | 79.3 | 87.2 | 84.2 | 72.8 | 60.2 | 43.5 | 34.2 | 34.2 |
| Year Lowest Occurred | 1979 | 1993 | 1973 | 1975 | 1998 | 1998 | 1982 | 1983 | 1986 | 1972 | 1994 | 1990 | 1979 |
| Mean Temperature (F) | 28.8 | 34.3 | 40.6 | 47.1 | 55.7 | 65.3 | 72.0 | 70.2 | 62.2 | 50.2 | 37.7 | 29.6 | 49.5 |
| Highest Mean Temperature (F) | 36.8 | 41.9 | 46.1 | 53.5 | 61.7 | 69.7 | 75.5 | 73.5 | 68.5 | 56.2 | 43.8 | 38.1 | 75.5 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 2000 | 2000 | 1994 | 1996 | 1994 | 1979 | 1988 | 1999 | 1977 | 1996 |
| Lowest Mean Temperature (F) | 21.0 | 26.6 | 34.7 | 39.9 | 50.6 | 60.3 | 68.7 | 67.0 | 56.3 | 44.6 | 28.1 | 19.7 | 19.7 |
| Year Lowest Occurred | 1973 | 1989 | 1977 | 1975 | 1995 | 1998 | 1983 | 1976 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 15.0 | 20.3 | 25.1 | 29.6 | 37.5 | 45.1 | 52.8 | 51.6 | 43.4 | 31.9 | 22.0 | 15.1 | 32.5 |
| Highest Mean Min. Temperature (F) | 22.2 | 27.9 | 30.8 | 34.9 | 42.3 | 49.6 | 57.5 | 56.8 | 48.2 | 36.9 | 26.6 | 22.2 | 57.5 |
| Year Highest Occurred | 2000 | 1983 | 1978 | 1992 | 1992 | 1994 | 1996 | 1986 | 1997 | 1987 | 1987 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 7.1 | 12.9 | 13.7 | 24.3 | 32.3 | 38.3 | 48.0 | 46.3 | 38.2 | 25.5 | 12.6 | 5.2 | 5.2 |
| Year Lowest Occurred | 1989 | 1989 | 1977 | 1975 | 1995 | 1980 | 1995 | 1976 | 1973 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.88 | 0.96 | 1.18 | 0.78 | 0.81 | 0.37 | 1.14 | 1.22 | 1.06 | 1.22 | 0.82 | 0.50 | 10.94 |
| Highest Precipitation (in.) | 4.38 | 2.94 | 4.67 | 4.48 | 2.51 | 2.29 | 6.99 | 2.93 | 4.86 | 3.48 | 3.59 | 1.84 | 6.99 |
| Year Highest Occurred | 1993 | 1993 | 1992 | 1988 | 1977 | 1995 | 1984 | 1986 | 1997 | 1985 | 1994 | 1984 | 1984 |
| Lowest Precipitation (in.) | 0.03 | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1974 | 1984 | 1996 | 2000 | 1985 | 1993 | 1999 | 1995 | 2000 | 1972 |
| Heating Degree Days (F) | 1123. | 860. | 758. | 538. | 302. | 84. | 6. | 11. | 131. | 459. | 821. | 1099. | 6192. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 14. | 92. | 222. | 172. | 45. | 1. | 0. | 0. | 547. |