| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 31.1 | 37.8 | 48.6 | 58.5 | 68.0 | 79.2 | 88.3 | 87.2 | 77.0 | 63.5 | 45.4 | 33.6 | 59.9 |
| Highest Mean Max. Temperature (F) | 39.7 | 49.5 | 57.1 | 68.4 | 76.9 | 86.0 | 93.6 | 92.1 | 83.8 | 73.7 | 56.9 | 42.3 | 93.6 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1987 | 1992 | 1988 | 2000 | 2000 | 1990 | 1988 | 1999 | 1976 | 2000 |
| Lowest Mean Max. Temperature (F) | 23.0 | 27.5 | 38.0 | 49.3 | 62.7 | 70.7 | 79.0 | 82.3 | 67.5 | 54.6 | 37.4 | 22.7 | 22.7 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1980 | 1998 | 1993 | 1993 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 20.8 | 25.8 | 35.6 | 43.2 | 52.1 | 60.8 | 68.0 | 66.7 | 57.2 | 45.8 | 32.8 | 22.7 | 44.3 |
| Highest Mean Temperature (F) | 30.1 | 35.7 | 41.2 | 49.0 | 57.0 | 66.3 | 72.4 | 71.9 | 63.7 | 51.9 | 38.9 | 30.3 | 72.4 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 2000 | 1992 | 1988 | 1998 | 2000 | 1990 | 1988 | 1999 | 1995 | 1998 |
| Lowest Mean Temperature (F) | 10.4 | 12.7 | 24.3 | 37.1 | 47.1 | 56.6 | 59.6 | 62.7 | 52.3 | 40.7 | 26.9 | 12.0 | 10.4 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1998 | 1993 | 1993 | 1986 | 1984 | 1994 | 1985 | 1989 |
| Mean Min. Temperature (F) | 10.4 | 13.7 | 22.5 | 27.9 | 36.1 | 42.3 | 47.7 | 46.2 | 37.3 | 28.1 | 20.2 | 11.8 | 28.7 |
| Highest Mean Min. Temperature (F) | 21.3 | 23.2 | 27.4 | 32.7 | 39.4 | 47.2 | 51.8 | 51.6 | 44.0 | 34.7 | 25.1 | 21.2 | 51.8 |
| Year Highest Occurred | 1978 | 1998 | 1978 | 2000 | 1987 | 1972 | 1998 | 2000 | 1998 | 1972 | 1998 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | -2.4 | -2.1 | 10.6 | 23.9 | 31.3 | 38.8 | 40.2 | 40.8 | 31.8 | 23.8 | 11.8 | -1.8 | -2.4 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1982 | 1975 | 1978 | 1993 | 1974 | 1974 | 1995 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.28 | 1.10 | 1.20 | 1.25 | 2.01 | 1.13 | 1.08 | 0.95 | 1.09 | 1.24 | 1.03 | 1.05 | 14.41 |
| Highest Precipitation (in.) | 3.51 | 3.12 | 3.18 | 3.10 | 5.59 | 3.14 | 4.22 | 2.86 | 3.94 | 3.13 | 2.90 | 3.76 | 5.59 |
| Year Highest Occurred | 1997 | 1986 | 1982 | 1971 | 1980 | 1972 | 1984 | 1983 | 1973 | 2000 | 1983 | 1983 | 1980 |
| Lowest Precipitation (in.) | 0.19 | 0.14 | 0.29 | 0.07 | 0.34 | 0.10 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1977 | 1987 | 1992 | 2000 | 1999 | 1985 | 1974 | 1978 | 1976 | 1976 | 1999 |
| Heating Degree Days (F) | 1372. | 1099. | 913. | 654. | 403. | 165. | 40. | 58. | 248. | 595. | 966. | 1312. | 7825. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 37. | 134. | 110. | 14. | 0. | 0. | 0. | 296. |