| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.1 | 42.5 | 53.9 | 63.3 | 72.3 | 80.9 | 89.7 | 89.0 | 78.8 | 64.4 | 45.4 | 34.5 | 62.4 |
| Highest Mean Max. Temperature (F) | 41.6 | 52.0 | 64.3 | 71.7 | 81.2 | 87.3 | 94.7 | 93.5 | 87.4 | 73.5 | 53.0 | 39.9 | 94.7 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1994 | 2000 | 1990 | 1988 | 1999 | 1989 | 1994 |
| Lowest Mean Max. Temperature (F) | 23.2 | 29.6 | 45.8 | 53.8 | 65.5 | 76.1 | 79.6 | 81.8 | 68.3 | 58.0 | 33.4 | 19.2 | 19.2 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1993 | 1993 | 1976 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 24.6 | 31.4 | 40.1 | 47.2 | 55.2 | 63.0 | 70.3 | 68.8 | 59.4 | 47.5 | 34.6 | 25.3 | 47.3 |
| Highest Mean Temperature (F) | 32.4 | 39.3 | 46.6 | 52.8 | 61.1 | 68.2 | 74.7 | 73.1 | 65.7 | 54.1 | 40.9 | 32.0 | 74.7 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1990 | 1992 | 1977 | 1985 | 1986 | 1990 | 1988 | 1995 | 1977 | 1985 |
| Lowest Mean Temperature (F) | 10.7 | 17.8 | 31.9 | 40.7 | 50.4 | 58.5 | 63.0 | 64.2 | 53.6 | 44.3 | 24.6 | 9.4 | 9.4 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1981 | 1993 | 1976 | 1985 | 1981 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 15.1 | 20.2 | 26.3 | 31.1 | 38.1 | 45.0 | 50.9 | 48.6 | 39.9 | 30.6 | 23.7 | 16.1 | 32.1 |
| Highest Mean Min. Temperature (F) | 24.0 | 27.5 | 30.8 | 35.7 | 43.4 | 50.9 | 56.0 | 53.9 | 46.8 | 34.6 | 32.3 | 25.4 | 56.0 |
| Year Highest Occurred | 1978 | 2000 | 1986 | 1990 | 1993 | 1988 | 1985 | 1986 | 1998 | 1988 | 1998 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | -1.9 | 6.0 | 17.2 | 26.9 | 33.4 | 39.9 | 44.5 | 43.7 | 34.6 | 22.7 | 14.1 | -0.3 | -1.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1973 | 1982 | 1981 | 1981 | 1978 | 1971 | 1978 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 2.65 | 2.34 | 2.35 | 1.92 | 1.47 | 1.15 | 0.53 | 0.50 | 0.88 | 1.17 | 2.92 | 2.87 | 20.75 |
| Highest Precipitation (in.) | 4.51 | 6.08 | 4.34 | 4.14 | 3.42 | 2.71 | 2.24 | 2.21 | 2.80 | 3.21 | 6.73 | 7.67 | 7.67 |
| Year Highest Occurred | 1980 | 1986 | 1989 | 1978 | 1998 | 1971 | 1982 | 1976 | 1986 | 1975 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.22 | 0.61 | 0.51 | 0.29 | 0.22 | 0.35 | 0.05 | 0.00 | 0.00 | 0.00 | 0.04 | 0.14 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1992 | 1977 | 1974 | 1985 | 1979 | 1971 | 1987 | 1988 | 1976 | 1976 | 1971 |
| Heating Degree Days (F) | 1254. | 942. | 772. | 534. | 310. | 126. | 29. | 40. | 209. | 544. | 913. | 1231. | 6904. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 65. | 194. | 159. | 39. | 0. | 0. | 0. | 463. |