| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.8 | 39.8 | 46.1 | 54.5 | 63.5 | 71.3 | 79.7 | 81.0 | 70.5 | 58.0 | 41.3 | 33.9 | 56.2 |
| Highest Mean Max. Temperature (F) | 41.4 | 45.7 | 56.1 | 65.3 | 70.6 | 78.9 | 88.8 | 88.0 | 80.7 | 68.1 | 48.7 | 40.0 | 88.8 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 26.0 | 34.1 | 39.4 | 46.6 | 55.6 | 65.2 | 66.5 | 73.7 | 62.1 | 51.1 | 30.0 | 27.0 | 26.0 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1978 | 1975 | 1993 | 1995 | 1985 | 1995 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 26.6 | 30.0 | 35.4 | 42.0 | 49.4 | 56.5 | 62.3 | 62.5 | 53.5 | 43.9 | 33.1 | 26.4 | 43.5 |
| Highest Mean Temperature (F) | 32.8 | 35.5 | 41.2 | 49.0 | 54.3 | 62.9 | 67.9 | 67.4 | 59.9 | 51.6 | 39.3 | 31.7 | 67.9 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1993 | 1986 | 1975 | 1986 | 1990 | 1988 | 1999 | 1979 | 1975 |
| Lowest Mean Temperature (F) | 14.3 | 20.8 | 30.0 | 36.0 | 44.5 | 52.1 | 55.4 | 57.4 | 46.6 | 39.6 | 22.5 | 17.1 | 14.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1978 | 1976 | 1993 | 1995 | 1971 | 1971 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 18.3 | 20.2 | 24.7 | 29.4 | 35.3 | 41.7 | 44.9 | 43.9 | 36.5 | 29.8 | 24.9 | 18.9 | 30.7 |
| Highest Mean Min. Temperature (F) | 26.1 | 26.3 | 30.9 | 32.7 | 40.0 | 47.0 | 51.8 | 48.5 | 43.5 | 35.2 | 30.7 | 26.8 | 51.8 |
| Year Highest Occurred | 1999 | 1998 | 1986 | 1987 | 1987 | 1986 | 1998 | 1999 | 1998 | 1988 | 1998 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 2.6 | 6.8 | 18.9 | 25.4 | 31.0 | 38.3 | 41.6 | 38.3 | 29.2 | 24.3 | 14.9 | 7.1 | 2.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1984 | 1979 | 1981 | 1988 | 1971 | 1971 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 4.93 | 3.93 | 3.40 | 3.09 | 3.36 | 2.59 | 1.49 | 1.34 | 1.78 | 2.60 | 5.00 | 4.93 | 38.44 |
| Highest Precipitation (in.) | 9.98 | 8.47 | 7.65 | 7.30 | 7.32 | 6.35 | 4.20 | 4.18 | 4.99 | 5.72 | 10.55 | 12.12 | 12.12 |
| Year Highest Occurred | 1974 | 1972 | 1997 | 1996 | 1998 | 1981 | 1997 | 1976 | 1985 | 1995 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.93 | 1.52 | 0.92 | 0.22 | 1.23 | 0.28 | 0.00 | 0.00 | 0.09 | 0.00 | 1.73 | 0.57 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1977 | 1992 | 1986 | 1985 | 1986 | 1999 | 1978 | 1976 | 1985 | 1985 |
| Heating Degree Days (F) | 1192. | 980. | 918. | 692. | 484. | 267. | 134. | 133. | 355. | 655. | 957. | 1197. | 7964. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 50. | 54. | 10. | 0. | 0. | 0. | 126. |