| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.7 | 44.9 | 55.3 | 65.0 | 74.1 | 83.5 | 94.1 | 93.7 | 82.1 | 67.5 | 49.1 | 39.3 | 65.5 |
| Highest Mean Max. Temperature (F) | 43.8 | 53.3 | 66.1 | 75.3 | 84.3 | 92.1 | 101.3 | 101.9 | 91.5 | 78.2 | 55.1 | 44.2 | 101.9 |
| Year Highest Occurred | 1990 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1976 | 1989 | 1971 |
| Lowest Mean Max. Temperature (F) | 25.0 | 33.8 | 49.1 | 54.8 | 67.7 | 77.7 | 81.8 | 85.1 | 73.2 | 62.6 | 38.5 | 31.5 | 25.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1998 | 1993 | 1976 | 1985 | 1981 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 30.5 | 36.0 | 44.7 | 52.9 | 61.1 | 69.5 | 78.0 | 77.7 | 67.4 | 55.0 | 41.0 | 32.3 | 53.8 |
| Highest Mean Temperature (F) | 37.0 | 43.6 | 52.4 | 59.8 | 68.5 | 75.8 | 84.3 | 83.9 | 75.2 | 64.2 | 47.1 | 36.2 | 84.3 |
| Year Highest Occurred | 1990 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1989 | 1985 |
| Lowest Mean Temperature (F) | 16.1 | 24.4 | 37.9 | 44.6 | 55.1 | 64.1 | 68.5 | 69.8 | 61.0 | 51.6 | 31.6 | 22.9 | 16.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1993 | 1976 | 1985 | 1985 | 1985 | 1978 | 1979 |
| Mean Min. Temperature (F) | 23.3 | 27.0 | 34.0 | 40.7 | 48.0 | 55.5 | 61.9 | 61.7 | 52.7 | 42.4 | 32.8 | 25.2 | 42.1 |
| Highest Mean Min. Temperature (F) | 31.2 | 34.1 | 39.4 | 46.2 | 53.1 | 60.1 | 67.9 | 66.1 | 61.4 | 50.2 | 40.1 | 30.6 | 67.9 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1980 | 1993 | 1992 | 1998 | 1998 | 1998 | 1988 | 1999 | 1999 | 1998 |
| Lowest Mean Min. Temperature (F) | 7.1 | 14.9 | 26.6 | 34.4 | 42.5 | 49.5 | 55.1 | 54.4 | 47.1 | 38.0 | 24.6 | 13.1 | 7.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1993 | 1976 | 1983 | 1978 | 1985 | 1978 | 1979 |
| Mean Precipitation (in.) | 2.10 | 1.67 | 1.80 | 1.55 | 1.86 | 1.29 | 0.58 | 0.60 | 0.80 | 1.04 | 1.91 | 2.21 | 17.41 |
| Highest Precipitation (in.) | 3.21 | 3.75 | 4.24 | 4.21 | 7.32 | 3.49 | 1.95 | 2.26 | 3.19 | 2.64 | 3.75 | 5.86 | 7.32 |
| Year Highest Occurred | 1976 | 1986 | 1983 | 1978 | 1998 | 1993 | 1993 | 1975 | 1980 | 1990 | 1973 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.32 | 0.59 | 0.06 | 0.15 | 0.14 | 0.12 | 0.01 | 0.00 | 0.00 | 0.00 | 0.05 | 0.10 | 0.00 |
| Year Lowest Occurred | 1985 | 1977 | 1994 | 1977 | 1974 | 1973 | 2000 | 1998 | 1999 | 1978 | 1976 | 1976 | 1998 |
| Heating Degree Days (F) | 1070. | 813. | 631. | 378. | 180. | 50. | 7. | 11. | 82. | 322. | 723. | 1016. | 5283. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 58. | 184. | 411. | 403. | 154. | 10. | 0. | 0. | 1232. |