| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.3 | 40.1 | 44.1 | 50.1 | 60.8 | 67.6 | 75.6 | 77.0 | 70.4 | 58.5 | 42.1 | 36.4 | 55.0 |
| Highest Mean Max. Temperature (F) | 43.7 | 50.6 | 55.2 | 63.3 | 74.8 | 80.1 | 82.6 | 85.3 | 80.3 | 70.9 | 48.6 | 41.6 | 85.3 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1987 | 1992 | 1987 | 1994 | 1986 | 1991 | 1988 | 1976 | 1989 | 1986 |
| Lowest Mean Max. Temperature (F) | 30.9 | 29.9 | 37.6 | 42.9 | 52.9 | 61.0 | 66.5 | 70.3 | 62.1 | 50.3 | 33.9 | 29.8 | 29.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1983 | 1976 | 1985 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 29.5 | 31.6 | 34.5 | 39.6 | 47.7 | 53.6 | 59.8 | 60.1 | 54.5 | 46.0 | 35.3 | 29.9 | 43.5 |
| Highest Mean Temperature (F) | 33.8 | 39.1 | 41.7 | 47.0 | 55.9 | 60.9 | 63.7 | 66.2 | 58.7 | 54.6 | 40.5 | 33.7 | 66.2 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1987 | 1985 | 1991 | 1991 | 1988 | 1995 | 1991 | 1991 |
| Lowest Mean Temperature (F) | 23.1 | 20.5 | 29.6 | 33.8 | 42.7 | 50.0 | 53.3 | 55.5 | 49.1 | 41.9 | 28.2 | 21.1 | 20.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1995 | 1985 | 1984 | 1985 | 1990 | 1989 |
| Mean Min. Temperature (F) | 21.7 | 23.0 | 24.8 | 29.1 | 34.6 | 39.5 | 44.0 | 43.2 | 38.5 | 33.4 | 28.4 | 23.3 | 32.0 |
| Highest Mean Min. Temperature (F) | 27.9 | 29.4 | 28.8 | 32.6 | 37.8 | 43.1 | 48.5 | 47.4 | 42.1 | 38.3 | 33.5 | 28.9 | 48.5 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1992 | 1993 | 1989 | 1991 | 1991 | 1995 | 1988 | 1995 | 1973 | 1991 |
| Lowest Mean Min. Temperature (F) | 15.2 | 11.1 | 20.9 | 24.7 | 31.5 | 36.1 | 39.6 | 39.2 | 35.1 | 30.5 | 20.8 | 11.5 | 11.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1999 | 1976 | 1993 | 1980 | 1999 | 1999 | 1994 | 1990 | 1989 |
| Mean Precipitation (in.) | 9.60 | 7.33 | 6.70 | 5.13 | 3.55 | 2.63 | 0.99 | 0.85 | 1.75 | 4.43 | 9.74 | 9.49 | 62.19 |
| Highest Precipitation (in.) | 16.43 | 15.19 | 11.90 | 10.23 | 7.44 | 5.95 | 4.60 | 3.73 | 6.69 | 8.97 | 19.85 | 23.60 | 23.60 |
| Year Highest Occurred | 1971 | 1999 | 1983 | 1992 | 1996 | 1984 | 1987 | 1989 | 1986 | 1997 | 1988 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.54 | 2.06 | 1.71 | 1.69 | 0.07 | 0.93 | 0.06 | 0.00 | 0.00 | 0.10 | 1.51 | 2.28 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1999 | 1992 | 1986 | 1994 | 2000 | 1993 | 1987 | 1987 | 1989 | 2000 |
| Heating Degree Days (F) | 1101. | 936. | 931. | 762. | 536. | 347. | 183. | 178. | 323. | 592. | 892. | 1089. | 7870. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 2. | 21. | 26. | 6. | 0. | 0. | 0. | 55. |