| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.3 | 48.0 | 54.4 | 61.1 | 69.6 | 78.7 | 86.6 | 85.6 | 78.0 | 66.5 | 51.4 | 42.6 | 63.7 |
| Highest Mean Max. Temperature (F) | 50.0 | 57.0 | 61.4 | 69.3 | 78.4 | 85.2 | 90.0 | 90.6 | 85.4 | 75.6 | 61.8 | 49.3 | 90.6 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1974 | 1972 | 1981 | 1974 | 1988 | 1995 | 1973 | 1981 |
| Lowest Mean Max. Temperature (F) | 33.5 | 37.6 | 47.5 | 50.0 | 60.2 | 73.0 | 80.7 | 77.9 | 69.1 | 59.0 | 42.1 | 32.2 | 32.2 |
| Year Lowest Occurred | 1993 | 1993 | 1991 | 1975 | 1998 | 1980 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 32.5 | 37.3 | 42.3 | 47.0 | 54.2 | 61.6 | 67.9 | 66.8 | 60.2 | 50.5 | 39.4 | 32.3 | 49.3 |
| Highest Mean Temperature (F) | 39.9 | 43.0 | 48.6 | 52.6 | 60.3 | 66.4 | 71.4 | 69.5 | 64.0 | 56.0 | 47.0 | 39.4 | 71.4 |
| Year Highest Occurred | 1986 | 1991 | 1993 | 1987 | 1992 | 1974 | 1994 | 1988 | 1974 | 1988 | 1995 | 1981 | 1994 |
| Lowest Mean Temperature (F) | 25.5 | 27.9 | 35.8 | 38.8 | 47.0 | 56.5 | 61.3 | 61.8 | 53.8 | 45.9 | 31.7 | 20.7 | 20.7 |
| Year Lowest Occurred | 1993 | 1989 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 22.7 | 26.6 | 30.1 | 32.9 | 38.8 | 44.4 | 49.2 | 47.9 | 42.3 | 34.4 | 27.4 | 22.0 | 34.9 |
| Highest Mean Min. Temperature (F) | 31.0 | 32.4 | 37.7 | 36.6 | 42.6 | 48.0 | 53.1 | 50.8 | 47.4 | 38.2 | 33.1 | 30.1 | 53.1 |
| Year Highest Occurred | 1998 | 2000 | 1993 | 1992 | 1997 | 1977 | 1996 | 1992 | 1998 | 1979 | 1973 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 14.7 | 16.5 | 22.7 | 27.6 | 32.9 | 38.7 | 41.6 | 44.9 | 38.6 | 31.1 | 20.7 | 9.2 | 9.2 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1975 | 1978 | 1978 | 1983 | 1980 | 1986 | 1971 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.50 | 2.57 | 2.22 | 0.88 | 1.15 | 0.73 | 0.48 | 0.40 | 0.76 | 1.07 | 2.34 | 2.20 | 17.30 |
| Highest Precipitation (in.) | 7.85 | 15.11 | 9.49 | 3.08 | 5.25 | 2.79 | 5.21 | 1.64 | 3.28 | 3.05 | 12.18 | 8.25 | 15.11 |
| Year Highest Occurred | 1980 | 1986 | 1995 | 1995 | 1971 | 1983 | 1990 | 1976 | 1998 | 1981 | 1981 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.04 | 0.10 | 0.11 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1988 | 1997 | 1985 | 1985 | 1990 | 2000 | 1997 | 1995 | 1995 | 1992 | 1989 | 1985 |
| Heating Degree Days (F) | 1007. | 777. | 705. | 540. | 345. | 150. | 42. | 40. | 175. | 452. | 767. | 1013. | 6013. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 48. | 132. | 94. | 29. | 1. | 0. | 0. | 314. |