| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.5 | 42.0 | 45.1 | 51.4 | 60.1 | 69.2 | 77.5 | 77.0 | 70.1 | 60.0 | 47.9 | 41.4 | 56.9 |
| Highest Mean Max. Temperature (F) | 46.6 | 51.0 | 51.1 | 61.2 | 70.4 | 74.1 | 83.7 | 82.5 | 74.8 | 69.9 | 57.3 | 47.8 | 83.7 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1992 | 1992 | 1985 | 1994 | 1994 | 1991 | 1988 | 1995 | 1989 | 1994 |
| Lowest Mean Max. Temperature (F) | 34.1 | 36.3 | 38.4 | 42.0 | 48.7 | 63.7 | 71.5 | 66.9 | 60.9 | 52.9 | 40.3 | 35.9 | 34.1 |
| Year Lowest Occurred | 1993 | 1975 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1993 |
| Mean Temperature (F) | 30.3 | 31.7 | 34.7 | 39.6 | 46.8 | 54.4 | 61.1 | 60.9 | 54.9 | 46.2 | 36.7 | 31.0 | 44.0 |
| Highest Mean Temperature (F) | 36.5 | 38.3 | 39.1 | 46.5 | 53.9 | 58.4 | 64.4 | 63.8 | 58.3 | 52.0 | 43.6 | 35.3 | 64.4 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1992 | 1992 | 1985 | 1988 | 1988 | 1981 | 1988 | 1995 | 1981 | 1988 |
| Lowest Mean Temperature (F) | 23.7 | 27.0 | 26.5 | 33.0 | 39.8 | 50.1 | 56.3 | 54.1 | 48.7 | 40.0 | 29.4 | 25.1 | 23.7 |
| Year Lowest Occurred | 1993 | 1990 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1994 | 1971 | 1993 |
| Mean Min. Temperature (F) | 20.1 | 21.3 | 24.3 | 27.7 | 33.5 | 39.6 | 44.7 | 44.8 | 39.6 | 32.3 | 25.5 | 20.6 | 31.2 |
| Highest Mean Min. Temperature (F) | 26.4 | 25.8 | 30.6 | 31.9 | 37.4 | 42.7 | 48.3 | 47.7 | 44.0 | 35.6 | 29.9 | 26.5 | 48.3 |
| Year Highest Occurred | 1986 | 1992 | 1978 | 1990 | 1992 | 1985 | 1984 | 1971 | 1998 | 1987 | 1995 | 1981 | 1984 |
| Lowest Mean Min. Temperature (F) | 13.3 | 13.4 | 14.7 | 24.0 | 30.0 | 36.4 | 40.5 | 41.4 | 36.4 | 26.5 | 18.4 | 13.1 | 13.1 |
| Year Lowest Occurred | 1993 | 1990 | 1977 | 1975 | 1975 | 1980 | 1993 | 1976 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 6.01 | 5.71 | 4.57 | 1.82 | 1.21 | 0.77 | 0.33 | 0.46 | 0.90 | 1.95 | 4.25 | 4.68 | 32.66 |
| Highest Precipitation (in.) | 18.23 | 22.25 | 19.58 | 6.71 | 4.18 | 2.09 | 2.66 | 1.96 | 4.78 | 6.67 | 13.55 | 18.50 | 22.25 |
| Year Highest Occurred | 1997 | 1986 | 1995 | 1982 | 1996 | 1982 | 1974 | 1976 | 1982 | 1975 | 1981 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.08 | 0.07 | 0.50 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1988 | 2000 | 1992 | 1985 | 1994 | 2000 | 2000 | 1987 | 1995 | 1992 | 1989 | 1985 |
| Heating Degree Days (F) | 1076. | 934. | 924. | 763. | 565. | 320. | 142. | 148. | 310. | 585. | 849. | 1055. | 7671. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 2. | 20. | 21. | 4. | 0. | 0. | 0. | 47. |