| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.7 | 45.2 | 51.0 | 58.3 | 66.1 | 73.9 | 83.4 | 83.1 | 75.3 | 64.3 | 47.3 | 40.1 | 60.6 |
| Highest Mean Max. Temperature (F) | 49.1 | 56.5 | 58.3 | 66.8 | 78.8 | 79.0 | 88.6 | 89.0 | 82.2 | 75.2 | 56.2 | 48.0 | 89.0 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1974 | 1994 | 1998 | 1990 | 1988 | 1976 | 1989 | 1998 |
| Lowest Mean Max. Temperature (F) | 29.6 | 34.5 | 44.8 | 49.6 | 58.6 | 67.8 | 72.8 | 74.7 | 64.7 | 54.1 | 38.9 | 33.4 | 29.6 |
| Year Lowest Occurred | 1979 | 1993 | 1975 | 1975 | 1977 | 1980 | 1993 | 1976 | 1986 | 1984 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 29.6 | 33.6 | 37.6 | 42.4 | 49.5 | 56.4 | 63.2 | 62.4 | 54.7 | 45.7 | 35.5 | 28.9 | 45.0 |
| Highest Mean Temperature (F) | 36.5 | 39.3 | 41.5 | 48.2 | 58.1 | 61.4 | 68.1 | 66.1 | 59.6 | 52.9 | 41.3 | 33.5 | 68.1 |
| Year Highest Occurred | 1998 | 1995 | 1997 | 1990 | 1992 | 1992 | 1985 | 1986 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 19.6 | 22.2 | 33.0 | 35.3 | 44.3 | 52.3 | 55.7 | 57.9 | 48.6 | 41.6 | 27.1 | 22.5 | 19.6 |
| Year Lowest Occurred | 1979 | 1993 | 1971 | 1975 | 1977 | 1976 | 1993 | 1975 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 19.4 | 21.9 | 24.1 | 26.5 | 32.8 | 38.8 | 42.9 | 41.7 | 34.1 | 27.0 | 23.6 | 17.7 | 29.2 |
| Highest Mean Min. Temperature (F) | 28.9 | 28.2 | 29.4 | 33.2 | 37.4 | 44.4 | 47.6 | 46.6 | 37.6 | 31.5 | 28.7 | 25.6 | 47.6 |
| Year Highest Occurred | 1998 | 2000 | 1983 | 1992 | 1992 | 1992 | 1985 | 1991 | 1997 | 1979 | 1998 | 1996 | 1985 |
| Lowest Mean Min. Temperature (F) | 9.2 | 9.9 | 20.2 | 21.0 | 29.6 | 33.9 | 38.5 | 37.4 | 30.6 | 22.6 | 11.7 | 8.9 | 8.9 |
| Year Lowest Occurred | 1993 | 1993 | 1995 | 1975 | 1982 | 1976 | 1993 | 1980 | 1972 | 1998 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.30 | 1.32 | 1.04 | 0.89 | 1.25 | 0.86 | 0.60 | 0.74 | 0.49 | 0.70 | 1.12 | 1.22 | 11.53 |
| Highest Precipitation (in.) | 3.23 | 3.55 | 2.90 | 2.18 | 4.91 | 1.69 | 3.74 | 2.62 | 1.64 | 1.97 | 4.32 | 4.33 | 4.91 |
| Year Highest Occurred | 1997 | 1986 | 1983 | 1988 | 1998 | 1981 | 1987 | 1976 | 1985 | 1979 | 1998 | 1983 | 1998 |
| Lowest Precipitation (in.) | 0.14 | 0.20 | 0.19 | 0.12 | 0.31 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.15 | 0.00 |
| Year Lowest Occurred | 1985 | 1990 | 1988 | 1986 | 1982 | 1989 | 1988 | 2000 | 1999 | 1988 | 1993 | 1976 | 1988 |
| Heating Degree Days (F) | 1099. | 881. | 852. | 679. | 482. | 267. | 123. | 122. | 317. | 600. | 886. | 1119. | 7427. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 65. | 40. | 8. | 0. | 0. | 0. | 121. |