| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.8 | 32.3 | 35.1 | 38.2 | 44.9 | 50.8 | 55.1 | 56.2 | 52.5 | 45.0 | 39.1 | 35.5 | 43.1 |
| Highest Mean Max. Temperature (F) | 39.8 | 38.6 | 42.2 | 45.3 | 51.0 | 55.2 | 60.4 | 59.9 | 56.1 | 47.9 | 43.5 | 40.9 | 60.4 |
| Year Highest Occurred | 1985 | 1989 | 1996 | 1979 | 1981 | 1979 | 1977 | 1984 | 1977 | 1993 | 1993 | 1984 | 1977 |
| Lowest Mean Max. Temperature (F) | 24.6 | 23.5 | 24.1 | 31.9 | 38.2 | 44.8 | 51.2 | 52.7 | 49.2 | 42.3 | 34.2 | 27.1 | 23.5 |
| Year Lowest Occurred | 2000 | 1974 | 1972 | 1976 | 1971 | 1971 | 1982 | 1971 | 1982 | 1999 | 1975 | 1999 | 1974 |
| Mean Temperature (F) | 28.2 | 27.6 | 30.0 | 33.5 | 39.8 | 45.9 | 50.6 | 51.8 | 47.8 | 40.0 | 34.5 | 31.0 | 38.4 |
| Highest Mean Temperature (F) | 36.1 | 35.0 | 36.8 | 40.8 | 44.8 | 50.6 | 54.0 | 55.2 | 50.1 | 42.3 | 38.9 | 37.5 | 55.2 |
| Year Highest Occurred | 1985 | 1989 | 1996 | 1979 | 1981 | 1979 | 1977 | 1997 | 1977 | 1989 | 1985 | 1983 | 1997 |
| Lowest Mean Temperature (F) | 19.4 | 18.7 | 16.3 | 26.8 | 34.3 | 40.5 | 46.8 | 48.5 | 44.5 | 36.6 | 30.0 | 21.2 | 16.3 |
| Year Lowest Occurred | 2000 | 1984 | 1972 | 1985 | 1971 | 1971 | 1982 | 1971 | 1971 | 1999 | 1987 | 1999 | 1972 |
| Mean Min. Temperature (F) | 23.5 | 22.9 | 24.9 | 28.8 | 34.8 | 41.1 | 46.1 | 47.4 | 43.0 | 35.1 | 29.9 | 26.5 | 33.7 |
| Highest Mean Min. Temperature (F) | 32.4 | 31.3 | 32.0 | 36.3 | 38.5 | 45.9 | 49.0 | 50.7 | 46.1 | 37.6 | 35.5 | 34.8 | 50.7 |
| Year Highest Occurred | 1985 | 1989 | 1979 | 1979 | 1981 | 1979 | 1997 | 1997 | 1991 | 1989 | 1985 | 1983 | 1997 |
| Lowest Mean Min. Temperature (F) | 14.1 | 13.7 | 8.4 | 21.2 | 30.4 | 36.2 | 42.3 | 44.3 | 39.4 | 30.8 | 25.2 | 15.2 | 8.4 |
| Year Lowest Occurred | 2000 | 1984 | 1972 | 1985 | 1971 | 1971 | 1982 | 1971 | 1971 | 1999 | 1976 | 1999 | 1972 |
| Mean Precipitation (in.) | 3.08 | 2.59 | 2.48 | 2.30 | 2.65 | 2.89 | 2.53 | 3.59 | 4.51 | 4.54 | 4.79 | 4.33 | 40.28 |
| Highest Precipitation (in.) | 5.50 | 7.54 | 5.56 | 6.55 | 5.01 | 8.35 | 6.13 | 6.32 | 7.77 | 10.17 | 12.22 | 13.94 | 13.94 |
| Year Highest Occurred | 1999 | 2000 | 2000 | 1979 | 1998 | 2000 | 1982 | 1997 | 1989 | 2000 | 2000 | 2000 | 2000 |
| Lowest Precipitation (in.) | 0.60 | 0.50 | 0.41 | 0.21 | 0.54 | 0.78 | 0.45 | 1.10 | 1.30 | 1.43 | 1.15 | 1.73 | 0.21 |
| Year Lowest Occurred | 1998 | 1998 | 1972 | 1973 | 1992 | 1973 | 1991 | 1975 | 1972 | 1997 | 1975 | 1974 | 1973 |
| Heating Degree Days (F) | 1142. | 1048. | 1069. | 945. | 780. | 573. | 447. | 409. | 518. | 774. | 915. | 1054. | 9674. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |