| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.4 | 45.5 | 51.4 | 59.1 | 68.7 | 79.5 | 85.8 | 83.5 | 76.0 | 64.9 | 51.0 | 42.7 | 62.4 |
| Highest Mean Max. Temperature (F) | 48.8 | 55.0 | 59.6 | 67.9 | 77.5 | 84.5 | 89.4 | 87.3 | 81.3 | 72.9 | 63.1 | 52.0 | 89.4 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1994 | 1994 | 1998 | 1979 | 1999 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 32.1 | 39.9 | 42.8 | 49.7 | 62.3 | 72.7 | 81.9 | 80.2 | 69.4 | 55.8 | 43.8 | 35.6 | 32.1 |
| Year Lowest Occurred | 1979 | 1993 | 1973 | 1975 | 1995 | 1995 | 1983 | 1983 | 1986 | 1984 | 2000 | 1971 | 1979 |
| Mean Temperature (F) | 22.9 | 29.1 | 35.5 | 42.1 | 50.6 | 59.2 | 65.7 | 64.1 | 56.0 | 45.1 | 33.2 | 25.0 | 44.0 |
| Highest Mean Temperature (F) | 30.8 | 37.6 | 40.2 | 48.7 | 55.4 | 64.1 | 68.4 | 67.5 | 60.4 | 50.0 | 38.3 | 32.2 | 68.4 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1992 | 1984 | 1994 | 1998 | 1994 | 1990 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 12.2 | 22.5 | 30.2 | 34.6 | 45.9 | 54.8 | 62.9 | 61.0 | 52.1 | 40.0 | 27.0 | 17.2 | 12.2 |
| Year Lowest Occurred | 1989 | 1985 | 1973 | 1975 | 1975 | 1975 | 1987 | 1975 | 1986 | 1984 | 1994 | 1990 | 1989 |
| Mean Min. Temperature (F) | 5.4 | 12.7 | 19.6 | 25.1 | 32.5 | 38.8 | 45.5 | 44.6 | 35.9 | 25.3 | 15.3 | 7.2 | 25.7 |
| Highest Mean Min. Temperature (F) | 13.9 | 20.5 | 25.1 | 30.0 | 36.2 | 44.2 | 49.3 | 48.8 | 43.7 | 31.6 | 22.7 | 15.5 | 49.3 |
| Year Highest Occurred | 2000 | 2000 | 1995 | 1992 | 1992 | 1988 | 1999 | 2000 | 1997 | 1972 | 1983 | 1983 | 1999 |
| Lowest Mean Min. Temperature (F) | -9.0 | 3.7 | 13.0 | 19.4 | 27.5 | 34.1 | 42.5 | 40.0 | 31.5 | 20.2 | 9.8 | -2.2 | -9.0 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1975 | 1975 | 1982 | 1995 | 1975 | 1973 | 1999 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.48 | 0.35 | 0.75 | 0.69 | 0.80 | 0.59 | 0.90 | 1.30 | 0.97 | 0.89 | 0.38 | 0.29 | 8.39 |
| Highest Precipitation (in.) | 1.51 | 1.20 | 1.89 | 1.78 | 2.50 | 1.60 | 2.50 | 3.33 | 2.68 | 2.30 | 1.26 | 1.09 | 3.33 |
| Year Highest Occurred | 1997 | 1993 | 1995 | 1988 | 1992 | 1995 | 1999 | 1997 | 1982 | 2000 | 1985 | 1983 | 1997 |
| Lowest Precipitation (in.) | 0.03 | 0.03 | 0.04 | 0.04 | 0.02 | 0.05 | 0.21 | 0.08 | 0.04 | 0.00 | 0.07 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1972 | 1999 | 2000 | 1974 | 1978 | 2000 | 1985 | 1979 | 1995 | 1999 | 1989 | 1995 |
| Heating Degree Days (F) | 1304. | 1006. | 916. | 687. | 447. | 196. | 44. | 71. | 276. | 618. | 956. | 1242. | 7763. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 22. | 64. | 41. | 4. | 0. | 0. | 0. | 131. |