| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.0 | 44.3 | 52.7 | 62.3 | 72.5 | 84.2 | 91.2 | 89.6 | 79.4 | 66.3 | 49.4 | 40.0 | 64.2 |
| Highest Mean Max. Temperature (F) | 47.4 | 53.0 | 60.6 | 70.1 | 78.4 | 91.6 | 95.9 | 93.8 | 85.7 | 73.2 | 59.5 | 50.7 | 95.9 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1992 | 1994 | 1977 | 1989 | 1971 | 1979 | 1999 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 28.9 | 33.9 | 46.4 | 53.8 | 62.5 | 77.6 | 85.9 | 85.7 | 72.5 | 57.8 | 40.3 | 30.9 | 28.9 |
| Year Lowest Occurred | 1979 | 1989 | 1984 | 1983 | 1995 | 1983 | 1993 | 1993 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Temperature (F) | 25.3 | 30.4 | 38.6 | 46.4 | 55.5 | 64.8 | 71.3 | 69.4 | 60.1 | 48.6 | 35.6 | 26.8 | 47.7 |
| Highest Mean Temperature (F) | 32.8 | 35.5 | 45.2 | 52.7 | 59.3 | 70.0 | 75.2 | 72.6 | 65.7 | 53.3 | 42.6 | 35.9 | 75.2 |
| Year Highest Occurred | 1999 | 1986 | 1986 | 1992 | 1992 | 1988 | 1989 | 1971 | 1990 | 1988 | 1989 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 15.3 | 20.0 | 34.4 | 40.7 | 49.5 | 59.1 | 66.3 | 65.1 | 55.0 | 44.2 | 28.1 | 15.9 | 15.3 |
| Year Lowest Occurred | 1984 | 1989 | 1987 | 1983 | 1995 | 1995 | 1993 | 1975 | 1996 | 1984 | 2000 | 1990 | 1984 |
| Mean Min. Temperature (F) | 11.6 | 16.5 | 24.4 | 30.5 | 38.5 | 45.3 | 51.4 | 49.2 | 40.8 | 30.8 | 21.8 | 13.6 | 31.2 |
| Highest Mean Min. Temperature (F) | 21.4 | 22.7 | 29.9 | 36.2 | 42.3 | 49.5 | 54.8 | 53.7 | 47.0 | 36.8 | 29.2 | 21.3 | 54.8 |
| Year Highest Occurred | 1999 | 1992 | 1986 | 1989 | 1992 | 1988 | 1990 | 1983 | 1990 | 1972 | 1989 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | 1.2 | 6.1 | 17.4 | 26.2 | 34.0 | 40.2 | 46.6 | 42.2 | 33.6 | 23.8 | 15.9 | 0.8 | 0.8 |
| Year Lowest Occurred | 1984 | 1989 | 1997 | 1982 | 1975 | 1995 | 1995 | 1975 | 1996 | 1995 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.32 | 0.43 | 0.77 | 0.95 | 1.30 | 0.73 | 0.65 | 0.66 | 1.03 | 1.07 | 0.55 | 0.44 | 8.90 |
| Highest Precipitation (in.) | 1.11 | 2.03 | 1.69 | 3.98 | 4.21 | 2.57 | 1.89 | 1.71 | 3.33 | 4.01 | 2.30 | 2.41 | 4.21 |
| Year Highest Occurred | 1999 | 1990 | 1979 | 1999 | 1995 | 1990 | 1998 | 1997 | 1982 | 1994 | 1978 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.04 | 0.01 | 0.10 | 0.10 | 0.10 | 0.00 | 0.08 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1988 | 1972 | 1971 | 1987 | 1974 | 1980 | 1979 | 1985 | 1994 | 1988 | 1976 | 1976 | 1980 |
| Heating Degree Days (F) | 1230. | 970. | 820. | 559. | 299. | 94. | 10. | 16. | 177. | 511. | 882. | 1184. | 6752. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 86. | 205. | 152. | 30. | 0. | 0. | 0. | 479. |