| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.9 | 53.8 | 61.2 | 69.3 | 78.7 | 89.9 | 94.4 | 91.7 | 84.6 | 72.7 | 58.0 | 48.9 | 70.9 |
| Highest Mean Max. Temperature (F) | 59.0 | 63.3 | 71.6 | 78.0 | 87.2 | 94.8 | 98.3 | 96.3 | 90.5 | 80.8 | 66.7 | 58.9 | 98.3 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1994 | 1994 | 1994 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 34.8 | 44.2 | 51.5 | 60.8 | 72.3 | 83.8 | 89.8 | 87.5 | 79.0 | 66.0 | 50.8 | 40.1 | 34.8 |
| Year Lowest Occurred | 1973 | 1979 | 1973 | 1975 | 1995 | 1995 | 1999 | 1982 | 1986 | 1972 | 2000 | 1978 | 1973 |
| Mean Temperature (F) | 34.8 | 39.8 | 45.4 | 52.1 | 60.9 | 70.6 | 76.7 | 74.7 | 67.3 | 55.7 | 43.1 | 35.5 | 54.7 |
| Highest Mean Temperature (F) | 43.4 | 46.6 | 50.6 | 59.0 | 66.7 | 74.6 | 80.0 | 78.2 | 70.8 | 61.2 | 48.4 | 43.3 | 80.0 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1989 | 1984 | 1981 | 1996 | 1994 | 1979 | 1988 | 1999 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 23.1 | 31.4 | 39.6 | 45.5 | 56.6 | 65.2 | 74.2 | 72.1 | 62.5 | 50.3 | 37.3 | 28.5 | 23.1 |
| Year Lowest Occurred | 1973 | 1979 | 1973 | 1975 | 1971 | 1995 | 1982 | 1979 | 1986 | 1984 | 2000 | 1990 | 1973 |
| Mean Min. Temperature (F) | 21.7 | 25.7 | 29.6 | 34.9 | 43.0 | 51.3 | 59.0 | 57.7 | 49.9 | 38.6 | 28.1 | 22.1 | 38.5 |
| Highest Mean Min. Temperature (F) | 28.8 | 31.1 | 34.7 | 40.3 | 48.3 | 56.2 | 63.5 | 60.4 | 55.9 | 43.2 | 33.2 | 27.7 | 63.5 |
| Year Highest Occurred | 1980 | 1992 | 1992 | 1992 | 2000 | 1981 | 1996 | 2000 | 1990 | 1974 | 1981 | 1980 | 1996 |
| Lowest Mean Min. Temperature (F) | 11.3 | 18.7 | 23.0 | 30.3 | 38.0 | 46.5 | 54.9 | 54.3 | 45.6 | 33.5 | 23.7 | 15.8 | 11.3 |
| Year Lowest Occurred | 1973 | 1979 | 1977 | 1975 | 1983 | 1995 | 1997 | 1978 | 1993 | 1984 | 1994 | 1990 | 1973 |
| Mean Precipitation (in.) | 1.34 | 1.23 | 1.24 | 0.69 | 0.58 | 0.32 | 0.96 | 1.41 | 0.93 | 1.00 | 0.91 | 0.65 | 11.26 |
| Highest Precipitation (in.) | 6.00 | 3.30 | 4.37 | 3.14 | 1.98 | 1.14 | 2.99 | 3.21 | 3.99 | 4.02 | 3.50 | 2.61 | 6.00 |
| Year Highest Occurred | 1993 | 1980 | 1992 | 1988 | 1995 | 1988 | 1989 | 1992 | 1990 | 2000 | 1978 | 1984 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1972 | 1999 | 1989 | 1991 | 1996 | 1993 | 1998 | 1989 | 1999 | 1999 | 1998 | 1976 |
| Heating Degree Days (F) | 938. | 707. | 608. | 395. | 175. | 23. | 0. | 0. | 42. | 300. | 658. | 915. | 4761. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 47. | 189. | 362. | 301. | 109. | 10. | 0. | 0. | 1025. |