| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.4 | 52.2 | 60.7 | 69.5 | 77.5 | 87.7 | 92.2 | 90.1 | 82.6 | 72.2 | 57.2 | 47.4 | 69.6 |
| Highest Mean Max. Temperature (F) | 58.8 | 62.3 | 69.5 | 76.0 | 86.1 | 96.5 | 98.4 | 98.1 | 91.1 | 78.4 | 69.2 | 53.9 | 98.4 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1989 | 1974 | 1990 | 1980 | 1983 | 1998 | 1979 | 1999 | 1994 | 1980 |
| Lowest Mean Max. Temperature (F) | 32.0 | 35.8 | 52.5 | 60.1 | 71.3 | 81.2 | 88.2 | 83.6 | 76.5 | 66.8 | 45.6 | 34.1 | 32.0 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1982 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 32.3 | 37.2 | 45.3 | 54.6 | 63.8 | 73.9 | 78.3 | 76.6 | 68.7 | 56.9 | 43.0 | 33.9 | 55.4 |
| Highest Mean Temperature (F) | 41.1 | 44.8 | 51.6 | 59.5 | 69.5 | 79.5 | 82.2 | 81.4 | 75.1 | 59.9 | 51.1 | 39.6 | 82.2 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1989 | 1974 | 1990 | 1980 | 2000 | 1998 | 1998 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 20.9 | 24.8 | 39.6 | 47.2 | 58.8 | 69.4 | 75.8 | 71.6 | 63.0 | 51.6 | 34.9 | 21.7 | 20.9 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1992 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 18.2 | 22.1 | 29.9 | 39.6 | 50.0 | 60.0 | 64.4 | 63.0 | 54.7 | 41.5 | 28.8 | 20.3 | 41.0 |
| Highest Mean Min. Temperature (F) | 24.5 | 28.6 | 35.1 | 44.5 | 54.5 | 63.4 | 66.9 | 65.8 | 59.0 | 46.4 | 33.5 | 25.7 | 66.9 |
| Year Highest Occurred | 1992 | 1992 | 1986 | 1977 | 1977 | 1994 | 1977 | 2000 | 1998 | 1998 | 1998 | 1991 | 1977 |
| Lowest Mean Min. Temperature (F) | 9.9 | 13.8 | 23.7 | 34.3 | 44.9 | 56.8 | 62.1 | 59.5 | 49.4 | 34.9 | 23.2 | 9.3 | 9.3 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1983 | 1995 | 1995 | 1992 | 1974 | 1980 | 1976 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.53 | 0.57 | 1.45 | 1.60 | 3.12 | 2.81 | 2.83 | 2.22 | 1.76 | 1.48 | 0.86 | 0.71 | 19.94 |
| Highest Precipitation (in.) | 1.82 | 3.14 | 5.70 | 5.52 | 8.99 | 7.91 | 7.59 | 6.39 | 5.77 | 8.68 | 3.03 | 2.76 | 8.99 |
| Year Highest Occurred | 1980 | 1985 | 1973 | 1997 | 1978 | 1989 | 1982 | 1992 | 1985 | 1998 | 1971 | 1991 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.02 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1991 | 1997 | 1996 | 1974 | 1998 | 1980 | 2000 | 2000 | 1975 | 1999 | 1985 | 1998 |
| Heating Degree Days (F) | 1014. | 779. | 611. | 327. | 117. | 10. | 0. | 2. | 41. | 259. | 660. | 966. | 4786. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 78. | 275. | 412. | 360. | 151. | 7. | 0. | 0. | 1296. |