| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.3 | 43.9 | 49.7 | 57.9 | 66.0 | 75.4 | 83.1 | 82.3 | 74.7 | 65.3 | 52.5 | 41.7 | 61.1 |
| Highest Mean Max. Temperature (F) | 46.7 | 54.8 | 59.3 | 65.2 | 72.3 | 80.2 | 87.2 | 86.5 | 80.5 | 72.1 | 61.9 | 48.8 | 87.2 |
| Year Highest Occurred | 1996 | 1991 | 1997 | 1992 | 1992 | 2000 | 1994 | 1981 | 1974 | 1988 | 1995 | 2000 | 1994 |
| Lowest Mean Max. Temperature (F) | 33.2 | 33.5 | 42.7 | 48.9 | 56.2 | 68.1 | 78.2 | 75.0 | 66.8 | 57.8 | 42.8 | 34.1 | 33.2 |
| Year Lowest Occurred | 1992 | 1993 | 1973 | 1975 | 1977 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1990 | 1992 |
| Mean Temperature (F) | 29.7 | 32.8 | 38.1 | 44.6 | 52.5 | 61.0 | 67.9 | 66.9 | 59.6 | 50.3 | 39.9 | 30.9 | 47.9 |
| Highest Mean Temperature (F) | 36.2 | 40.3 | 44.8 | 51.6 | 57.8 | 65.6 | 71.0 | 70.2 | 62.5 | 55.7 | 46.9 | 36.2 | 71.0 |
| Year Highest Occurred | 2000 | 1991 | 1997 | 1992 | 1992 | 1981 | 1994 | 1971 | 1995 | 1988 | 1995 | 1996 | 1994 |
| Lowest Mean Temperature (F) | 24.4 | 25.9 | 32.2 | 37.0 | 45.0 | 55.3 | 63.2 | 60.9 | 54.2 | 45.6 | 31.5 | 23.7 | 23.7 |
| Year Lowest Occurred | 1992 | 1993 | 1977 | 1975 | 1977 | 1998 | 1983 | 1976 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 19.1 | 21.7 | 26.4 | 31.3 | 39.0 | 46.6 | 52.7 | 51.5 | 44.4 | 35.3 | 27.3 | 20.1 | 34.6 |
| Highest Mean Min. Temperature (F) | 25.8 | 26.0 | 31.3 | 38.0 | 43.2 | 51.5 | 55.6 | 55.3 | 47.2 | 39.7 | 31.8 | 25.9 | 55.6 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1992 | 1992 | 1977 | 1984 | 1971 | 1983 | 1987 | 1995 | 1996 | 1984 |
| Lowest Mean Min. Temperature (F) | 13.9 | 15.4 | 18.4 | 25.1 | 33.7 | 42.2 | 48.2 | 46.7 | 40.8 | 29.6 | 20.1 | 13.3 | 13.3 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1975 | 1977 | 1995 | 1983 | 1976 | 1973 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.31 | 2.70 | 1.56 | 0.39 | 0.33 | 0.27 | 0.52 | 0.49 | 0.53 | 0.61 | 1.68 | 1.62 | 13.01 |
| Highest Precipitation (in.) | 8.08 | 8.51 | 9.85 | 1.15 | 2.74 | 1.19 | 2.07 | 2.24 | 1.79 | 2.41 | 6.07 | 6.02 | 9.85 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1999 | 1994 | 1992 | 1992 | 1983 | 1982 | 1991 | 1996 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.10 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1997 | 1998 | 1999 | 1996 | 2000 | 1998 | 1995 | 1988 | 1995 | 1999 | 1997 |
| Heating Degree Days (F) | 1094. | 903. | 835. | 611. | 395. | 156. | 29. | 41. | 181. | 456. | 754. | 1058. | 6513. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 37. | 119. | 100. | 18. | 1. | 0. | 0. | 281. |