| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.7 | 53.0 | 59.5 | 67.0 | 75.2 | 83.6 | 82.9 | 79.8 | 75.6 | 67.7 | 56.5 | 49.6 | 66.6 |
| Highest Mean Max. Temperature (F) | 55.5 | 60.0 | 66.5 | 73.3 | 84.5 | 90.3 | 88.5 | 84.0 | 81.9 | 74.0 | 65.0 | 55.6 | 90.3 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1989 | 1996 | 1990 | 1980 | 1994 | 1998 | 1979 | 1999 | 1977 | 1990 |
| Lowest Mean Max. Temperature (F) | 43.0 | 46.0 | 53.5 | 59.1 | 69.7 | 77.5 | 78.3 | 75.7 | 70.5 | 62.5 | 48.3 | 42.9 | 42.9 |
| Year Lowest Occurred | 1992 | 1973 | 1973 | 1983 | 1987 | 1986 | 1991 | 1971 | 1974 | 1984 | 1972 | 1997 | 1997 |
| Mean Temperature (F) | 35.2 | 38.6 | 43.5 | 50.1 | 58.4 | 66.5 | 67.9 | 65.9 | 60.7 | 51.8 | 41.7 | 35.8 | 51.3 |
| Highest Mean Temperature (F) | 40.0 | 43.6 | 48.2 | 55.1 | 66.2 | 72.2 | 71.4 | 68.9 | 66.2 | 54.6 | 47.2 | 42.0 | 72.2 |
| Year Highest Occurred | 1999 | 2000 | 1972 | 1989 | 1996 | 1990 | 1994 | 1994 | 1998 | 1987 | 1999 | 1977 | 1990 |
| Lowest Mean Temperature (F) | 30.9 | 35.1 | 39.8 | 43.7 | 53.5 | 62.9 | 64.7 | 63.1 | 56.6 | 46.9 | 35.9 | 31.4 | 30.9 |
| Year Lowest Occurred | 1992 | 1973 | 1987 | 1973 | 1983 | 1979 | 1975 | 1974 | 1974 | 1976 | 1972 | 1997 | 1992 |
| Mean Min. Temperature (F) | 21.7 | 24.1 | 27.5 | 33.1 | 41.5 | 49.3 | 52.8 | 51.9 | 45.8 | 35.8 | 26.9 | 22.0 | 36.0 |
| Highest Mean Min. Temperature (F) | 26.3 | 29.8 | 31.1 | 37.3 | 47.8 | 54.1 | 55.6 | 54.5 | 50.4 | 40.2 | 31.9 | 28.5 | 55.6 |
| Year Highest Occurred | 1999 | 1996 | 1974 | 1986 | 1996 | 1990 | 1993 | 1977 | 1998 | 1998 | 1994 | 1977 | 1993 |
| Lowest Mean Min. Temperature (F) | 16.5 | 18.4 | 24.4 | 27.6 | 35.8 | 45.7 | 50.0 | 49.2 | 42.8 | 30.6 | 21.0 | 17.4 | 16.5 |
| Year Lowest Occurred | 1976 | 1974 | 1980 | 1973 | 1983 | 1991 | 1984 | 1990 | 1974 | 1976 | 1976 | 1989 | 1976 |
| Mean Precipitation (in.) | 0.70 | 0.66 | 0.50 | 0.58 | 1.22 | 1.60 | 3.02 | 3.63 | 2.48 | 1.26 | 0.75 | 0.87 | 17.27 |
| Highest Precipitation (in.) | 2.21 | 2.68 | 1.60 | 3.15 | 4.33 | 5.19 | 7.11 | 6.73 | 6.74 | 4.22 | 3.24 | 3.04 | 7.11 |
| Year Highest Occurred | 1997 | 1987 | 1998 | 1977 | 1994 | 2000 | 1990 | 1984 | 1980 | 1985 | 1986 | 1991 | 1990 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.78 | 0.83 | 0.39 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 1999 | 1996 | 1991 | 1998 | 1990 | 1985 | 1983 | 1987 | 1995 | 1999 | 1981 | 2000 |
| Heating Degree Days (F) | 923. | 741. | 668. | 449. | 231. | 49. | 16. | 40. | 152. | 411. | 698. | 905. | 5283. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 23. | 92. | 104. | 65. | 22. | 0. | 0. | 0. | 307. |