| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.8 | 53.1 | 57.9 | 64.2 | 71.9 | 79.9 | 87.9 | 87.0 | 79.8 | 67.0 | 51.3 | 45.1 | 66.0 |
| Highest Mean Max. Temperature (F) | 54.8 | 60.3 | 64.4 | 71.7 | 80.9 | 84.8 | 94.3 | 93.4 | 87.8 | 75.1 | 56.9 | 49.5 | 94.3 |
| Year Highest Occurred | 1995 | 1992 | 1986 | 1987 | 1992 | 1987 | 1985 | 1986 | 1974 | 1987 | 1999 | 1995 | 1985 |
| Lowest Mean Max. Temperature (F) | 40.5 | 47.2 | 51.8 | 56.1 | 64.5 | 72.2 | 79.1 | 79.1 | 70.2 | 59.9 | 45.0 | 39.3 | 39.3 |
| Year Lowest Occurred | 1982 | 1989 | 1975 | 1975 | 1998 | 1980 | 1993 | 1976 | 1978 | 1975 | 1985 | 1972 | 1972 |
| Mean Temperature (F) | 38.7 | 42.8 | 46.3 | 50.9 | 57.0 | 63.7 | 69.7 | 68.9 | 62.1 | 52.2 | 42.8 | 37.9 | 52.8 |
| Highest Mean Temperature (F) | 45.6 | 48.1 | 51.1 | 55.8 | 62.5 | 68.2 | 73.8 | 73.3 | 66.1 | 56.6 | 48.1 | 43.1 | 73.8 |
| Year Highest Occurred | 1995 | 1992 | 1986 | 1992 | 1992 | 1986 | 1996 | 1986 | 1991 | 1988 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 34.3 | 36.5 | 42.8 | 44.5 | 52.5 | 59.2 | 63.0 | 64.6 | 57.5 | 49.3 | 36.4 | 31.3 | 31.3 |
| Year Lowest Occurred | 1977 | 1989 | 1975 | 1975 | 1977 | 1980 | 1993 | 1995 | 1978 | 1971 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 30.6 | 32.4 | 34.6 | 37.5 | 42.1 | 47.5 | 51.4 | 50.7 | 44.4 | 37.3 | 34.2 | 30.7 | 39.5 |
| Highest Mean Min. Temperature (F) | 36.3 | 37.6 | 39.9 | 42.3 | 45.5 | 51.7 | 55.4 | 55.1 | 48.3 | 44.2 | 39.4 | 36.7 | 55.4 |
| Year Highest Occurred | 1995 | 1986 | 1993 | 1992 | 1993 | 1986 | 1998 | 1977 | 1995 | 1979 | 1995 | 1995 | 1998 |
| Lowest Mean Min. Temperature (F) | 24.2 | 25.8 | 30.3 | 32.9 | 38.5 | 43.5 | 46.2 | 46.4 | 41.8 | 32.9 | 26.5 | 23.0 | 23.0 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1975 | 1982 | 1976 | 1983 | 1980 | 1988 | 1974 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.77 | 2.32 | 2.26 | 1.61 | 1.41 | 0.77 | 0.50 | 0.57 | 0.95 | 1.51 | 3.20 | 3.27 | 21.14 |
| Highest Precipitation (in.) | 5.81 | 5.61 | 4.50 | 3.59 | 4.32 | 1.93 | 1.59 | 3.57 | 4.87 | 4.29 | 8.29 | 10.95 | 10.95 |
| Year Highest Occurred | 1974 | 1983 | 1989 | 2000 | 1998 | 1980 | 1992 | 1976 | 1977 | 1979 | 1998 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.25 | 0.40 | 0.75 | 0.44 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.42 | 0.41 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 1988 | 1985 | 1982 | 1999 | 1999 | 1998 | 1999 | 1987 | 1976 | 1976 | 1999 |
| Heating Degree Days (F) | 815. | 624. | 582. | 425. | 257. | 97. | 29. | 29. | 128. | 399. | 668. | 841. | 4894. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 57. | 172. | 148. | 40. | 0. | 0. | 0. | 426. |