| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.5 | 56.5 | 62.4 | 69.1 | 76.4 | 83.4 | 82.6 | 80.6 | 76.1 | 69.4 | 59.9 | 53.4 | 68.5 |
| Highest Mean Max. Temperature (F) | 61.2 | 65.5 | 69.3 | 75.4 | 87.0 | 89.6 | 88.1 | 85.2 | 83.9 | 77.5 | 67.9 | 60.0 | 89.6 |
| Year Highest Occurred | 1986 | 1999 | 1974 | 1989 | 1996 | 1980 | 1980 | 1977 | 2000 | 1979 | 1999 | 1981 | 1980 |
| Lowest Mean Max. Temperature (F) | 46.2 | 49.5 | 57.2 | 62.1 | 70.0 | 78.1 | 77.0 | 74.7 | 69.1 | 61.6 | 51.9 | 48.3 | 46.2 |
| Year Lowest Occurred | 1979 | 1978 | 1973 | 1983 | 1992 | 1984 | 1991 | 1984 | 1974 | 1984 | 2000 | 1974 | 1979 |
| Mean Temperature (F) | 37.0 | 40.2 | 45.4 | 51.7 | 59.5 | 67.1 | 69.0 | 67.6 | 62.0 | 53.3 | 43.5 | 37.4 | 52.8 |
| Highest Mean Temperature (F) | 41.9 | 45.3 | 51.0 | 55.9 | 66.6 | 72.5 | 73.3 | 70.2 | 66.2 | 57.1 | 48.3 | 42.6 | 73.3 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1972 | 1996 | 1980 | 1980 | 1977 | 1983 | 1979 | 1998 | 1977 | 1980 |
| Lowest Mean Temperature (F) | 32.6 | 35.3 | 41.3 | 45.8 | 54.4 | 63.9 | 65.6 | 64.6 | 58.5 | 47.4 | 36.4 | 32.5 | 32.5 |
| Year Lowest Occurred | 1985 | 1978 | 1977 | 1983 | 1993 | 1992 | 1991 | 1990 | 1974 | 1976 | 2000 | 1997 | 1997 |
| Mean Min. Temperature (F) | 21.4 | 23.9 | 28.4 | 34.3 | 42.5 | 50.8 | 55.4 | 54.6 | 47.9 | 37.2 | 27.0 | 21.4 | 37.1 |
| Highest Mean Min. Temperature (F) | 26.7 | 27.7 | 33.2 | 38.6 | 47.9 | 55.4 | 58.8 | 57.4 | 52.8 | 43.3 | 33.8 | 27.4 | 58.8 |
| Year Highest Occurred | 1993 | 1995 | 1972 | 1985 | 1974 | 1980 | 1972 | 1982 | 1983 | 1983 | 1983 | 1977 | 1972 |
| Lowest Mean Min. Temperature (F) | 16.3 | 20.6 | 24.4 | 29.4 | 37.7 | 46.7 | 51.2 | 51.3 | 43.8 | 31.4 | 20.8 | 15.8 | 15.8 |
| Year Lowest Occurred | 1987 | 1997 | 1977 | 1983 | 1993 | 1983 | 1987 | 1990 | 1996 | 1976 | 2000 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.60 | 0.47 | 0.36 | 0.51 | 1.10 | 2.24 | 2.52 | 3.55 | 3.03 | 1.42 | 0.64 | 0.79 | 17.23 |
| Highest Precipitation (in.) | 1.39 | 1.68 | 1.42 | 1.51 | 3.62 | 12.43 | 6.06 | 7.49 | 10.03 | 5.75 | 2.54 | 3.01 | 12.43 |
| Year Highest Occurred | 1991 | 1973 | 1999 | 1992 | 1986 | 1986 | 1991 | 1984 | 1974 | 1998 | 1978 | 1997 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.40 | 0.56 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 1999 | 1988 | 1991 | 2000 | 1994 | 1987 | 1983 | 2000 | 1995 | 1999 | 2000 | 2000 |
| Heating Degree Days (F) | 870. | 694. | 608. | 401. | 200. | 40. | 13. | 19. | 124. | 363. | 648. | 856. | 4836. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 27. | 103. | 137. | 100. | 34. | 1. | 0. | 0. | 403. |