| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.1 | 48.3 | 53.5 | 60.8 | 69.2 | 78.3 | 80.7 | 78.2 | 73.0 | 64.1 | 52.5 | 45.9 | 62.5 |
| Highest Mean Max. Temperature (F) | 53.9 | 54.7 | 61.4 | 67.5 | 76.7 | 84.3 | 87.5 | 83.4 | 78.7 | 69.4 | 62.0 | 55.2 | 87.5 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1981 | 1996 | 1994 | 1980 | 1995 | 2000 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 37.4 | 43.0 | 46.6 | 52.1 | 65.3 | 73.0 | 75.9 | 74.4 | 69.6 | 54.7 | 44.3 | 41.0 | 37.4 |
| Year Lowest Occurred | 1979 | 1987 | 1987 | 1997 | 1980 | 1986 | 1991 | 1971 | 1996 | 1984 | 1972 | 1974 | 1979 |
| Mean Temperature (F) | 29.7 | 33.0 | 37.5 | 43.9 | 52.6 | 60.8 | 64.5 | 62.8 | 57.0 | 47.1 | 36.6 | 30.2 | 46.3 |
| Highest Mean Temperature (F) | 35.1 | 39.1 | 44.7 | 47.8 | 59.3 | 64.8 | 68.2 | 65.7 | 60.4 | 49.8 | 42.4 | 36.4 | 68.2 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1992 | 1996 | 1994 | 1980 | 1995 | 1998 | 1977 | 1973 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 23.4 | 28.6 | 31.7 | 36.3 | 48.7 | 56.5 | 62.0 | 60.0 | 54.1 | 41.6 | 29.6 | 21.6 | 21.6 |
| Year Lowest Occurred | 1979 | 1983 | 1987 | 1983 | 1983 | 1983 | 1991 | 1990 | 1987 | 1984 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 14.3 | 17.6 | 21.4 | 27.0 | 35.9 | 43.3 | 48.2 | 47.4 | 40.9 | 30.0 | 20.6 | 14.4 | 30.1 |
| Highest Mean Min. Temperature (F) | 20.5 | 24.1 | 30.5 | 32.0 | 41.9 | 46.9 | 51.2 | 50.5 | 46.0 | 36.0 | 26.8 | 21.1 | 51.2 |
| Year Highest Occurred | 1998 | 1976 | 1974 | 1986 | 1996 | 1978 | 1998 | 1977 | 1997 | 1972 | 1978 | 1996 | 1998 |
| Lowest Mean Min. Temperature (F) | 9.2 | 12.0 | 14.0 | 16.3 | 31.0 | 38.1 | 43.9 | 44.4 | 37.5 | 24.5 | 12.4 | 1.5 | 1.5 |
| Year Lowest Occurred | 1982 | 1983 | 1980 | 1982 | 1981 | 1983 | 1987 | 1990 | 1987 | 1980 | 1976 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.38 | 0.34 | 0.74 | 1.14 | 2.08 | 2.28 | 3.60 | 3.83 | 2.03 | 1.13 | 0.65 | 0.47 | 18.67 |
| Highest Precipitation (in.) | 1.12 | 1.54 | 2.02 | 4.54 | 6.15 | 8.09 | 8.45 | 8.49 | 4.53 | 4.55 | 3.59 | 1.56 | 8.49 |
| Year Highest Occurred | 1979 | 1987 | 1998 | 1999 | 1994 | 1988 | 1971 | 1981 | 1990 | 1998 | 1978 | 1987 | 1981 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.54 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1997 | 1996 | 1998 | 1998 | 1980 | 1973 | 2000 | 1995 | 1999 | 1998 | 1998 |
| Heating Degree Days (F) | 1096. | 897. | 854. | 632. | 387. | 145. | 52. | 92. | 244. | 557. | 853. | 1080. | 6889. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 18. | 36. | 22. | 3. | 0. | 0. | 0. | 81. |