| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.5 | 36.6 | 47.6 | 58.3 | 67.1 | 77.3 | 85.5 | 84.2 | 74.7 | 61.8 | 43.4 | 32.5 | 58.3 |
| Highest Mean Max. Temperature (F) | 38.7 | 48.6 | 56.5 | 67.7 | 75.9 | 84.3 | 90.8 | 89.5 | 81.9 | 71.4 | 54.3 | 39.5 | 90.8 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1987 | 1992 | 1988 | 1988 | 2000 | 1990 | 1988 | 1999 | 1995 | 1988 |
| Lowest Mean Max. Temperature (F) | 20.2 | 26.3 | 37.5 | 47.9 | 61.0 | 70.3 | 75.9 | 78.4 | 66.7 | 54.7 | 36.4 | 23.8 | 20.2 |
| Year Lowest Occurred | 1979 | 1984 | 1985 | 1975 | 1975 | 1998 | 1993 | 1976 | 1986 | 1984 | 1994 | 1990 | 1979 |
| Mean Temperature (F) | 23.1 | 27.5 | 36.8 | 45.2 | 52.8 | 61.1 | 67.9 | 66.8 | 57.8 | 46.9 | 33.7 | 24.3 | 45.3 |
| Highest Mean Temperature (F) | 31.0 | 37.2 | 43.3 | 51.1 | 58.9 | 67.1 | 72.1 | 71.2 | 64.6 | 54.4 | 40.5 | 31.0 | 72.1 |
| Year Highest Occurred | 1994 | 1995 | 1986 | 1992 | 1992 | 1988 | 1989 | 2000 | 1990 | 1988 | 1995 | 1995 | 1989 |
| Lowest Mean Temperature (F) | 11.3 | 17.3 | 27.7 | 37.8 | 47.3 | 57.0 | 59.5 | 62.1 | 53.0 | 42.1 | 27.2 | 13.9 | 11.3 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1975 | 1998 | 1993 | 1976 | 1971 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 15.6 | 18.4 | 25.9 | 32.0 | 38.5 | 44.9 | 50.3 | 49.4 | 40.9 | 32.0 | 24.0 | 16.1 | 32.3 |
| Highest Mean Min. Temperature (F) | 23.6 | 27.0 | 30.7 | 35.9 | 41.8 | 49.8 | 53.8 | 53.7 | 47.5 | 37.4 | 29.6 | 25.3 | 53.8 |
| Year Highest Occurred | 1998 | 2000 | 1986 | 1989 | 1992 | 1988 | 1989 | 1983 | 1998 | 1988 | 1995 | 1977 | 1989 |
| Lowest Mean Min. Temperature (F) | 2.4 | 7.3 | 17.9 | 27.7 | 33.6 | 41.8 | 43.0 | 45.0 | 36.8 | 28.2 | 16.3 | 4.0 | 2.4 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1975 | 1976 | 1993 | 1974 | 1971 | 1976 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.81 | 1.32 | 1.78 | 1.27 | 2.15 | 0.95 | 0.98 | 1.46 | 1.02 | 1.05 | 1.41 | 1.75 | 16.95 |
| Highest Precipitation (in.) | 5.01 | 3.78 | 4.01 | 2.90 | 4.67 | 3.45 | 2.25 | 3.54 | 3.10 | 2.17 | 3.94 | 8.41 | 8.41 |
| Year Highest Occurred | 1998 | 1986 | 1989 | 1990 | 1996 | 1993 | 1993 | 1983 | 1982 | 1981 | 1988 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.21 | 0.21 | 0.18 | 0.22 | 0.68 | 0.05 | 0.19 | 0.00 | 0.00 | 0.00 | 0.04 | 0.10 | 0.00 |
| Year Lowest Occurred | 1992 | 1995 | 1994 | 1977 | 1972 | 2000 | 2000 | 1996 | 1987 | 1988 | 1976 | 1989 | 1996 |
| Heating Degree Days (F) | 1300. | 1050. | 876. | 597. | 381. | 159. | 45. | 56. | 234. | 562. | 939. | 1262. | 7461. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 43. | 135. | 112. | 19. | 0. | 0. | 0. | 311. |