| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.1 | 41.0 | 47.5 | 55.6 | 66.0 | 77.1 | 81.1 | 78.4 | 69.9 | 59.3 | 45.5 | 38.5 | 58.2 |
| Highest Mean Max. Temperature (F) | 46.1 | 49.3 | 55.5 | 63.6 | 75.3 | 81.8 | 87.0 | 82.2 | 76.5 | 64.0 | 57.2 | 48.7 | 87.0 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1981 | 1996 | 1996 | 1997 | 1995 | 1998 | 1988 | 1999 | 1980 | 1997 |
| Lowest Mean Max. Temperature (F) | 28.1 | 32.6 | 41.6 | 48.3 | 55.7 | 71.4 | 76.1 | 74.3 | 65.2 | 50.4 | 36.0 | 27.6 | 27.6 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1983 | 1995 | 1992 | 1990 | 1992 | 1971 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 26.0 | 29.4 | 34.8 | 42.2 | 51.9 | 61.5 | 66.4 | 64.5 | 56.6 | 46.2 | 33.4 | 27.0 | 45.0 |
| Highest Mean Temperature (F) | 33.3 | 35.9 | 40.6 | 48.8 | 58.3 | 64.8 | 69.5 | 67.9 | 62.7 | 50.3 | 41.5 | 35.6 | 69.5 |
| Year Highest Occurred | 1986 | 2000 | 1999 | 1981 | 1996 | 1990 | 2000 | 2000 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 15.3 | 21.4 | 30.5 | 35.9 | 44.7 | 57.2 | 62.2 | 60.5 | 52.1 | 41.3 | 26.6 | 18.2 | 15.3 |
| Year Lowest Occurred | 1979 | 1989 | 1984 | 1983 | 1995 | 1995 | 1992 | 1992 | 1971 | 1984 | 1992 | 1983 | 1979 |
| Mean Min. Temperature (F) | 13.9 | 17.8 | 22.0 | 28.7 | 37.8 | 45.8 | 51.7 | 50.5 | 43.2 | 33.1 | 21.2 | 15.5 | 31.8 |
| Highest Mean Min. Temperature (F) | 21.2 | 24.4 | 26.9 | 33.9 | 42.0 | 49.1 | 57.1 | 54.4 | 48.8 | 36.7 | 29.6 | 22.4 | 57.1 |
| Year Highest Occurred | 1999 | 2000 | 1999 | 1981 | 2000 | 1994 | 1999 | 2000 | 1998 | 1972 | 1998 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | 2.4 | 10.1 | 17.4 | 23.5 | 33.6 | 42.4 | 47.3 | 46.7 | 38.4 | 28.4 | 15.8 | 8.5 | 2.4 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1983 | 1995 | 1995 | 1992 | 1992 | 1993 | 1995 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 0.82 | 0.53 | 1.97 | 3.00 | 2.91 | 2.40 | 2.66 | 2.85 | 1.50 | 1.25 | 1.31 | 0.94 | 22.14 |
| Highest Precipitation (in.) | 2.23 | 1.54 | 5.68 | 12.34 | 6.72 | 5.39 | 5.00 | 6.36 | 3.47 | 5.38 | 4.47 | 2.53 | 12.34 |
| Year Highest Occurred | 1992 | 1997 | 1992 | 1999 | 1995 | 1997 | 1999 | 1997 | 1996 | 1997 | 1991 | 1999 | 1999 |
| Lowest Precipitation (in.) | 0.20 | 0.13 | 0.39 | 0.54 | 0.38 | 0.37 | 1.04 | 1.00 | 0.16 | 0.05 | 0.30 | 0.12 | 0.05 |
| Year Lowest Occurred | 1986 | 1972 | 1989 | 2000 | 1974 | 1980 | 1987 | 1989 | 1992 | 1988 | 1996 | 1994 | 1988 |
| Heating Degree Days (F) | 1210. | 997. | 938. | 686. | 411. | 139. | 44. | 68. | 262. | 582. | 950. | 1177. | 7464. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 31. | 88. | 51. | 9. | 0. | 0. | 0. | 182. |