| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.3 | 49.1 | 55.1 | 62.8 | 70.6 | 80.0 | 83.6 | 81.3 | 75.9 | 66.4 | 52.9 | 45.6 | 64.1 |
| Highest Mean Max. Temperature (F) | 54.7 | 56.7 | 64.4 | 70.3 | 78.4 | 88.2 | 90.0 | 85.5 | 81.7 | 70.8 | 62.5 | 56.4 | 90.0 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1981 | 1996 | 1990 | 1980 | 2000 | 1983 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 36.1 | 43.2 | 48.4 | 52.4 | 66.0 | 75.1 | 80.3 | 77.4 | 72.5 | 57.0 | 43.1 | 37.7 | 36.1 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1980 | 1983 | 1991 | 1993 | 1996 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 31.2 | 34.6 | 40.4 | 47.5 | 56.0 | 65.6 | 70.0 | 68.2 | 61.8 | 51.5 | 38.9 | 32.0 | 49.8 |
| Highest Mean Temperature (F) | 38.2 | 40.4 | 48.1 | 54.9 | 62.3 | 71.7 | 74.7 | 71.9 | 66.6 | 54.3 | 45.2 | 41.0 | 74.7 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1981 | 1996 | 1990 | 1980 | 2000 | 1983 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 21.2 | 29.1 | 36.0 | 39.5 | 52.0 | 61.3 | 67.1 | 65.2 | 58.0 | 45.8 | 30.8 | 24.2 | 21.2 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1983 | 1983 | 1975 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 17.1 | 20.1 | 25.6 | 32.2 | 41.4 | 51.1 | 56.3 | 55.1 | 47.7 | 36.6 | 24.9 | 18.3 | 35.5 |
| Highest Mean Min. Temperature (F) | 23.6 | 24.5 | 31.7 | 39.5 | 46.2 | 55.2 | 59.3 | 58.6 | 51.7 | 38.9 | 30.3 | 25.5 | 59.3 |
| Year Highest Occurred | 1999 | 2000 | 1989 | 1981 | 1996 | 1990 | 1980 | 1983 | 1997 | 1988 | 1981 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 6.3 | 15.0 | 20.9 | 26.6 | 37.0 | 45.7 | 53.1 | 52.0 | 43.5 | 31.5 | 18.5 | 10.6 | 6.3 |
| Year Lowest Occurred | 1979 | 1989 | 1988 | 1973 | 1975 | 1975 | 1975 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.43 | 0.48 | 1.09 | 1.06 | 2.25 | 2.11 | 3.03 | 2.94 | 1.99 | 1.05 | 0.85 | 0.54 | 17.82 |
| Highest Precipitation (in.) | 1.25 | 2.09 | 3.29 | 2.97 | 5.28 | 5.29 | 5.58 | 6.77 | 5.41 | 4.89 | 1.98 | 1.40 | 6.77 |
| Year Highest Occurred | 1990 | 1987 | 1993 | 1985 | 1979 | 1986 | 1972 | 1991 | 1977 | 1984 | 1993 | 1991 | 1991 |
| Lowest Precipitation (in.) | 0.07 | 0.00 | 0.08 | 0.02 | 0.34 | 0.06 | 0.51 | 0.50 | 0.29 | 0.00 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1972 | 1994 | 1989 | 1972 | 1974 | 1990 | 1980 | 1976 | 2000 | 1992 | 1989 | 1985 | 1994 |
| Heating Degree Days (F) | 1048. | 851. | 764. | 525. | 290. | 76. | 6. | 21. | 130. | 419. | 784. | 1025. | 5939. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 92. | 159. | 121. | 34. | 0. | 0. | 0. | 417. |