| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.6 | 47.1 | 55.9 | 63.8 | 72.5 | 83.2 | 89.1 | 87.3 | 79.5 | 67.8 | 52.0 | 42.2 | 65.1 |
| Highest Mean Max. Temperature (F) | 47.9 | 56.8 | 64.3 | 71.5 | 79.6 | 88.3 | 92.3 | 89.8 | 84.9 | 73.6 | 61.8 | 53.6 | 92.3 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 2000 | 1984 | 1974 | 1979 | 1996 | 1979 | 1999 | 1999 | 1980 | 1979 |
| Lowest Mean Max. Temperature (F) | 29.2 | 38.1 | 49.6 | 55.1 | 65.6 | 76.5 | 86.1 | 85.1 | 73.5 | 59.8 | 42.6 | 33.9 | 29.2 |
| Year Lowest Occurred | 1989 | 1989 | 1973 | 1975 | 1995 | 1995 | 1993 | 1993 | 1986 | 1984 | 2000 | 1990 | 1989 |
| Mean Temperature (F) | 28.1 | 33.7 | 41.2 | 47.5 | 55.6 | 64.5 | 70.7 | 69.2 | 60.9 | 49.7 | 37.5 | 28.9 | 49.0 |
| Highest Mean Temperature (F) | 36.5 | 40.1 | 45.4 | 53.4 | 61.1 | 68.1 | 73.0 | 73.0 | 64.9 | 54.0 | 42.7 | 37.2 | 73.0 |
| Year Highest Occurred | 2000 | 1995 | 1974 | 1992 | 1984 | 1994 | 1996 | 2000 | 1983 | 1988 | 1999 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 14.2 | 24.8 | 35.3 | 40.8 | 51.5 | 60.2 | 67.4 | 66.6 | 57.0 | 45.1 | 30.8 | 19.6 | 14.2 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1975 | 1975 | 1998 | 1993 | 1975 | 1986 | 1984 | 1979 | 1990 | 1989 |
| Mean Min. Temperature (F) | 15.5 | 20.2 | 26.5 | 31.1 | 38.6 | 45.8 | 52.2 | 51.0 | 42.2 | 31.6 | 22.9 | 15.6 | 32.8 |
| Highest Mean Min. Temperature (F) | 25.7 | 27.7 | 31.3 | 37.5 | 42.6 | 49.5 | 55.6 | 56.6 | 46.9 | 36.0 | 26.7 | 23.1 | 56.6 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1990 | 1984 | 1988 | 1999 | 2000 | 1983 | 1972 | 1983 | 1983 | 2000 |
| Lowest Mean Min. Temperature (F) | -0.9 | 8.8 | 18.6 | 26.4 | 33.3 | 42.0 | 48.7 | 46.0 | 37.1 | 27.4 | 15.8 | 5.2 | -0.9 |
| Year Lowest Occurred | 1989 | 1974 | 1976 | 1975 | 1975 | 1982 | 1993 | 1974 | 1971 | 1976 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.62 | 0.50 | 0.77 | 0.63 | 1.04 | 0.59 | 0.72 | 0.69 | 0.86 | 0.99 | 0.65 | 0.45 | 8.51 |
| Highest Precipitation (in.) | 1.79 | 1.66 | 1.90 | 2.09 | 2.85 | 2.72 | 2.40 | 1.53 | 2.92 | 3.16 | 2.09 | 1.45 | 3.16 |
| Year Highest Occurred | 1974 | 1998 | 1992 | 1973 | 1995 | 1984 | 1975 | 1982 | 1980 | 1981 | 1985 | 1983 | 1981 |
| Lowest Precipitation (in.) | 0.04 | 0.08 | 0.00 | 0.05 | 0.03 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1981 | 1988 | 1997 | 1982 | 1974 | 1996 | 1988 | 1976 | 1979 | 1973 | 1999 | 1986 | 1997 |
| Heating Degree Days (F) | 1147. | 879. | 739. | 527. | 300. | 83. | 4. | 13. | 148. | 475. | 827. | 1119. | 6261. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 67. | 179. | 141. | 24. | 0. | 0. | 0. | 418. |