| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.7 | 46.8 | 55.6 | 63.0 | 71.2 | 78.3 | 86.4 | 86.1 | 78.2 | 64.7 | 48.6 | 40.3 | 63.3 |
| Highest Mean Max. Temperature (F) | 49.2 | 54.1 | 61.2 | 69.3 | 79.2 | 85.5 | 94.7 | 93.4 | 86.9 | 72.1 | 54.0 | 46.6 | 94.7 |
| Year Highest Occurred | 1999 | 1991 | 1992 | 2000 | 1992 | 1987 | 1985 | 1998 | 1998 | 1988 | 1990 | 1974 | 1985 |
| Lowest Mean Max. Temperature (F) | 26.7 | 37.5 | 50.1 | 56.9 | 64.6 | 71.0 | 78.2 | 79.0 | 69.6 | 58.7 | 36.9 | 26.8 | 26.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1976 | 1971 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 33.5 | 38.1 | 44.0 | 49.3 | 55.8 | 61.8 | 68.1 | 67.9 | 61.4 | 50.9 | 40.3 | 33.7 | 50.4 |
| Highest Mean Temperature (F) | 40.2 | 44.1 | 48.9 | 53.3 | 61.3 | 67.2 | 73.7 | 72.6 | 66.9 | 56.6 | 45.2 | 39.5 | 73.7 |
| Year Highest Occurred | 1994 | 1991 | 1986 | 1994 | 1997 | 1992 | 1985 | 1986 | 1998 | 1988 | 1995 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 18.0 | 28.0 | 39.0 | 43.1 | 50.4 | 56.9 | 62.4 | 62.8 | 55.6 | 47.4 | 28.8 | 22.2 | 18.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1976 | 1993 | 1980 | 1971 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 26.3 | 29.3 | 32.4 | 35.5 | 40.3 | 45.3 | 49.7 | 49.7 | 44.5 | 37.1 | 32.0 | 27.1 | 37.4 |
| Highest Mean Min. Temperature (F) | 33.5 | 37.0 | 37.6 | 40.2 | 46.9 | 49.3 | 53.8 | 54.2 | 48.9 | 41.0 | 36.7 | 34.2 | 54.2 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1992 | 1993 | 1982 | 1998 | 1977 | 1997 | 1992 | 1972 | 1973 | 1977 |
| Lowest Mean Min. Temperature (F) | 9.3 | 18.4 | 27.5 | 29.3 | 35.7 | 40.2 | 46.6 | 44.7 | 41.2 | 32.7 | 20.6 | 16.3 | 9.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1975 | 1976 | 2000 | 2000 | 1999 | 1974 | 1985 | 1990 | 1979 |
| Mean Precipitation (in.) | 2.07 | 1.51 | 1.27 | 0.96 | 0.84 | 0.62 | 0.33 | 0.45 | 0.54 | 0.91 | 1.83 | 2.04 | 13.37 |
| Highest Precipitation (in.) | 4.46 | 3.51 | 3.14 | 2.87 | 3.28 | 1.70 | 1.43 | 1.37 | 2.11 | 2.36 | 4.80 | 6.98 | 6.98 |
| Year Highest Occurred | 1995 | 1983 | 1983 | 1995 | 1998 | 1988 | 1995 | 1990 | 1982 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.12 | 0.17 | 0.12 | 0.07 | 0.11 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 | 0.25 | 0.00 |
| Year Lowest Occurred | 1985 | 1971 | 1973 | 1973 | 1976 | 1973 | 1984 | 2000 | 1999 | 1988 | 1976 | 1976 | 1984 |
| Heating Degree Days (F) | 978. | 755. | 651. | 473. | 297. | 140. | 50. | 46. | 160. | 438. | 741. | 970. | 5699. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 12. | 44. | 144. | 137. | 49. | 0. | 0. | 0. | 386. |