| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.6 | 42.4 | 51.1 | 61.3 | 70.7 | 82.3 | 89.8 | 88.0 | 78.2 | 64.8 | 48.3 | 38.7 | 62.7 |
| Highest Mean Max. Temperature (F) | 45.0 | 49.6 | 60.0 | 72.3 | 78.6 | 88.0 | 94.4 | 91.3 | 83.7 | 75.0 | 58.6 | 45.9 | 94.4 |
| Year Highest Occurred | 1994 | 2000 | 1972 | 1992 | 1992 | 1988 | 1989 | 1994 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Max. Temperature (F) | 27.7 | 33.8 | 46.0 | 52.6 | 63.8 | 76.1 | 83.5 | 85.1 | 72.9 | 55.6 | 39.3 | 29.9 | 27.7 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1998 | 1975 | 1993 | 1979 | 1986 | 1984 | 2000 | 1990 | 1984 |
| Mean Temperature (F) | 26.2 | 31.1 | 39.6 | 47.7 | 56.0 | 65.7 | 72.8 | 71.1 | 61.5 | 49.5 | 36.7 | 28.2 | 48.8 |
| Highest Mean Temperature (F) | 33.7 | 38.9 | 45.1 | 53.8 | 60.8 | 71.5 | 76.8 | 75.9 | 67.6 | 55.8 | 43.0 | 34.9 | 76.8 |
| Year Highest Occurred | 1994 | 2000 | 1986 | 1992 | 1997 | 1994 | 1988 | 1994 | 1990 | 1988 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 17.4 | 20.3 | 35.0 | 41.6 | 51.6 | 61.1 | 67.1 | 67.5 | 57.7 | 44.5 | 29.1 | 18.1 | 17.4 |
| Year Lowest Occurred | 1973 | 1985 | 1977 | 1975 | 1975 | 1975 | 1993 | 1974 | 1971 | 1984 | 1994 | 1990 | 1973 |
| Mean Min. Temperature (F) | 15.7 | 19.8 | 28.1 | 34.1 | 41.3 | 49.0 | 55.7 | 54.2 | 44.7 | 34.1 | 25.0 | 17.6 | 34.9 |
| Highest Mean Min. Temperature (F) | 25.4 | 28.6 | 32.9 | 38.2 | 50.3 | 59.3 | 62.4 | 60.5 | 51.6 | 39.8 | 28.7 | 24.5 | 62.4 |
| Year Highest Occurred | 2000 | 1983 | 1983 | 1990 | 1997 | 1997 | 1999 | 1994 | 1998 | 1972 | 1988 | 1995 | 1999 |
| Lowest Mean Min. Temperature (F) | 3.7 | 6.6 | 21.2 | 30.3 | 36.8 | 43.0 | 50.7 | 47.6 | 38.7 | 30.4 | 15.2 | 6.2 | 3.7 |
| Year Lowest Occurred | 1973 | 1985 | 1977 | 1982 | 1975 | 1992 | 1993 | 1974 | 1996 | 1999 | 1994 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.98 | 1.00 | 1.12 | 1.30 | 1.40 | 0.66 | 0.67 | 0.98 | 1.15 | 1.33 | 1.13 | 0.69 | 12.41 |
| Highest Precipitation (in.) | 2.23 | 3.12 | 3.72 | 3.40 | 3.77 | 3.02 | 1.80 | 2.96 | 5.63 | 3.45 | 3.79 | 1.99 | 5.63 |
| Year Highest Occurred | 1980 | 1986 | 1978 | 1999 | 1981 | 1998 | 1999 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.09 | 0.03 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.17 | 0.04 | 0.00 |
| Year Lowest Occurred | 1988 | 1985 | 1974 | 1987 | 1972 | 1994 | 1992 | 1996 | 1979 | 1999 | 1993 | 2000 | 1988 |
| Heating Degree Days (F) | 1204. | 950. | 787. | 518. | 293. | 85. | 8. | 13. | 148. | 482. | 851. | 1142. | 6481. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 104. | 248. | 202. | 42. | 0. | 0. | 0. | 610. |