| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.5 | 40.8 | 46.2 | 53.3 | 62.1 | 73.1 | 77.9 | 75.7 | 69.5 | 59.5 | 45.8 | 38.6 | 56.7 |
| Highest Mean Max. Temperature (F) | 47.2 | 47.7 | 54.1 | 60.5 | 70.7 | 79.3 | 83.4 | 80.3 | 74.6 | 66.1 | 56.8 | 47.0 | 83.4 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 1996 | 1996 | 2000 | 1995 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 29.4 | 36.9 | 38.2 | 45.1 | 57.1 | 68.2 | 72.5 | 72.1 | 61.2 | 47.4 | 39.1 | 31.0 | 29.4 |
| Year Lowest Occurred | 1979 | 1979 | 1973 | 1983 | 1980 | 1983 | 1986 | 1990 | 1986 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 21.9 | 25.1 | 31.1 | 38.6 | 47.1 | 56.4 | 61.5 | 60.1 | 53.7 | 44.3 | 32.2 | 24.5 | 41.4 |
| Highest Mean Temperature (F) | 29.8 | 32.1 | 38.3 | 44.0 | 52.9 | 61.4 | 64.9 | 63.8 | 57.8 | 49.4 | 39.5 | 32.2 | 64.9 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 1996 | 1996 | 1996 | 1995 | 1998 | 1988 | 1999 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 15.1 | 19.4 | 25.8 | 31.6 | 43.8 | 53.2 | 58.9 | 57.3 | 48.6 | 36.0 | 26.5 | 18.1 | 15.1 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1983 | 1975 | 1983 | 1992 | 1990 | 1986 | 1984 | 1979 | 1990 | 1979 |
| Mean Min. Temperature (F) | 6.2 | 9.3 | 16.0 | 23.8 | 32.1 | 39.7 | 45.1 | 44.5 | 37.9 | 29.1 | 18.5 | 10.3 | 26.0 |
| Highest Mean Min. Temperature (F) | 12.3 | 16.4 | 22.6 | 28.7 | 35.1 | 43.4 | 48.6 | 47.7 | 41.6 | 33.2 | 22.1 | 17.3 | 48.6 |
| Year Highest Occurred | 1999 | 1995 | 1989 | 1989 | 1996 | 1996 | 1998 | 1983 | 1997 | 1972 | 1999 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.7 | 1.2 | 10.1 | 18.1 | 29.5 | 35.6 | 41.7 | 41.4 | 34.6 | 24.6 | 13.3 | 4.4 | 0.7 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1983 | 1975 | 1998 | 1987 | 1974 | 1985 | 1984 | 1979 | 1990 | 1979 |
| Mean Precipitation (in.) | 2.25 | 2.21 | 2.55 | 1.89 | 1.48 | 1.19 | 3.07 | 3.99 | 3.27 | 2.94 | 2.74 | 1.97 | 29.55 |
| Highest Precipitation (in.) | 6.21 | 6.14 | 5.38 | 5.17 | 4.15 | 3.60 | 6.77 | 8.70 | 6.63 | 9.54 | 6.25 | 7.28 | 9.54 |
| Year Highest Occurred | 1993 | 1993 | 1995 | 1999 | 1992 | 1988 | 1999 | 1999 | 1997 | 1972 | 1985 | 1984 | 1972 |
| Lowest Precipitation (in.) | 0.16 | 0.17 | 0.20 | 0.11 | 0.03 | 0.07 | 0.43 | 0.82 | 1.13 | 0.02 | 0.08 | 0.01 | 0.01 |
| Year Lowest Occurred | 1986 | 1972 | 1997 | 1991 | 1996 | 1982 | 1993 | 1985 | 1989 | 1995 | 1999 | 1989 | 1989 |
| Heating Degree Days (F) | 1337. | 1118. | 1051. | 794. | 556. | 264. | 121. | 160. | 339. | 641. | 985. | 1257. | 8623. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 12. | 8. | 0. | 0. | 0. | 0. | 26. |