| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.3 | 37.3 | 45.4 | 54.9 | 65.4 | 76.3 | 82.4 | 80.9 | 71.8 | 59.5 | 42.6 | 34.7 | 57.0 |
| Highest Mean Max. Temperature (F) | 43.6 | 43.4 | 54.0 | 61.4 | 71.4 | 84.1 | 86.3 | 85.9 | 77.6 | 65.0 | 55.7 | 44.7 | 86.3 |
| Year Highest Occurred | 1981 | 1991 | 1986 | 2000 | 2000 | 1977 | 2000 | 1971 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 21.8 | 27.0 | 39.2 | 45.4 | 56.6 | 69.7 | 76.3 | 76.8 | 67.1 | 51.7 | 31.9 | 25.6 | 21.8 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1998 | 1992 | 1993 | 1986 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 22.2 | 25.6 | 33.5 | 41.3 | 50.6 | 60.2 | 66.1 | 64.4 | 55.4 | 44.5 | 30.9 | 23.2 | 43.2 |
| Highest Mean Temperature (F) | 28.6 | 31.6 | 39.6 | 47.2 | 55.3 | 65.4 | 68.7 | 67.7 | 60.0 | 49.1 | 39.3 | 33.1 | 68.7 |
| Year Highest Occurred | 1998 | 2000 | 1986 | 1992 | 2000 | 1988 | 1976 | 1983 | 1998 | 1988 | 1999 | 1980 | 1976 |
| Lowest Mean Temperature (F) | 9.4 | 15.4 | 27.7 | 34.5 | 45.6 | 54.8 | 61.5 | 61.2 | 51.9 | 38.7 | 19.2 | 15.5 | 9.4 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1998 | 1993 | 1974 | 1985 | 1984 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 11.1 | 13.9 | 21.5 | 27.6 | 35.8 | 44.0 | 49.8 | 47.9 | 39.0 | 29.4 | 19.1 | 11.7 | 29.2 |
| Highest Mean Min. Temperature (F) | 19.5 | 20.6 | 25.7 | 33.0 | 40.2 | 50.3 | 53.2 | 51.7 | 44.3 | 33.2 | 26.5 | 21.4 | 53.2 |
| Year Highest Occurred | 1999 | 1995 | 1992 | 1992 | 1992 | 1988 | 1998 | 1982 | 1998 | 1988 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | -3.1 | 3.8 | 15.9 | 22.3 | 31.8 | 39.9 | 44.5 | 41.8 | 33.0 | 25.3 | 6.4 | 4.4 | -3.1 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1984 | 1983 | 1998 | 1993 | 1974 | 1974 | 1976 | 2000 | 1990 | 1979 |
| Mean Precipitation (in.) | 0.45 | 0.46 | 0.73 | 1.00 | 1.61 | 0.93 | 1.18 | 0.90 | 0.89 | 0.98 | 0.65 | 0.45 | 10.23 |
| Highest Precipitation (in.) | 2.03 | 1.92 | 1.71 | 2.22 | 5.45 | 3.01 | 3.45 | 2.29 | 2.32 | 3.24 | 2.28 | 1.10 | 5.45 |
| Year Highest Occurred | 1980 | 1989 | 1988 | 1984 | 1995 | 1998 | 1984 | 1984 | 2000 | 1972 | 1983 | 1978 | 1995 |
| Lowest Precipitation (in.) | 0.02 | 0.13 | 0.20 | 0.06 | 0.09 | 0.00 | 0.15 | 0.22 | 0.15 | 0.01 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1983 | 1983 | 1997 | 1989 | 1974 | 1981 | 1979 | 1985 | 1979 | 1988 | 1976 | 1977 | 1981 |
| Heating Degree Days (F) | 1327. | 1104. | 979. | 713. | 448. | 173. | 42. | 71. | 292. | 637. | 1025. | 1296. | 8107. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 27. | 76. | 51. | 5. | 0. | 0. | 0. | 159. |