| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.0 | 49.4 | 54.7 | 61.3 | 70.5 | 81.9 | 87.7 | 85.8 | 77.8 | 67.1 | 53.5 | 46.5 | 65.2 |
| Highest Mean Max. Temperature (F) | 57.5 | 56.2 | 62.6 | 70.2 | 77.0 | 88.8 | 90.7 | 90.4 | 83.3 | 72.2 | 66.6 | 56.6 | 90.7 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1974 | 1990 | 1974 | 1995 | 1998 | 1975 | 1999 | 1980 | 1974 |
| Lowest Mean Max. Temperature (F) | 34.6 | 37.1 | 47.6 | 54.2 | 60.9 | 75.2 | 84.0 | 82.3 | 73.1 | 56.3 | 43.8 | 32.5 | 32.5 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1983 | 1995 | 1983 | 1990 | 1979 | 1999 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 30.2 | 34.0 | 40.0 | 47.0 | 56.3 | 66.8 | 72.8 | 71.3 | 62.5 | 51.3 | 38.4 | 30.9 | 50.1 |
| Highest Mean Temperature (F) | 39.4 | 39.6 | 47.2 | 55.3 | 60.9 | 71.4 | 75.8 | 75.1 | 68.8 | 55.9 | 49.5 | 41.5 | 75.8 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1994 | 1977 | 2000 | 2000 | 1998 | 1992 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 17.8 | 23.0 | 34.4 | 40.5 | 48.8 | 61.4 | 69.9 | 67.3 | 57.9 | 45.0 | 31.3 | 17.7 | 17.7 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1997 | 1995 | 1983 | 1990 | 1993 | 1993 | 1984 | 1979 | 1983 | 1983 |
| Mean Min. Temperature (F) | 14.3 | 18.5 | 25.2 | 32.6 | 42.1 | 51.7 | 57.8 | 56.8 | 47.1 | 35.5 | 23.3 | 15.3 | 35.0 |
| Highest Mean Min. Temperature (F) | 22.4 | 25.0 | 31.7 | 40.3 | 46.5 | 57.7 | 61.8 | 61.7 | 54.3 | 40.8 | 32.3 | 26.4 | 61.8 |
| Year Highest Occurred | 1990 | 2000 | 1986 | 1981 | 1994 | 1977 | 2000 | 2000 | 1998 | 1974 | 1999 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 1.1 | 8.9 | 17.2 | 25.7 | 36.6 | 47.4 | 52.5 | 51.4 | 41.7 | 29.9 | 16.1 | 2.9 | 1.1 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1995 | 1995 | 1993 | 1993 | 1993 | 1995 | 1993 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.57 | 0.58 | 1.68 | 2.36 | 2.85 | 1.69 | 1.60 | 1.80 | 1.52 | 1.28 | 1.33 | 0.80 | 18.06 |
| Highest Precipitation (in.) | 1.46 | 1.80 | 5.64 | 6.10 | 7.96 | 3.82 | 5.05 | 4.86 | 3.67 | 5.98 | 3.48 | 2.14 | 7.96 |
| Year Highest Occurred | 1974 | 1987 | 1983 | 1999 | 1973 | 1983 | 1976 | 1984 | 1996 | 1984 | 1972 | 1987 | 1973 |
| Lowest Precipitation (in.) | 0.02 | 0.02 | 0.37 | 0.52 | 0.24 | 0.00 | 0.46 | 0.10 | 0.05 | 0.07 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1981 | 1992 | 1991 | 1992 | 1974 | 1980 | 1978 | 1973 | 1992 | 1988 | 1989 | 1991 | 1980 |
| Heating Degree Days (F) | 1080. | 870. | 776. | 542. | 286. | 67. | 2. | 9. | 135. | 427. | 798. | 1057. | 6049. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 16. | 121. | 243. | 204. | 59. | 1. | 0. | 0. | 644. |