| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.6 | 47.1 | 56.7 | 65.0 | 74.2 | 86.2 | 92.9 | 90.7 | 81.3 | 68.0 | 52.2 | 42.2 | 66.4 |
| Highest Mean Max. Temperature (F) | 50.9 | 56.6 | 67.7 | 73.7 | 82.0 | 92.5 | 97.0 | 94.9 | 87.4 | 75.9 | 66.6 | 51.3 | 97.0 |
| Year Highest Occurred | 1998 | 1995 | 1997 | 1992 | 1997 | 1996 | 1994 | 1994 | 1979 | 1999 | 1999 | 1977 | 1994 |
| Lowest Mean Max. Temperature (F) | 27.6 | 38.4 | 47.7 | 55.4 | 67.8 | 79.0 | 89.1 | 88.8 | 74.3 | 59.4 | 44.2 | 30.7 | 27.6 |
| Year Lowest Occurred | 1973 | 1989 | 1973 | 1975 | 1975 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1972 | 1973 |
| Mean Temperature (F) | 28.1 | 33.7 | 41.6 | 48.3 | 56.6 | 66.7 | 74.2 | 72.6 | 63.1 | 50.6 | 37.6 | 28.6 | 50.1 |
| Highest Mean Temperature (F) | 37.8 | 41.1 | 47.3 | 55.4 | 61.3 | 71.8 | 77.0 | 76.6 | 67.0 | 56.3 | 45.7 | 36.7 | 77.0 |
| Year Highest Occurred | 1998 | 1995 | 1997 | 1992 | 1997 | 1994 | 1996 | 1994 | 1990 | 1988 | 1999 | 1977 | 1996 |
| Lowest Mean Temperature (F) | 15.1 | 25.2 | 33.4 | 40.6 | 50.6 | 61.4 | 71.3 | 69.3 | 57.9 | 44.9 | 30.7 | 16.7 | 15.1 |
| Year Lowest Occurred | 1973 | 1989 | 1976 | 1975 | 1975 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1972 | 1973 |
| Mean Min. Temperature (F) | 15.5 | 20.2 | 26.4 | 31.6 | 38.9 | 47.1 | 55.4 | 54.5 | 44.9 | 33.1 | 23.0 | 15.0 | 33.8 |
| Highest Mean Min. Temperature (F) | 26.4 | 27.6 | 32.4 | 37.1 | 43.9 | 51.2 | 58.8 | 58.7 | 49.8 | 39.0 | 27.4 | 23.9 | 58.8 |
| Year Highest Occurred | 2000 | 1998 | 1978 | 1992 | 2000 | 1994 | 1981 | 1971 | 1997 | 1972 | 1996 | 1996 | 1981 |
| Lowest Mean Min. Temperature (F) | 2.5 | 11.6 | 16.8 | 25.7 | 33.3 | 43.6 | 51.0 | 49.7 | 39.8 | 29.0 | 17.1 | 2.6 | 2.5 |
| Year Lowest Occurred | 1973 | 1984 | 1976 | 1975 | 1975 | 1979 | 1993 | 1976 | 1973 | 1975 | 1994 | 1972 | 1973 |
| Mean Precipitation (in.) | 0.73 | 0.77 | 1.21 | 0.99 | 0.94 | 0.44 | 0.76 | 1.04 | 0.92 | 1.12 | 0.77 | 0.58 | 10.27 |
| Highest Precipitation (in.) | 2.83 | 1.95 | 2.85 | 2.28 | 2.38 | 1.61 | 1.78 | 3.75 | 3.64 | 3.26 | 2.21 | 2.21 | 3.75 |
| Year Highest Occurred | 1993 | 2000 | 1992 | 1973 | 1995 | 1998 | 1985 | 1984 | 1982 | 2000 | 1978 | 1972 | 1984 |
| Lowest Precipitation (in.) | 0.05 | 0.01 | 0.00 | 0.07 | 0.01 | 0.00 | 0.03 | 0.09 | 0.00 | 0.02 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1992 | 1974 | 1996 | 2000 | 1985 | 1979 | 1995 | 1995 | 1989 | 1997 |
| Heating Degree Days (F) | 1144. | 879. | 726. | 503. | 280. | 66. | 1. | 4. | 112. | 451. | 821. | 1129. | 6116. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 18. | 115. | 286. | 239. | 54. | 2. | 0. | 0. | 715. |