| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 51.2 | 57.4 | 60.7 | 66.8 | 74.5 | 83.5 | 90.6 | 90.0 | 85.0 | 75.0 | 59.1 | 49.5 | 70.3 |
| Highest Mean Max. Temperature (F) | 56.3 | 67.1 | 68.3 | 75.3 | 80.9 | 89.4 | 95.6 | 94.2 | 91.0 | 81.3 | 67.3 | 54.2 | 95.6 |
| Year Highest Occurred | 1984 | 1991 | 1972 | 1987 | 1992 | 1985 | 1988 | 1981 | 1974 | 1988 | 1995 | 1977 | 1988 |
| Lowest Mean Max. Temperature (F) | 44.9 | 48.9 | 51.3 | 57.6 | 61.4 | 75.5 | 85.7 | 83.5 | 76.3 | 69.1 | 48.0 | 41.9 | 41.9 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 41.4 | 45.3 | 47.9 | 52.5 | 59.1 | 66.4 | 72.5 | 72.2 | 67.9 | 59.3 | 47.4 | 40.4 | 56.0 |
| Highest Mean Temperature (F) | 46.5 | 51.7 | 53.2 | 58.3 | 65.5 | 71.2 | 76.0 | 75.5 | 72.2 | 64.2 | 54.2 | 44.3 | 76.0 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1987 | 1992 | 1977 | 1988 | 1971 | 1991 | 1991 | 1995 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 36.6 | 40.3 | 42.0 | 44.3 | 51.1 | 61.9 | 67.2 | 66.2 | 60.9 | 54.5 | 40.0 | 34.3 | 34.3 |
| Year Lowest Occurred | 1982 | 1990 | 1991 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1975 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 31.5 | 33.1 | 35.1 | 38.1 | 43.6 | 49.3 | 54.4 | 54.3 | 50.7 | 43.5 | 35.7 | 31.3 | 41.7 |
| Highest Mean Min. Temperature (F) | 37.0 | 37.5 | 39.7 | 43.4 | 50.0 | 53.8 | 57.4 | 57.6 | 54.6 | 48.8 | 41.0 | 37.7 | 57.6 |
| Year Highest Occurred | 1995 | 2000 | 1993 | 1990 | 1992 | 1977 | 1985 | 1992 | 1998 | 1991 | 1995 | 1996 | 1992 |
| Lowest Mean Min. Temperature (F) | 27.2 | 29.2 | 29.5 | 31.0 | 37.5 | 44.8 | 48.2 | 48.8 | 45.4 | 38.2 | 31.7 | 24.2 | 24.2 |
| Year Lowest Occurred | 1973 | 1990 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1975 | 1972 | 1972 |
| Mean Precipitation (in.) | 8.90 | 7.89 | 7.67 | 3.46 | 1.87 | 0.54 | 0.19 | 0.19 | 0.92 | 2.59 | 5.90 | 6.31 | 46.43 |
| Highest Precipitation (in.) | 21.36 | 24.74 | 19.41 | 10.09 | 8.33 | 1.96 | 3.57 | 3.30 | 4.52 | 7.07 | 19.33 | 17.11 | 24.74 |
| Year Highest Occurred | 1995 | 1986 | 1991 | 1978 | 1998 | 1995 | 1974 | 1976 | 1989 | 1975 | 1983 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.32 | 0.68 | 0.57 | 0.36 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.45 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1988 | 1994 | 1985 | 1992 | 1994 | 2000 | 2000 | 1995 | 1995 | 1995 | 1989 | 1992 |
| Heating Degree Days (F) | 733. | 554. | 532. | 384. | 222. | 63. | 7. | 7. | 48. | 217. | 529. | 762. | 4058. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 37. | 105. | 240. | 229. | 133. | 37. | 0. | 0. | 788. |