| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.0 | 54.3 | 59.2 | 64.7 | 71.1 | 78.2 | 85.5 | 86.5 | 82.8 | 70.3 | 55.4 | 49.1 | 67.3 |
| Highest Mean Max. Temperature (F) | 54.2 | 59.2 | 65.2 | 70.5 | 78.6 | 84.1 | 91.9 | 90.5 | 91.1 | 77.5 | 61.0 | 53.8 | 91.9 |
| Year Highest Occurred | 1981 | 1991 | 1988 | 1987 | 1992 | 1985 | 1996 | 1974 | 1974 | 1987 | 1976 | 1981 | 1996 |
| Lowest Mean Max. Temperature (F) | 47.5 | 48.7 | 53.1 | 59.1 | 63.0 | 72.3 | 77.4 | 80.4 | 73.9 | 63.0 | 49.0 | 42.9 | 42.9 |
| Year Lowest Occurred | 1982 | 1989 | 1991 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 44.1 | 46.7 | 49.7 | 53.1 | 58.5 | 64.3 | 69.7 | 70.2 | 66.6 | 58.1 | 48.5 | 43.6 | 56.1 |
| Highest Mean Temperature (F) | 48.3 | 50.3 | 54.3 | 57.0 | 63.1 | 67.6 | 72.7 | 72.9 | 71.1 | 63.1 | 52.3 | 48.9 | 72.9 |
| Year Highest Occurred | 1978 | 1995 | 1986 | 1990 | 1992 | 1985 | 1996 | 1972 | 1974 | 1987 | 1981 | 1981 | 1972 |
| Lowest Mean Temperature (F) | 41.1 | 41.1 | 44.9 | 48.0 | 53.1 | 60.5 | 65.0 | 67.0 | 61.7 | 54.6 | 42.1 | 36.2 | 36.2 |
| Year Lowest Occurred | 1982 | 1989 | 1991 | 1975 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 38.2 | 39.0 | 40.1 | 41.4 | 45.9 | 50.4 | 53.8 | 53.8 | 50.4 | 45.8 | 41.6 | 38.1 | 44.9 |
| Highest Mean Min. Temperature (F) | 43.7 | 43.5 | 44.7 | 45.3 | 49.3 | 52.7 | 56.0 | 56.6 | 54.0 | 49.1 | 46.5 | 44.2 | 56.6 |
| Year Highest Occurred | 1978 | 1996 | 1993 | 1990 | 1987 | 1977 | 1972 | 1983 | 1979 | 1988 | 1981 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 34.5 | 33.4 | 34.7 | 36.9 | 41.5 | 46.4 | 50.3 | 51.5 | 47.2 | 42.0 | 34.7 | 29.6 | 29.6 |
| Year Lowest Occurred | 1991 | 1989 | 1977 | 1975 | 1977 | 1976 | 1999 | 1975 | 1993 | 1994 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 12.90 | 11.38 | 10.30 | 4.46 | 2.05 | 0.65 | 0.09 | 0.37 | 1.31 | 3.93 | 9.78 | 11.18 | 68.40 |
| Highest Precipitation (in.) | 38.65 | 31.09 | 28.73 | 14.48 | 12.74 | 2.94 | 1.02 | 4.38 | 7.80 | 11.22 | 31.13 | 33.62 | 38.65 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1990 | 1988 | 1974 | 1983 | 1986 | 1975 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.82 | 0.13 | 1.10 | 0.64 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.15 | 0.34 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1990 | 1982 | 1999 | 2000 | 2000 | 1999 | 1978 | 1990 | 1989 | 1982 |
| Heating Degree Days (F) | 649. | 513. | 477. | 359. | 216. | 73. | 18. | 5. | 47. | 228. | 495. | 663. | 3743. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 52. | 163. | 164. | 95. | 13. | 0. | 0. | 500. |