| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.5 | 48.4 | 53.2 | 58.4 | 64.8 | 70.5 | 77.4 | 78.0 | 72.8 | 62.2 | 50.0 | 43.8 | 60.3 |
| Highest Mean Max. Temperature (F) | 47.9 | 54.3 | 60.2 | 64.1 | 73.9 | 76.5 | 83.4 | 82.4 | 78.9 | 68.0 | 55.2 | 47.5 | 83.4 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1995 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 36.4 | 41.0 | 47.1 | 52.7 | 59.4 | 65.1 | 70.3 | 73.1 | 66.0 | 56.1 | 42.5 | 37.7 | 36.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 38.1 | 40.9 | 44.2 | 48.1 | 53.6 | 58.8 | 63.8 | 64.1 | 59.9 | 51.3 | 42.9 | 37.9 | 50.3 |
| Highest Mean Temperature (F) | 42.4 | 46.4 | 48.7 | 52.6 | 59.5 | 62.4 | 67.6 | 66.8 | 63.3 | 55.6 | 48.8 | 41.1 | 67.6 |
| Year Highest Occurred | 1995 | 1991 | 1992 | 1989 | 1992 | 1992 | 1996 | 1977 | 1998 | 1988 | 1995 | 1979 | 1996 |
| Lowest Mean Temperature (F) | 29.6 | 33.2 | 39.2 | 42.7 | 49.3 | 54.5 | 60.1 | 59.2 | 55.6 | 47.1 | 35.9 | 31.1 | 29.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1971 | 1986 | 1973 | 1971 | 1971 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 31.6 | 33.3 | 35.2 | 37.7 | 42.4 | 47.0 | 50.2 | 50.1 | 47.0 | 40.3 | 35.7 | 31.9 | 40.2 |
| Highest Mean Min. Temperature (F) | 37.0 | 38.5 | 39.0 | 41.9 | 47.6 | 49.8 | 54.0 | 53.4 | 51.9 | 46.0 | 42.3 | 35.5 | 54.0 |
| Year Highest Occurred | 1995 | 1991 | 1993 | 1992 | 1993 | 1982 | 1998 | 1999 | 1995 | 1988 | 1995 | 1995 | 1998 |
| Lowest Mean Min. Temperature (F) | 22.7 | 25.3 | 31.3 | 32.6 | 39.2 | 43.5 | 46.3 | 42.6 | 43.1 | 36.4 | 28.9 | 24.5 | 22.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1976 | 1973 | 1973 | 1971 | 1971 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 11.24 | 9.65 | 7.59 | 4.62 | 2.89 | 1.53 | 0.49 | 0.66 | 1.79 | 4.15 | 10.71 | 12.44 | 67.76 |
| Highest Precipitation (in.) | 19.90 | 24.49 | 17.02 | 9.99 | 6.07 | 4.19 | 1.63 | 1.80 | 5.07 | 12.14 | 27.98 | 27.63 | 27.98 |
| Year Highest Occurred | 1974 | 1999 | 1983 | 1993 | 1993 | 1985 | 1974 | 1977 | 1997 | 1997 | 1973 | 1996 | 1973 |
| Lowest Precipitation (in.) | 0.42 | 2.25 | 1.37 | 0.98 | 0.27 | 0.19 | 0.00 | 0.00 | 0.00 | 0.23 | 1.79 | 2.41 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1977 | 1992 | 1987 | 1998 | 2000 | 1975 | 1974 | 1993 | 1976 | 1998 |
| Heating Degree Days (F) | 835. | 677. | 645. | 510. | 356. | 198. | 91. | 78. | 178. | 427. | 665. | 841. | 5501. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 11. | 54. | 49. | 24. | 0. | 0. | 0. | 139. |