| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.6 | 46.6 | 52.9 | 60.9 | 70.2 | 81.0 | 84.3 | 81.9 | 75.8 | 65.5 | 51.9 | 43.6 | 63.1 |
| Highest Mean Max. Temperature (F) | 52.5 | 53.2 | 62.9 | 72.8 | 78.3 | 87.5 | 88.7 | 84.4 | 80.2 | 72.9 | 61.9 | 52.1 | 88.7 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1984 | 1990 | 1971 | 1985 | 2000 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 33.5 | 38.2 | 43.5 | 53.3 | 65.1 | 76.3 | 79.9 | 78.9 | 70.6 | 55.8 | 44.4 | 36.4 | 33.5 |
| Year Lowest Occurred | 1979 | 1975 | 1973 | 1983 | 1995 | 1983 | 1992 | 1993 | 1986 | 1984 | 1972 | 1990 | 1979 |
| Mean Temperature (F) | 28.5 | 32.6 | 38.4 | 44.9 | 54.1 | 64.4 | 69.4 | 67.1 | 59.9 | 49.2 | 37.3 | 29.3 | 47.9 |
| Highest Mean Temperature (F) | 36.5 | 39.5 | 45.9 | 53.4 | 60.8 | 70.5 | 72.6 | 69.6 | 63.2 | 54.8 | 42.7 | 35.9 | 72.6 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1981 | 1980 | 1994 | 1998 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 20.9 | 25.6 | 31.6 | 38.6 | 48.9 | 60.1 | 66.9 | 65.1 | 56.3 | 44.1 | 31.9 | 22.7 | 20.9 |
| Year Lowest Occurred | 1979 | 1975 | 1977 | 1975 | 1975 | 1975 | 1992 | 1974 | 1985 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 14.4 | 18.6 | 23.9 | 28.9 | 38.0 | 47.8 | 54.4 | 52.3 | 43.9 | 32.9 | 22.6 | 14.9 | 32.7 |
| Highest Mean Min. Temperature (F) | 20.4 | 25.8 | 28.8 | 34.6 | 44.6 | 57.1 | 58.6 | 55.0 | 48.7 | 37.6 | 26.6 | 23.5 | 58.6 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1992 | 1996 | 1981 | 1980 | 1994 | 1997 | 1983 | 1978 | 1983 | 1980 |
| Lowest Mean Min. Temperature (F) | 6.9 | 11.4 | 17.1 | 22.5 | 31.3 | 41.0 | 48.1 | 49.2 | 40.3 | 28.1 | 14.8 | 8.1 | 6.9 |
| Year Lowest Occurred | 1976 | 1974 | 1976 | 1974 | 1975 | 1975 | 1979 | 1974 | 1979 | 1973 | 1975 | 1976 | 1976 |
| Mean Precipitation (in.) | 0.74 | 0.63 | 0.94 | 0.58 | 0.49 | 0.42 | 1.71 | 1.54 | 1.19 | 1.28 | 1.01 | 0.78 | 11.31 |
| Highest Precipitation (in.) | 3.79 | 1.70 | 2.64 | 2.66 | 2.80 | 2.04 | 4.36 | 4.02 | 2.95 | 5.54 | 2.93 | 2.62 | 5.54 |
| Year Highest Occurred | 1993 | 1980 | 1994 | 1985 | 1992 | 1997 | 1986 | 1982 | 1975 | 1972 | 1986 | 1983 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1995 | 1995 | 1997 | 1996 | 1998 | 1998 | 1993 | 1974 | 1993 | 1995 | 1994 | 1993 | 1995 |
| Heating Degree Days (F) | 1133. | 907. | 825. | 604. | 346. | 100. | 7. | 18. | 169. | 490. | 833. | 1109. | 6541. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 81. | 142. | 83. | 15. | 0. | 0. | 0. | 330. |