| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 29.4 | 38.6 | 51.2 | 62.4 | 70.8 | 78.4 | 85.3 | 85.1 | 75.6 | 60.3 | 41.3 | 31.0 | 59.1 |
| Highest Mean Max. Temperature (F) | 36.4 | 47.9 | 60.4 | 67.3 | 76.9 | 84.9 | 94.1 | 90.2 | 83.4 | 65.7 | 46.5 | 36.9 | 94.1 |
| Year Highest Occurred | 1992 | 1995 | 1992 | 1977 | 1993 | 1992 | 1998 | 1986 | 1994 | 1987 | 1990 | 1997 | 1998 |
| Lowest Mean Max. Temperature (F) | 19.4 | 29.0 | 41.9 | 57.5 | 65.9 | 73.3 | 77.1 | 76.9 | 68.1 | 56.3 | 29.2 | 23.1 | 19.4 |
| Year Lowest Occurred | 1979 | 1975 | 1975 | 1972 | 1984 | 1976 | 1993 | 1976 | 1986 | 1975 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 23.0 | 30.4 | 40.6 | 49.6 | 57.6 | 64.6 | 71.0 | 70.5 | 61.5 | 47.8 | 34.6 | 25.0 | 48.0 |
| Highest Mean Temperature (F) | 30.7 | 37.4 | 47.9 | 54.4 | 63.8 | 71.7 | 79.1 | 73.5 | 67.6 | 52.6 | 39.5 | 31.1 | 79.1 |
| Year Highest Occurred | 1992 | 1998 | 1992 | 1994 | 1993 | 1992 | 1998 | 1977 | 1994 | 1988 | 1999 | 1979 | 1998 |
| Lowest Mean Temperature (F) | 12.1 | 19.6 | 33.0 | 44.2 | 52.9 | 60.2 | 65.3 | 65.4 | 54.3 | 44.9 | 22.7 | 16.2 | 12.1 |
| Year Lowest Occurred | 1979 | 1975 | 1971 | 1972 | 1974 | 1976 | 1993 | 1975 | 1972 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 16.6 | 22.2 | 30.0 | 36.7 | 44.4 | 50.7 | 56.6 | 55.8 | 47.3 | 35.3 | 27.9 | 19.0 | 36.9 |
| Highest Mean Min. Temperature (F) | 24.9 | 29.4 | 35.4 | 41.5 | 50.6 | 58.5 | 64.1 | 59.8 | 51.7 | 40.9 | 32.9 | 25.9 | 64.1 |
| Year Highest Occurred | 1992 | 1998 | 1992 | 1994 | 1993 | 1992 | 1998 | 1977 | 1994 | 1988 | 1999 | 1993 | 1998 |
| Lowest Mean Min. Temperature (F) | 4.8 | 10.2 | 23.6 | 30.9 | 39.8 | 47.1 | 51.4 | 52.3 | 39.4 | 30.8 | 16.1 | 8.4 | 4.8 |
| Year Lowest Occurred | 1979 | 1975 | 1971 | 1972 | 1974 | 1976 | 1972 | 1973 | 1972 | 1978 | 1985 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.16 | 1.24 | 1.00 | 1.11 | 1.08 | 1.22 | 0.80 | 0.65 | 0.54 | 0.76 | 1.45 | 1.82 | 12.83 |
| Highest Precipitation (in.) | 4.68 | 2.94 | 1.61 | 2.67 | 2.75 | 3.37 | 4.65 | 2.04 | 1.83 | 2.21 | 3.60 | 4.63 | 4.68 |
| Year Highest Occurred | 1995 | 1980 | 1974 | 1994 | 1977 | 1997 | 1992 | 1976 | 1996 | 1979 | 1973 | 1973 | 1995 |
| Lowest Precipitation (in.) | 0.12 | 0.13 | 0.03 | 0.04 | 0.07 | 0.04 | 0.00 | 0.02 | 0.00 | 0.01 | 0.00 | 0.26 | 0.00 |
| Year Lowest Occurred | 1977 | 1993 | 1979 | 1977 | 1992 | 1974 | 1999 | 1996 | 1987 | 1978 | 1976 | 1978 | 1999 |
| Heating Degree Days (F) | 1302. | 969. | 756. | 465. | 242. | 95. | 33. | 17. | 172. | 534. | 913. | 1239. | 6737. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 81. | 217. | 186. | 67. | 0. | 0. | 0. | 564. |