| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.7 | 52.2 | 60.0 | 68.7 | 76.8 | 86.4 | 91.1 | 89.0 | 81.7 | 71.4 | 57.7 | 48.0 | 69.1 |
| Highest Mean Max. Temperature (F) | 56.6 | 61.3 | 67.5 | 77.1 | 85.0 | 93.9 | 97.7 | 96.0 | 89.6 | 80.5 | 67.6 | 56.0 | 97.7 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1978 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1977 | 1980 |
| Lowest Mean Max. Temperature (F) | 33.4 | 37.8 | 53.2 | 59.5 | 71.0 | 79.3 | 87.0 | 83.5 | 73.8 | 64.3 | 46.5 | 35.8 | 33.4 |
| Year Lowest Occurred | 1979 | 1978 | 1973 | 1973 | 1980 | 1989 | 1972 | 1974 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 32.6 | 37.4 | 44.4 | 52.9 | 62.0 | 71.9 | 76.8 | 75.1 | 67.2 | 55.9 | 42.8 | 34.3 | 54.4 |
| Highest Mean Temperature (F) | 39.8 | 44.4 | 49.1 | 59.0 | 67.9 | 76.6 | 81.6 | 80.3 | 73.5 | 60.9 | 49.2 | 41.1 | 81.6 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1996 | 1994 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 22.9 | 27.9 | 39.6 | 46.1 | 57.8 | 66.4 | 73.9 | 70.9 | 61.0 | 51.2 | 34.5 | 24.4 | 22.9 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1973 | 1980 | 1989 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 18.5 | 22.6 | 28.7 | 37.0 | 47.2 | 57.3 | 62.4 | 61.2 | 52.7 | 40.3 | 27.9 | 20.6 | 39.7 |
| Highest Mean Min. Temperature (F) | 23.0 | 27.9 | 33.4 | 43.0 | 52.4 | 61.2 | 65.6 | 64.5 | 57.4 | 44.4 | 33.5 | 27.5 | 65.6 |
| Year Highest Occurred | 1986 | 1987 | 1985 | 1981 | 1977 | 1984 | 1980 | 2000 | 1998 | 2000 | 1978 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 12.5 | 16.1 | 22.6 | 32.1 | 43.1 | 53.4 | 59.5 | 57.0 | 48.2 | 36.4 | 22.6 | 13.0 | 12.5 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1983 | 1992 | 1992 | 1992 | 1974 | 1976 | 1993 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.48 | 0.44 | 1.21 | 1.46 | 2.85 | 2.26 | 2.31 | 2.67 | 1.71 | 1.15 | 0.79 | 0.56 | 17.89 |
| Highest Precipitation (in.) | 1.38 | 1.67 | 5.11 | 5.24 | 6.56 | 6.79 | 6.02 | 7.70 | 8.03 | 5.72 | 3.34 | 2.08 | 8.03 |
| Year Highest Occurred | 1990 | 1983 | 2000 | 1997 | 1978 | 2000 | 1973 | 1974 | 1985 | 2000 | 1971 | 1997 | 1985 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1997 | 1991 | 1974 | 1998 | 1987 | 2000 | 1998 | 1995 | 1999 | 1989 | 1998 |
| Heating Degree Days (F) | 1004. | 774. | 640. | 374. | 145. | 20. | 0. | 3. | 57. | 291. | 666. | 953. | 4927. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 52. | 225. | 364. | 315. | 123. | 6. | 0. | 0. | 1093. |