| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.4 | 56.2 | 63.9 | 72.2 | 80.0 | 87.8 | 90.4 | 88.1 | 82.1 | 73.3 | 60.2 | 51.7 | 71.4 |
| Highest Mean Max. Temperature (F) | 58.2 | 66.1 | 71.6 | 79.2 | 87.3 | 96.7 | 96.7 | 93.8 | 88.7 | 79.9 | 69.7 | 57.7 | 96.7 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1978 | 1998 | 1990 | 1980 | 1983 | 1998 | 1979 | 1999 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 39.4 | 43.4 | 59.0 | 63.0 | 75.3 | 81.4 | 85.4 | 81.7 | 74.1 | 67.0 | 50.7 | 41.5 | 39.4 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1992 | 1989 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 35.4 | 40.1 | 47.3 | 55.9 | 65.0 | 73.5 | 76.6 | 74.5 | 68.1 | 58.0 | 45.3 | 37.3 | 56.4 |
| Highest Mean Temperature (F) | 40.5 | 47.1 | 52.4 | 60.9 | 70.8 | 79.4 | 81.8 | 78.6 | 73.4 | 61.3 | 51.1 | 42.6 | 81.8 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1978 | 1996 | 1990 | 1980 | 1983 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 26.9 | 31.0 | 43.4 | 49.8 | 61.5 | 69.2 | 73.0 | 70.1 | 61.3 | 51.6 | 38.5 | 28.3 | 26.9 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1976 | 1989 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 20.3 | 24.0 | 30.6 | 39.6 | 50.0 | 59.2 | 62.7 | 60.9 | 54.1 | 42.6 | 30.4 | 22.8 | 41.4 |
| Highest Mean Min. Temperature (F) | 24.5 | 29.4 | 34.0 | 44.3 | 54.5 | 62.4 | 66.9 | 63.5 | 58.1 | 47.5 | 35.2 | 27.5 | 66.9 |
| Year Highest Occurred | 1999 | 1992 | 1985 | 1981 | 1996 | 1980 | 1980 | 1983 | 1998 | 1998 | 1998 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 14.3 | 18.5 | 26.2 | 34.8 | 45.8 | 55.8 | 60.6 | 58.2 | 48.6 | 36.1 | 25.1 | 15.1 | 14.3 |
| Year Lowest Occurred | 1979 | 1978 | 1988 | 1983 | 1983 | 1983 | 1976 | 1979 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.44 | 0.46 | 0.84 | 1.15 | 2.54 | 2.84 | 2.07 | 2.54 | 2.10 | 1.42 | 0.85 | 0.55 | 17.80 |
| Highest Precipitation (in.) | 1.51 | 1.77 | 3.73 | 4.95 | 6.41 | 6.78 | 5.49 | 6.14 | 6.44 | 4.55 | 3.30 | 3.15 | 6.78 |
| Year Highest Occurred | 1983 | 1990 | 1973 | 1997 | 1999 | 1989 | 1973 | 1974 | 1971 | 1974 | 1978 | 1991 | 1989 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.01 | 0.00 | 0.07 | 0.49 | 0.14 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1997 | 1996 | 2000 | 1977 | 1977 | 2000 | 2000 | 1992 | 1999 | 2000 | 1998 |
| Heating Degree Days (F) | 920. | 698. | 551. | 286. | 89. | 8. | 0. | 2. | 48. | 229. | 592. | 860. | 4283. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 90. | 264. | 358. | 296. | 141. | 10. | 0. | 0. | 1172. |