| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.2 | 51.0 | 59.0 | 68.5 | 77.0 | 87.8 | 92.7 | 90.4 | 82.2 | 71.7 | 56.6 | 47.4 | 69.1 |
| Highest Mean Max. Temperature (F) | 57.6 | 61.3 | 68.7 | 77.0 | 86.1 | 93.3 | 100.2 | 96.9 | 91.1 | 77.9 | 69.0 | 54.5 | 100.2 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1998 | 1994 | 1980 | 1983 | 1998 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 29.5 | 35.2 | 51.5 | 60.0 | 69.0 | 79.2 | 89.4 | 83.8 | 74.5 | 65.2 | 46.7 | 33.2 | 29.5 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1983 | 1995 | 1989 | 1996 | 1992 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 31.2 | 36.4 | 43.9 | 53.6 | 63.1 | 73.8 | 78.5 | 76.4 | 67.8 | 56.1 | 42.0 | 33.5 | 54.7 |
| Highest Mean Temperature (F) | 41.3 | 43.6 | 51.4 | 60.5 | 69.3 | 79.1 | 84.1 | 81.4 | 74.5 | 58.9 | 49.8 | 38.6 | 84.1 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1998 | 1994 | 1980 | 1983 | 1998 | 1979 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 18.2 | 23.4 | 38.8 | 47.5 | 57.2 | 67.4 | 75.6 | 70.5 | 60.9 | 51.7 | 34.7 | 21.4 | 18.2 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1989 | 1992 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 17.2 | 21.7 | 28.7 | 38.6 | 49.1 | 59.7 | 64.2 | 62.3 | 53.3 | 40.4 | 27.3 | 19.5 | 40.2 |
| Highest Mean Min. Temperature (F) | 25.0 | 30.2 | 36.3 | 44.0 | 54.2 | 64.9 | 68.0 | 66.9 | 57.8 | 45.6 | 32.1 | 25.4 | 68.0 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1987 | 1994 | 1980 | 1995 | 1998 | 2000 | 1998 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 6.8 | 11.6 | 22.0 | 33.8 | 44.6 | 54.5 | 61.1 | 57.3 | 47.4 | 33.5 | 21.1 | 9.6 | 6.8 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1997 | 1983 | 1982 | 1992 | 1992 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.42 | 0.38 | 1.29 | 1.65 | 2.99 | 2.85 | 2.66 | 2.06 | 1.65 | 1.18 | 0.86 | 0.44 | 18.43 |
| Highest Precipitation (in.) | 1.66 | 1.25 | 5.02 | 5.82 | 7.49 | 8.11 | 5.28 | 6.74 | 5.47 | 4.16 | 5.06 | 2.29 | 8.11 |
| Year Highest Occurred | 1990 | 1993 | 2000 | 1976 | 1976 | 1986 | 1990 | 1994 | 1985 | 2000 | 1971 | 1997 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.05 | 0.28 | 0.10 | 0.45 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1997 | 2000 | 1997 | 1996 | 2000 | 1976 | 1982 | 1978 | 2000 | 1975 | 1999 | 2000 | 1997 |
| Heating Degree Days (F) | 1048. | 803. | 656. | 355. | 133. | 16. | 0. | 4. | 58. | 282. | 691. | 980. | 5026. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 72. | 279. | 417. | 355. | 141. | 5. | 0. | 0. | 1280. |