| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.1 | 51.6 | 57.3 | 61.7 | 67.8 | 74.6 | 82.2 | 83.3 | 78.0 | 65.7 | 52.8 | 46.5 | 64.1 |
| Highest Mean Max. Temperature (F) | 52.1 | 57.5 | 64.4 | 67.2 | 76.1 | 81.4 | 88.4 | 88.9 | 85.1 | 73.3 | 57.0 | 50.0 | 88.9 |
| Year Highest Occurred | 1984 | 1992 | 1992 | 1987 | 1992 | 1992 | 1985 | 1986 | 1998 | 1987 | 1999 | 1979 | 1986 |
| Lowest Mean Max. Temperature (F) | 39.2 | 44.7 | 51.3 | 55.6 | 62.4 | 67.8 | 74.9 | 77.2 | 70.6 | 61.2 | 45.5 | 40.4 | 39.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1998 | 1980 | 1993 | 1976 | 1978 | 1975 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 40.2 | 43.4 | 47.4 | 50.8 | 56.0 | 61.8 | 67.4 | 68.2 | 63.8 | 54.7 | 45.5 | 40.1 | 53.3 |
| Highest Mean Temperature (F) | 44.0 | 48.2 | 53.0 | 55.2 | 60.7 | 66.5 | 71.6 | 71.4 | 67.6 | 59.0 | 50.1 | 43.7 | 71.6 |
| Year Highest Occurred | 1995 | 1991 | 1992 | 1992 | 1992 | 1992 | 1985 | 1986 | 1998 | 1987 | 1995 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 31.8 | 35.5 | 43.0 | 45.9 | 52.1 | 58.2 | 63.3 | 64.4 | 60.1 | 50.8 | 38.3 | 33.2 | 31.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1993 | 1975 | 1972 | 1971 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 33.2 | 35.1 | 37.4 | 39.8 | 44.2 | 49.0 | 52.6 | 53.1 | 49.6 | 43.7 | 38.2 | 33.6 | 42.5 |
| Highest Mean Min. Temperature (F) | 37.9 | 39.6 | 42.1 | 44.5 | 48.4 | 51.9 | 55.2 | 56.0 | 53.3 | 48.1 | 43.2 | 38.3 | 56.0 |
| Year Highest Occurred | 1995 | 1983 | 1983 | 1992 | 1993 | 1986 | 1995 | 1990 | 1995 | 1979 | 1995 | 1973 | 1990 |
| Lowest Mean Min. Temperature (F) | 24.4 | 26.4 | 33.7 | 35.6 | 41.5 | 45.8 | 50.6 | 49.5 | 46.4 | 40.0 | 30.8 | 25.9 | 24.4 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1977 | 1976 | 1976 | 1980 | 1972 | 1971 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 6.42 | 5.49 | 4.72 | 3.10 | 2.17 | 1.39 | 0.53 | 0.70 | 1.33 | 2.81 | 7.18 | 7.64 | 43.48 |
| Highest Precipitation (in.) | 11.21 | 11.94 | 9.10 | 7.09 | 4.40 | 3.09 | 2.30 | 2.32 | 3.61 | 6.83 | 17.09 | 17.10 | 17.10 |
| Year Highest Occurred | 1996 | 1986 | 1983 | 1993 | 1998 | 1985 | 1987 | 1983 | 1986 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.36 | 1.45 | 1.36 | 0.54 | 0.03 | 0.09 | 0.00 | 0.00 | 0.00 | 0.13 | 1.63 | 1.18 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1978 | 1985 | 1992 | 1976 | 1998 | 2000 | 1993 | 1987 | 1976 | 1976 | 1998 |
| Heating Degree Days (F) | 770. | 607. | 548. | 428. | 282. | 124. | 38. | 23. | 93. | 320. | 585. | 773. | 4591. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 28. | 113. | 123. | 57. | 1. | 0. | 0. | 325. |