| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.7 | 49.7 | 54.9 | 60.3 | 66.3 | 71.8 | 78.4 | 78.6 | 73.3 | 61.3 | 51.0 | 45.4 | 61.4 |
| Highest Mean Max. Temperature (F) | 52.0 | 56.2 | 61.0 | 64.6 | 74.2 | 76.9 | 86.4 | 83.7 | 81.5 | 68.6 | 58.0 | 50.4 | 86.4 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1997 | 1999 | 1985 |
| Lowest Mean Max. Temperature (F) | 38.0 | 41.8 | 50.4 | 55.2 | 59.8 | 66.4 | 70.1 | 73.1 | 67.0 | 55.9 | 42.7 | 38.7 | 38.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1991 | 1991 | 1993 | 1989 | 1978 | 1984 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 39.7 | 42.7 | 46.5 | 50.7 | 55.9 | 60.8 | 65.9 | 66.0 | 61.4 | 52.6 | 44.9 | 39.8 | 52.2 |
| Highest Mean Temperature (F) | 45.0 | 48.5 | 51.0 | 54.2 | 60.8 | 65.0 | 70.3 | 69.4 | 65.6 | 56.5 | 50.9 | 44.0 | 70.3 |
| Year Highest Occurred | 1995 | 1992 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1988 | 1997 | 1979 | 1985 |
| Lowest Mean Temperature (F) | 31.8 | 35.6 | 42.6 | 45.8 | 52.3 | 57.7 | 62.1 | 62.5 | 58.1 | 49.0 | 36.9 | 33.0 | 31.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1991 | 1993 | 1975 | 1996 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 33.7 | 35.6 | 38.0 | 41.0 | 45.5 | 49.8 | 53.3 | 53.3 | 49.5 | 43.9 | 38.7 | 34.1 | 43.0 |
| Highest Mean Min. Temperature (F) | 40.3 | 40.8 | 41.6 | 45.6 | 49.1 | 53.0 | 57.3 | 56.6 | 53.5 | 49.0 | 44.4 | 38.1 | 57.3 |
| Year Highest Occurred | 1995 | 1992 | 1983 | 1992 | 1997 | 1992 | 1998 | 1990 | 1997 | 1988 | 1995 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 25.6 | 29.4 | 32.7 | 36.3 | 42.0 | 47.0 | 50.7 | 49.3 | 46.3 | 40.4 | 31.1 | 25.6 | 25.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1999 | 1976 | 1984 | 1973 | 1999 | 1972 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 8.04 | 6.95 | 6.18 | 5.08 | 4.04 | 2.68 | 1.07 | 1.28 | 2.47 | 4.77 | 8.45 | 8.47 | 59.48 |
| Highest Precipitation (in.) | 12.95 | 15.68 | 13.10 | 8.74 | 7.13 | 6.76 | 4.46 | 4.24 | 5.58 | 14.05 | 15.87 | 18.00 | 18.00 |
| Year Highest Occurred | 1990 | 1996 | 1997 | 1993 | 1984 | 1984 | 1983 | 1975 | 1977 | 1994 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.51 | 1.41 | 2.08 | 2.47 | 0.33 | 0.53 | 0.00 | 0.02 | 0.00 | 0.36 | 1.64 | 2.69 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1999 | 1992 | 1992 | 1984 | 1994 | 1975 | 1988 | 1976 | 1976 | 1984 |
| Heating Degree Days (F) | 784. | 626. | 576. | 431. | 286. | 142. | 51. | 47. | 139. | 386. | 605. | 783. | 4856. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 16. | 77. | 77. | 31. | 0. | 0. | 0. | 205. |