| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.4 | 49.4 | 56.0 | 63.3 | 72.0 | 81.3 | 85.9 | 83.1 | 76.0 | 66.4 | 53.8 | 46.4 | 64.9 |
| Highest Mean Max. Temperature (F) | 54.8 | 58.0 | 64.3 | 70.7 | 79.4 | 89.3 | 91.9 | 88.5 | 82.5 | 72.6 | 64.4 | 55.8 | 91.9 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1981 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 33.7 | 37.9 | 50.6 | 55.9 | 65.3 | 75.7 | 82.9 | 78.3 | 71.5 | 58.2 | 43.8 | 35.4 | 33.7 |
| Year Lowest Occurred | 1979 | 1978 | 1973 | 1983 | 1995 | 1992 | 1990 | 1981 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 30.1 | 34.1 | 40.9 | 48.3 | 57.8 | 67.0 | 71.9 | 69.7 | 61.7 | 50.8 | 38.8 | 31.8 | 50.2 |
| Highest Mean Temperature (F) | 37.6 | 40.1 | 45.6 | 54.4 | 63.6 | 72.0 | 76.4 | 74.0 | 67.3 | 54.0 | 44.8 | 39.0 | 76.4 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1996 | 1990 | 1980 | 1983 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 20.1 | 25.5 | 37.0 | 42.5 | 53.5 | 63.1 | 69.8 | 66.5 | 56.7 | 45.5 | 31.3 | 21.9 | 20.1 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1983 | 1995 | 1982 | 1972 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 14.8 | 18.7 | 25.7 | 33.2 | 43.5 | 52.6 | 57.8 | 56.2 | 47.4 | 35.1 | 23.7 | 17.1 | 35.5 |
| Highest Mean Min. Temperature (F) | 20.4 | 24.7 | 29.8 | 38.1 | 48.2 | 56.0 | 60.9 | 60.2 | 52.1 | 38.4 | 28.5 | 22.1 | 60.9 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1994 | 1996 | 1980 | 1983 | 1998 | 1983 | 1998 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 6.4 | 11.8 | 20.6 | 29.0 | 40.1 | 49.2 | 55.7 | 52.9 | 41.8 | 29.9 | 18.1 | 8.4 | 6.4 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1973 | 1983 | 1983 | 1995 | 1979 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.22 | 0.31 | 0.81 | 1.43 | 2.33 | 2.06 | 2.76 | 2.59 | 1.58 | 0.90 | 0.58 | 0.27 | 15.84 |
| Highest Precipitation (in.) | 0.99 | 1.40 | 3.21 | 5.10 | 5.65 | 5.15 | 7.47 | 7.19 | 4.15 | 3.05 | 1.33 | 0.85 | 7.47 |
| Year Highest Occurred | 1990 | 1990 | 2000 | 1999 | 1999 | 1989 | 1998 | 1997 | 1990 | 2000 | 1978 | 1997 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.07 | 0.37 | 0.37 | 0.33 | 0.65 | 1.18 | 0.12 | 0.03 | 0.00 | 0.04 | 0.00 |
| Year Lowest Occurred | 1998 | 1994 | 1989 | 1991 | 1998 | 1998 | 1993 | 1989 | 1993 | 1988 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 1082. | 867. | 749. | 503. | 242. | 50. | 1. | 16. | 139. | 442. | 788. | 1032. | 5911. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 16. | 109. | 213. | 160. | 39. | 0. | 0. | 0. | 537. |