| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.3 | 44.7 | 54.9 | 63.3 | 71.7 | 79.2 | 86.3 | 85.8 | 76.6 | 63.1 | 46.5 | 36.5 | 62.2 |
| Highest Mean Max. Temperature (F) | 45.5 | 53.2 | 60.5 | 70.3 | 77.5 | 85.3 | 92.7 | 92.3 | 84.0 | 70.9 | 53.5 | 42.4 | 92.7 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1992 | 1985 | 1971 | 1990 | 1988 | 1990 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 23.2 | 34.5 | 49.1 | 58.2 | 65.7 | 73.6 | 77.8 | 79.8 | 69.1 | 58.3 | 31.7 | 23.5 | 23.2 |
| Year Lowest Occurred | 1979 | 1989 | 1993 | 1984 | 1996 | 1991 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 30.2 | 35.9 | 43.1 | 49.4 | 56.6 | 63.4 | 69.3 | 69.0 | 61.0 | 49.9 | 38.1 | 29.8 | 49.6 |
| Highest Mean Temperature (F) | 37.7 | 42.1 | 47.6 | 53.8 | 61.1 | 69.2 | 74.4 | 74.1 | 66.4 | 56.4 | 43.3 | 36.3 | 74.4 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1993 | 1992 | 1998 | 1977 | 1990 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 16.0 | 25.8 | 39.4 | 45.0 | 51.4 | 58.5 | 63.3 | 63.8 | 56.1 | 45.5 | 24.3 | 18.9 | 16.0 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1984 | 1971 | 1993 | 1975 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 23.1 | 27.1 | 31.2 | 35.4 | 41.5 | 47.6 | 52.3 | 52.1 | 45.4 | 36.7 | 29.6 | 23.1 | 37.1 |
| Highest Mean Min. Temperature (F) | 31.3 | 31.8 | 35.5 | 39.8 | 46.1 | 53.1 | 57.9 | 59.1 | 49.4 | 42.5 | 34.4 | 30.2 | 59.1 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1994 | 1993 | 1992 | 1990 | 1977 | 1994 | 1979 | 1983 | 1980 | 1977 |
| Lowest Mean Min. Temperature (F) | 8.8 | 17.0 | 27.6 | 30.7 | 36.5 | 43.0 | 48.8 | 47.5 | 41.8 | 32.6 | 16.9 | 14.2 | 8.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1974 | 1976 | 1993 | 1995 | 1971 | 1984 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 0.97 | 0.65 | 0.73 | 0.64 | 0.75 | 0.62 | 0.28 | 0.49 | 0.43 | 0.58 | 0.97 | 1.05 | 8.16 |
| Highest Precipitation (in.) | 2.89 | 1.73 | 2.18 | 2.51 | 1.96 | 4.15 | 1.42 | 4.20 | 1.53 | 1.95 | 2.64 | 3.27 | 4.20 |
| Year Highest Occurred | 1995 | 1980 | 1987 | 1995 | 1998 | 1991 | 1992 | 1976 | 1971 | 1973 | 1973 | 1996 | 1976 |
| Lowest Precipitation (in.) | 0.08 | 0.00 | 0.05 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1994 | 1981 | 1979 | 1976 | 2000 | 2000 | 1999 | 1987 | 1990 | 1978 | 1988 |
| Heating Degree Days (F) | 1079. | 814. | 682. | 469. | 273. | 113. | 33. | 38. | 168. | 468. | 809. | 1091. | 6037. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 12. | 65. | 166. | 161. | 48. | 0. | 0. | 0. | 452. |