| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.7 | 52.6 | 58.0 | 64.2 | 72.7 | 82.0 | 85.2 | 82.9 | 77.3 | 68.8 | 57.4 | 49.7 | 66.6 |
| Highest Mean Max. Temperature (F) | 57.4 | 60.0 | 67.6 | 72.8 | 81.8 | 89.8 | 91.1 | 88.1 | 84.0 | 74.2 | 67.7 | 58.4 | 91.1 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1989 | 1996 | 1990 | 1980 | 1995 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 39.4 | 45.3 | 51.8 | 55.2 | 67.6 | 76.4 | 80.9 | 79.1 | 72.2 | 59.4 | 46.8 | 44.4 | 39.4 |
| Year Lowest Occurred | 1979 | 1997 | 1973 | 1973 | 1995 | 1983 | 1991 | 1990 | 1974 | 1984 | 1972 | 1982 | 1979 |
| Mean Temperature (F) | 31.2 | 34.9 | 40.7 | 46.8 | 55.8 | 64.4 | 68.8 | 67.0 | 60.5 | 50.4 | 39.6 | 32.1 | 49.4 |
| Highest Mean Temperature (F) | 37.4 | 40.2 | 45.6 | 51.7 | 62.5 | 69.6 | 72.7 | 70.2 | 64.6 | 53.7 | 44.7 | 39.7 | 72.7 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1990 | 1980 | 1995 | 1983 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 24.6 | 30.7 | 37.0 | 39.4 | 52.4 | 60.1 | 65.2 | 63.0 | 56.0 | 44.8 | 32.1 | 25.8 | 24.6 |
| Year Lowest Occurred | 1979 | 1975 | 1998 | 1973 | 1983 | 1983 | 1972 | 1974 | 1974 | 1984 | 1972 | 1974 | 1979 |
| Mean Min. Temperature (F) | 13.7 | 17.2 | 23.4 | 29.3 | 38.8 | 46.7 | 52.3 | 51.0 | 43.6 | 32.0 | 21.8 | 14.4 | 32.0 |
| Highest Mean Min. Temperature (F) | 21.1 | 22.6 | 27.2 | 34.9 | 43.1 | 49.9 | 55.0 | 54.4 | 47.4 | 36.7 | 27.3 | 22.1 | 55.0 |
| Year Highest Occurred | 1993 | 1993 | 1990 | 1986 | 1996 | 1981 | 1998 | 1982 | 1990 | 1981 | 1978 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 8.5 | 9.8 | 18.8 | 23.6 | 34.1 | 42.3 | 49.1 | 45.8 | 39.7 | 28.0 | 15.3 | 6.8 | 6.8 |
| Year Lowest Occurred | 1988 | 1974 | 1998 | 1973 | 1971 | 1973 | 1972 | 1974 | 1974 | 1980 | 1976 | 1974 | 1974 |
| Mean Precipitation (in.) | 0.45 | 0.42 | 0.81 | 1.01 | 2.08 | 1.91 | 3.36 | 3.23 | 2.10 | 1.17 | 0.76 | 0.58 | 17.88 |
| Highest Precipitation (in.) | 1.73 | 1.59 | 3.98 | 3.99 | 5.09 | 4.66 | 8.40 | 6.05 | 5.46 | 4.49 | 4.54 | 1.53 | 8.40 |
| Year Highest Occurred | 1987 | 1997 | 1985 | 1999 | 1994 | 1978 | 1991 | 1993 | 1975 | 2000 | 1978 | 1987 | 1991 |
| Lowest Precipitation (in.) | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1989 | 1996 | 1998 | 1998 | 1987 | 1983 | 1992 | 1995 | 1989 | 1988 | 2000 |
| Heating Degree Days (F) | 1048. | 842. | 755. | 548. | 294. | 82. | 9. | 36. | 156. | 454. | 762. | 1021. | 6007. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 64. | 125. | 95. | 19. | 0. | 0. | 0. | 311. |