| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.5 | 52.3 | 58.0 | 65.3 | 74.2 | 83.1 | 91.9 | 91.7 | 84.9 | 71.5 | 53.6 | 45.7 | 68.2 |
| Highest Mean Max. Temperature (F) | 50.4 | 59.3 | 64.0 | 73.6 | 85.3 | 89.0 | 99.1 | 97.8 | 94.1 | 80.3 | 59.5 | 51.4 | 99.1 |
| Year Highest Occurred | 1998 | 1991 | 1994 | 1987 | 1992 | 1977 | 1972 | 1992 | 1974 | 1988 | 1995 | 1995 | 1972 |
| Lowest Mean Max. Temperature (F) | 42.2 | 47.2 | 52.3 | 58.6 | 64.6 | 76.6 | 84.6 | 84.5 | 75.5 | 63.8 | 47.3 | 41.5 | 41.5 |
| Year Lowest Occurred | 1982 | 1999 | 1975 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 39.3 | 43.0 | 46.4 | 50.9 | 57.7 | 64.8 | 71.3 | 70.5 | 64.7 | 55.1 | 44.8 | 39.0 | 54.0 |
| Highest Mean Temperature (F) | 44.1 | 48.7 | 51.0 | 56.1 | 64.6 | 70.0 | 75.2 | 74.4 | 69.4 | 59.6 | 50.9 | 45.3 | 75.2 |
| Year Highest Occurred | 1995 | 1995 | 1992 | 1990 | 1992 | 1977 | 1972 | 1986 | 1991 | 1988 | 1995 | 1995 | 1972 |
| Lowest Mean Temperature (F) | 35.5 | 37.0 | 42.3 | 45.1 | 52.6 | 60.7 | 67.0 | 67.7 | 60.1 | 51.3 | 38.8 | 33.0 | 33.0 |
| Year Lowest Occurred | 1982 | 1989 | 1971 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 32.0 | 33.6 | 34.8 | 36.5 | 41.1 | 46.5 | 50.6 | 49.3 | 44.4 | 38.6 | 36.0 | 32.3 | 39.6 |
| Highest Mean Min. Temperature (F) | 38.3 | 38.6 | 40.1 | 40.7 | 44.1 | 51.0 | 53.5 | 52.7 | 47.6 | 44.1 | 42.2 | 39.1 | 53.5 |
| Year Highest Occurred | 1995 | 1995 | 1993 | 1992 | 1997 | 1977 | 1996 | 1977 | 1997 | 1979 | 1995 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 27.0 | 25.5 | 30.4 | 31.5 | 38.2 | 44.0 | 47.4 | 45.8 | 41.4 | 33.0 | 27.9 | 24.5 | 24.5 |
| Year Lowest Occurred | 1977 | 1989 | 1976 | 1975 | 1976 | 1976 | 1989 | 1994 | 1987 | 1974 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 10.81 | 9.75 | 8.15 | 4.10 | 2.27 | 0.74 | 0.28 | 0.55 | 1.32 | 3.66 | 10.04 | 10.98 | 62.65 |
| Highest Precipitation (in.) | 25.39 | 22.57 | 19.40 | 13.10 | 9.15 | 2.35 | 1.40 | 3.23 | 6.47 | 10.50 | 30.13 | 35.29 | 35.29 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1990 | 1988 | 1983 | 1983 | 1977 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.53 | 0.13 | 1.68 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.87 | 1.16 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1973 | 1982 | 1999 | 1998 | 1998 | 1999 | 1978 | 1976 | 1976 | 1982 |
| Heating Degree Days (F) | 798. | 618. | 577. | 424. | 240. | 78. | 15. | 9. | 86. | 311. | 606. | 807. | 4569. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 12. | 72. | 208. | 179. | 75. | 4. | 0. | 0. | 550. |