| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.5 | 42.6 | 50.7 | 58.6 | 68.6 | 79.1 | 82.6 | 79.8 | 72.9 | 61.6 | 47.4 | 39.1 | 60.0 |
| Highest Mean Max. Temperature (F) | 46.8 | 49.3 | 58.8 | 66.2 | 75.4 | 86.0 | 85.8 | 83.8 | 79.0 | 67.3 | 58.5 | 47.6 | 86.0 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1989 | 1996 | 1980 | 1980 | 1995 | 1998 | 1980 | 1999 | 1981 | 1980 |
| Lowest Mean Max. Temperature (F) | 29.9 | 36.1 | 44.1 | 51.2 | 62.7 | 75.1 | 79.4 | 76.2 | 67.8 | 53.4 | 39.4 | 32.6 | 29.9 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1983 | 1995 | 1991 | 1986 | 1988 | 1986 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 26.5 | 31.7 | 38.9 | 45.9 | 55.0 | 65.3 | 69.4 | 67.0 | 60.4 | 49.1 | 36.1 | 28.0 | 47.8 |
| Highest Mean Temperature (F) | 34.6 | 38.5 | 44.5 | 53.2 | 62.1 | 70.5 | 72.2 | 70.8 | 65.7 | 53.0 | 42.6 | 35.1 | 72.2 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1980 | 1994 | 1995 | 1998 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Temperature (F) | 19.8 | 23.6 | 33.5 | 38.8 | 50.4 | 60.4 | 66.7 | 65.4 | 55.7 | 42.7 | 29.8 | 21.0 | 19.8 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1973 | 1973 | 1983 | 1973 | 1972 | 1973 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 15.5 | 20.8 | 27.0 | 33.2 | 41.3 | 51.4 | 56.1 | 54.2 | 47.8 | 36.6 | 24.8 | 16.8 | 35.5 |
| Highest Mean Min. Temperature (F) | 23.3 | 27.9 | 32.5 | 40.2 | 48.8 | 56.9 | 59.2 | 57.8 | 52.4 | 41.3 | 30.6 | 22.7 | 59.2 |
| Year Highest Occurred | 1999 | 1995 | 1989 | 1989 | 1996 | 1994 | 1994 | 1995 | 1998 | 1992 | 1977 | 1980 | 1994 |
| Lowest Mean Min. Temperature (F) | 6.9 | 11.2 | 21.4 | 25.5 | 34.1 | 43.2 | 52.9 | 50.9 | 41.4 | 31.6 | 19.4 | 9.1 | 6.9 |
| Year Lowest Occurred | 1982 | 1974 | 1971 | 1973 | 1973 | 1973 | 1973 | 1978 | 1973 | 1982 | 1979 | 1990 | 1982 |
| Mean Precipitation (in.) | 0.77 | 0.50 | 0.58 | 0.42 | 0.67 | 0.51 | 1.28 | 1.87 | 1.35 | 1.04 | 0.65 | 0.56 | 10.20 |
| Highest Precipitation (in.) | 3.99 | 1.84 | 1.90 | 2.11 | 2.90 | 2.60 | 2.98 | 4.01 | 2.74 | 4.89 | 2.15 | 2.20 | 4.89 |
| Year Highest Occurred | 1993 | 1973 | 1973 | 1985 | 1973 | 1996 | 1999 | 1993 | 1990 | 1972 | 1986 | 1990 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1999 | 1997 | 1996 | 2000 | 1998 | 1993 | 1985 | 2000 | 1999 | 1997 | 1981 | 1986 |
| Heating Degree Days (F) | 1194. | 933. | 812. | 572. | 321. | 79. | 6. | 29. | 165. | 494. | 867. | 1148. | 6620. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 87. | 141. | 91. | 26. | 0. | 0. | 0. | 355. |