| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.9 | 47.3 | 55.1 | 63.8 | 73.1 | 82.8 | 92.0 | 90.0 | 80.5 | 67.1 | 50.5 | 40.5 | 65.2 |
| Highest Mean Max. Temperature (F) | 47.5 | 58.3 | 61.7 | 72.7 | 83.8 | 89.4 | 96.7 | 96.0 | 86.4 | 76.6 | 61.1 | 46.9 | 96.7 |
| Year Highest Occurred | 1986 | 1995 | 1992 | 1987 | 1992 | 1974 | 1998 | 1998 | 1974 | 1988 | 1995 | 1981 | 1998 |
| Lowest Mean Max. Temperature (F) | 30.8 | 38.8 | 49.1 | 52.9 | 63.5 | 76.8 | 84.1 | 81.0 | 70.0 | 59.0 | 40.9 | 32.9 | 30.8 |
| Year Lowest Occurred | 1984 | 1989 | 1975 | 1975 | 1977 | 1993 | 1993 | 1976 | 1986 | 1984 | 1994 | 1972 | 1984 |
| Mean Temperature (F) | 30.2 | 36.6 | 42.8 | 49.4 | 57.7 | 66.1 | 73.9 | 72.3 | 63.9 | 52.4 | 39.3 | 30.6 | 51.3 |
| Highest Mean Temperature (F) | 37.2 | 44.7 | 48.3 | 56.4 | 66.5 | 71.2 | 77.5 | 76.4 | 68.1 | 60.6 | 47.3 | 38.4 | 77.5 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1990 | 1992 | 1977 | 1994 | 1971 | 1990 | 1988 | 1995 | 1981 | 1994 |
| Lowest Mean Temperature (F) | 20.5 | 27.6 | 37.0 | 40.7 | 51.3 | 60.7 | 66.8 | 65.9 | 56.8 | 45.5 | 29.5 | 21.7 | 20.5 |
| Year Lowest Occurred | 1984 | 1989 | 1985 | 1975 | 1977 | 1980 | 1993 | 1976 | 1986 | 1984 | 1985 | 1990 | 1984 |
| Mean Min. Temperature (F) | 20.5 | 25.9 | 30.5 | 34.9 | 42.3 | 49.3 | 55.7 | 54.6 | 47.2 | 37.7 | 28.1 | 20.7 | 37.3 |
| Highest Mean Min. Temperature (F) | 29.1 | 32.0 | 37.0 | 41.9 | 49.2 | 55.2 | 59.5 | 59.5 | 50.7 | 44.5 | 33.5 | 29.9 | 59.5 |
| Year Highest Occurred | 1978 | 1992 | 1978 | 1990 | 1992 | 1977 | 1996 | 1971 | 1998 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Min. Temperature (F) | 10.1 | 16.4 | 24.1 | 28.4 | 37.9 | 43.5 | 49.4 | 48.8 | 43.1 | 32.0 | 17.3 | 10.2 | 10.1 |
| Year Lowest Occurred | 1984 | 1989 | 1985 | 1975 | 1998 | 1980 | 1993 | 1985 | 1971 | 1984 | 1985 | 1990 | 1984 |
| Mean Precipitation (in.) | 1.18 | 1.04 | 1.05 | 0.77 | 0.83 | 0.77 | 0.34 | 0.41 | 0.51 | 0.57 | 0.94 | 1.06 | 9.47 |
| Highest Precipitation (in.) | 3.07 | 3.28 | 2.64 | 2.10 | 2.77 | 2.19 | 1.18 | 2.72 | 1.59 | 2.00 | 2.30 | 4.13 | 4.13 |
| Year Highest Occurred | 1993 | 2000 | 1983 | 1978 | 1998 | 1996 | 1974 | 1979 | 1998 | 1992 | 1981 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.07 | 0.07 | 0.04 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1995 | 1972 | 1985 | 1992 | 1994 | 2000 | 1996 | 1987 | 1995 | 1975 | 1976 | 1992 |
| Heating Degree Days (F) | 1079. | 795. | 689. | 475. | 262. | 86. | 10. | 13. | 116. | 398. | 771. | 1066. | 5760. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 34. | 117. | 285. | 239. | 82. | 7. | 0. | 0. | 769. |