| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.0 | 43.8 | 54.6 | 63.8 | 73.9 | 85.2 | 92.3 | 90.1 | 80.2 | 66.5 | 49.2 | 38.0 | 64.6 |
| Highest Mean Max. Temperature (F) | 44.5 | 55.4 | 63.6 | 72.1 | 79.1 | 91.9 | 95.1 | 93.4 | 86.5 | 72.7 | 60.2 | 45.4 | 95.1 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1992 | 1994 | 1986 | 2000 | 1985 | 1979 | 1988 | 1999 | 1977 | 2000 |
| Lowest Mean Max. Temperature (F) | 27.1 | 33.4 | 48.8 | 54.4 | 67.8 | 78.5 | 87.7 | 87.1 | 73.3 | 59.1 | 39.8 | 31.0 | 27.1 |
| Year Lowest Occurred | 1984 | 1989 | 1984 | 1975 | 1995 | 1998 | 1993 | 1993 | 1986 | 1982 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 28.7 | 34.1 | 43.1 | 50.7 | 59.6 | 68.9 | 75.9 | 74.1 | 65.0 | 53.3 | 39.6 | 29.9 | 51.9 |
| Highest Mean Temperature (F) | 36.6 | 43.4 | 50.1 | 57.7 | 64.2 | 74.0 | 78.7 | 77.6 | 70.1 | 59.3 | 47.6 | 36.7 | 78.7 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1994 | 1994 | 1989 | 1994 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 19.1 | 24.7 | 36.7 | 43.5 | 54.5 | 63.1 | 71.4 | 71.1 | 60.0 | 47.5 | 31.9 | 22.7 | 19.1 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1977 | 1998 | 1993 | 1975 | 1986 | 1984 | 2000 | 1990 | 1984 |
| Mean Min. Temperature (F) | 20.4 | 24.3 | 31.5 | 37.6 | 45.2 | 52.5 | 59.4 | 58.1 | 49.8 | 40.0 | 29.9 | 21.8 | 39.2 |
| Highest Mean Min. Temperature (F) | 28.9 | 31.4 | 36.5 | 43.2 | 49.3 | 56.7 | 62.3 | 62.6 | 56.0 | 45.8 | 35.0 | 28.0 | 62.6 |
| Year Highest Occurred | 2000 | 2000 | 1986 | 1992 | 1994 | 1994 | 1989 | 2000 | 1990 | 1988 | 1999 | 1995 | 2000 |
| Lowest Mean Min. Temperature (F) | 11.2 | 14.3 | 23.7 | 32.6 | 39.9 | 47.7 | 55.1 | 53.4 | 44.2 | 35.8 | 23.9 | 13.6 | 11.2 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1975 | 1998 | 1993 | 1975 | 1971 | 1984 | 2000 | 1990 | 1984 |
| Mean Precipitation (in.) | 1.87 | 2.10 | 2.35 | 2.28 | 2.25 | 1.09 | 0.91 | 1.03 | 1.52 | 2.16 | 2.21 | 1.78 | 21.55 |
| Highest Precipitation (in.) | 4.21 | 4.77 | 4.28 | 4.70 | 6.10 | 5.04 | 3.15 | 4.77 | 8.08 | 6.76 | 4.62 | 6.10 | 8.08 |
| Year Highest Occurred | 1980 | 1998 | 1978 | 1986 | 1995 | 1998 | 1974 | 1983 | 1982 | 1981 | 1994 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.43 | 0.30 | 0.73 | 0.16 | 0.04 | 0.00 | 0.03 | 0.07 | 0.02 | 0.04 | 0.54 | 0.18 | 0.00 |
| Year Lowest Occurred | 1972 | 1988 | 1972 | 1992 | 1974 | 1994 | 1980 | 1985 | 1974 | 1999 | 1976 | 1989 | 1994 |
| Heating Degree Days (F) | 1126. | 867. | 681. | 435. | 201. | 46. | 1. | 2. | 83. | 369. | 764. | 1088. | 5663. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 33. | 161. | 337. | 283. | 82. | 5. | 0. | 0. | 907. |