| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.8 | 48.6 | 55.8 | 63.9 | 72.6 | 82.6 | 86.1 | 83.7 | 78.1 | 67.3 | 52.2 | 43.7 | 64.8 |
| Highest Mean Max. Temperature (F) | 54.1 | 56.5 | 63.2 | 71.9 | 81.2 | 88.1 | 90.6 | 88.1 | 84.8 | 73.4 | 63.4 | 54.3 | 90.6 |
| Year Highest Occurred | 1986 | 1981 | 1972 | 1989 | 1996 | 1981 | 1980 | 2000 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 35.6 | 43.6 | 50.0 | 57.0 | 67.9 | 78.9 | 83.0 | 79.9 | 74.0 | 57.7 | 44.1 | 37.3 | 35.6 |
| Year Lowest Occurred | 1988 | 1975 | 1973 | 1973 | 1995 | 1995 | 1990 | 1999 | 1975 | 1984 | 1972 | 1992 | 1988 |
| Mean Temperature (F) | 29.8 | 34.9 | 40.9 | 47.9 | 56.2 | 64.9 | 69.8 | 68.2 | 62.2 | 51.7 | 39.0 | 30.9 | 49.7 |
| Highest Mean Temperature (F) | 39.3 | 41.3 | 45.5 | 54.7 | 62.7 | 68.8 | 72.0 | 72.0 | 67.1 | 55.4 | 45.6 | 39.5 | 72.0 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1996 | 1971 | 2000 | 2000 | 1990 | 1992 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 22.9 | 30.6 | 36.0 | 42.2 | 52.0 | 60.9 | 67.3 | 65.9 | 59.2 | 45.1 | 32.9 | 25.3 | 22.9 |
| Year Lowest Occurred | 1988 | 1975 | 1977 | 1973 | 1995 | 1995 | 1975 | 1976 | 1986 | 1984 | 2000 | 1992 | 1988 |
| Mean Min. Temperature (F) | 16.7 | 21.1 | 26.0 | 31.9 | 39.7 | 47.2 | 53.4 | 52.6 | 46.2 | 36.1 | 25.7 | 18.0 | 34.6 |
| Highest Mean Min. Temperature (F) | 24.6 | 26.8 | 29.3 | 37.5 | 48.2 | 52.4 | 56.5 | 55.8 | 54.0 | 40.2 | 31.2 | 24.6 | 56.5 |
| Year Highest Occurred | 1986 | 1995 | 1994 | 1989 | 1992 | 1971 | 1991 | 2000 | 1990 | 1972 | 1987 | 1980 | 1991 |
| Lowest Mean Min. Temperature (F) | 10.2 | 16.6 | 20.2 | 27.4 | 34.5 | 42.4 | 50.1 | 48.8 | 42.1 | 31.4 | 19.7 | 13.4 | 10.2 |
| Year Lowest Occurred | 1988 | 1974 | 1977 | 1973 | 1977 | 1998 | 1987 | 1975 | 1973 | 1982 | 1979 | 1992 | 1988 |
| Mean Precipitation (in.) | 0.75 | 0.55 | 0.88 | 0.79 | 0.95 | 0.90 | 1.68 | 2.23 | 1.30 | 1.20 | 0.97 | 0.57 | 12.77 |
| Highest Precipitation (in.) | 2.12 | 1.68 | 2.24 | 2.91 | 2.31 | 2.74 | 3.51 | 5.68 | 3.16 | 4.33 | 2.88 | 1.70 | 5.68 |
| Year Highest Occurred | 1974 | 1982 | 1973 | 1999 | 1979 | 1991 | 1996 | 1999 | 1971 | 1972 | 1978 | 1992 | 1999 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.03 | 0.00 | 0.00 | 0.03 | 0.20 | 0.69 | 0.08 | 0.04 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1997 | 1996 | 1998 | 1980 | 1987 | 1978 | 2000 | 1992 | 1999 | 1998 | 1999 |
| Heating Degree Days (F) | 1093. | 844. | 747. | 513. | 288. | 75. | 3. | 15. | 125. | 415. | 782. | 1058. | 5958. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 73. | 151. | 113. | 40. | 2. | 0. | 0. | 393. |