| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.2 | 53.0 | 60.1 | 68.4 | 77.4 | 89.4 | 94.8 | 92.0 | 83.7 | 72.4 | 57.3 | 48.8 | 70.5 |
| Highest Mean Max. Temperature (F) | 59.6 | 62.5 | 68.3 | 76.3 | 84.7 | 96.3 | 99.7 | 98.1 | 90.7 | 76.6 | 69.8 | 57.5 | 99.7 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1981 | 1996 | 1990 | 1980 | 1995 | 1998 | 1992 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 35.6 | 42.6 | 53.2 | 60.1 | 69.9 | 82.4 | 90.5 | 87.5 | 78.2 | 64.1 | 45.5 | 34.0 | 34.0 |
| Year Lowest Occurred | 1979 | 1989 | 1984 | 1973 | 1995 | 1982 | 1992 | 1992 | 1973 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 32.1 | 36.5 | 44.4 | 52.7 | 62.3 | 73.5 | 79.0 | 76.5 | 67.6 | 54.8 | 41.5 | 33.2 | 54.5 |
| Highest Mean Temperature (F) | 40.4 | 43.0 | 50.4 | 59.8 | 67.3 | 78.6 | 83.0 | 81.3 | 73.1 | 57.3 | 49.3 | 40.6 | 83.0 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1996 | 1994 | 1980 | 1995 | 1998 | 1998 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 20.9 | 27.4 | 39.8 | 46.9 | 56.8 | 68.4 | 75.1 | 72.2 | 62.8 | 49.4 | 33.2 | 21.5 | 20.9 |
| Year Lowest Occurred | 1979 | 1989 | 1984 | 1973 | 1995 | 1982 | 1992 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 15.9 | 20.0 | 28.6 | 37.0 | 47.2 | 57.5 | 63.1 | 61.0 | 51.4 | 37.1 | 25.7 | 17.6 | 38.5 |
| Highest Mean Min. Temperature (F) | 22.5 | 26.8 | 33.3 | 43.2 | 51.1 | 61.8 | 66.2 | 64.8 | 56.8 | 40.5 | 31.1 | 23.7 | 66.2 |
| Year Highest Occurred | 1998 | 1987 | 1986 | 1981 | 1977 | 1994 | 1980 | 1983 | 1990 | 1974 | 1990 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 6.1 | 12.2 | 23.5 | 32.0 | 43.6 | 53.7 | 59.6 | 56.9 | 46.4 | 32.4 | 20.4 | 8.9 | 6.1 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1995 | 1998 | 1992 | 1992 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.38 | 0.46 | 1.13 | 1.43 | 2.14 | 1.48 | 2.87 | 1.86 | 0.91 | 1.02 | 0.75 | 0.43 | 14.86 |
| Highest Precipitation (in.) | 1.05 | 1.31 | 4.06 | 4.49 | 6.31 | 5.45 | 5.60 | 4.10 | 1.95 | 3.71 | 2.00 | 1.71 | 6.31 |
| Year Highest Occurred | 1990 | 1993 | 1987 | 1999 | 1995 | 1992 | 1971 | 1997 | 1988 | 1997 | 1991 | 1997 | 1995 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.21 | 0.27 | 0.32 | 0.53 | 0.50 | 0.65 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1996 | 1971 | 1992 | 1986 | 1973 | 1987 | 1982 | 1983 | 1987 | 2000 | 1993 | 1998 |
| Heating Degree Days (F) | 1022. | 797. | 640. | 376. | 146. | 13. | 0. | 2. | 50. | 321. | 706. | 986. | 5059. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 63. | 266. | 432. | 359. | 127. | 2. | 0. | 0. | 1256. |