| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.8 | 45.9 | 51.2 | 59.3 | 68.4 | 79.7 | 86.7 | 84.6 | 76.5 | 65.0 | 50.9 | 43.3 | 62.8 |
| Highest Mean Max. Temperature (F) | 53.6 | 52.9 | 60.8 | 69.9 | 77.5 | 86.1 | 91.9 | 90.6 | 81.5 | 74.3 | 64.8 | 53.6 | 91.9 |
| Year Highest Occurred | 2000 | 2000 | 1996 | 1996 | 1996 | 1974 | 1989 | 1996 | 1979 | 1999 | 1999 | 1999 | 1989 |
| Lowest Mean Max. Temperature (F) | 32.2 | 38.7 | 41.4 | 48.4 | 59.4 | 70.8 | 80.2 | 80.5 | 70.2 | 56.3 | 39.7 | 33.4 | 32.2 |
| Year Lowest Occurred | 1979 | 1993 | 1973 | 1975 | 1977 | 1995 | 1992 | 1979 | 1986 | 1972 | 1994 | 1971 | 1979 |
| Mean Temperature (F) | 31.4 | 35.0 | 39.8 | 46.8 | 55.8 | 65.9 | 72.7 | 70.7 | 62.9 | 51.7 | 39.3 | 32.2 | 50.4 |
| Highest Mean Temperature (F) | 39.0 | 41.2 | 47.1 | 54.6 | 62.6 | 70.7 | 77.2 | 74.8 | 66.8 | 59.4 | 49.8 | 39.7 | 77.2 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1984 | 1974 | 1989 | 1996 | 1979 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 23.2 | 30.1 | 32.4 | 37.5 | 48.9 | 58.9 | 69.4 | 66.8 | 57.6 | 45.2 | 27.4 | 24.7 | 23.2 |
| Year Lowest Occurred | 1979 | 1985 | 1973 | 1975 | 1977 | 1998 | 1992 | 1976 | 1986 | 1984 | 1994 | 1971 | 1979 |
| Mean Min. Temperature (F) | 20.9 | 24.0 | 28.3 | 34.3 | 43.1 | 52.0 | 58.7 | 56.8 | 49.2 | 38.3 | 27.6 | 21.0 | 37.9 |
| Highest Mean Min. Temperature (F) | 28.0 | 30.2 | 34.9 | 41.6 | 48.5 | 55.7 | 62.6 | 60.1 | 53.9 | 45.1 | 34.7 | 28.2 | 62.6 |
| Year Highest Occurred | 1986 | 1992 | 1994 | 1992 | 1994 | 2000 | 1989 | 1995 | 1995 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Min. Temperature (F) | 14.2 | 18.8 | 22.0 | 26.2 | 37.1 | 45.5 | 56.2 | 53.2 | 45.0 | 31.5 | 15.1 | 14.8 | 14.2 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1999 | 1998 | 1998 | 1986 | 1976 | 1986 | 1994 | 1994 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.50 | 1.59 | 1.83 | 0.95 | 1.17 | 0.52 | 0.92 | 1.27 | 0.96 | 1.14 | 0.94 | 0.97 | 13.76 |
| Highest Precipitation (in.) | 5.31 | 6.02 | 5.22 | 3.51 | 4.23 | 2.75 | 3.14 | 3.71 | 3.71 | 3.78 | 4.79 | 3.97 | 6.02 |
| Year Highest Occurred | 1993 | 1998 | 1992 | 1978 | 1977 | 1998 | 1996 | 1983 | 1997 | 1974 | 1987 | 1971 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1991 | 1997 | 1992 | 1984 | 1996 | 1995 | 1985 | 1995 | 1999 | 1995 | 1999 | 1989 |
| Heating Degree Days (F) | 1042. | 842. | 784. | 551. | 316. | 88. | 6. | 11. | 117. | 425. | 773. | 1018. | 5973. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 29. | 113. | 245. | 188. | 53. | 11. | 0. | 0. | 644. |