| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.1 | 50.5 | 57.7 | 65.3 | 74.7 | 85.1 | 94.0 | 91.9 | 82.0 | 68.9 | 52.8 | 42.9 | 67.3 |
| Highest Mean Max. Temperature (F) | 49.3 | 59.8 | 64.2 | 74.0 | 84.7 | 90.6 | 98.3 | 97.0 | 87.8 | 79.1 | 62.7 | 48.8 | 98.3 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1992 | 1992 | 2000 | 1994 | 1994 | 1979 | 1988 | 1995 | 1981 | 1994 |
| Lowest Mean Max. Temperature (F) | 31.3 | 40.7 | 50.4 | 54.0 | 65.0 | 78.6 | 88.4 | 82.3 | 73.4 | 60.0 | 44.1 | 33.0 | 31.3 |
| Year Lowest Occurred | 1982 | 1989 | 1973 | 1975 | 1998 | 1995 | 1993 | 1976 | 1986 | 1984 | 1994 | 1978 | 1982 |
| Mean Temperature (F) | 29.0 | 35.9 | 41.9 | 48.7 | 57.7 | 66.6 | 74.0 | 71.5 | 62.2 | 50.2 | 37.0 | 28.7 | 50.3 |
| Highest Mean Temperature (F) | 37.2 | 43.8 | 48.5 | 56.1 | 65.8 | 71.3 | 77.9 | 75.1 | 66.2 | 56.7 | 44.4 | 35.9 | 77.9 |
| Year Highest Occurred | 1995 | 1995 | 1993 | 1992 | 1992 | 2000 | 1996 | 1971 | 1991 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 16.0 | 26.2 | 35.8 | 40.2 | 50.4 | 62.3 | 69.0 | 64.9 | 55.2 | 44.1 | 31.6 | 17.3 | 16.0 |
| Year Lowest Occurred | 1982 | 1989 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1978 | 1982 |
| Mean Min. Temperature (F) | 15.9 | 21.3 | 26.1 | 32.1 | 40.7 | 48.1 | 53.9 | 51.0 | 42.4 | 31.4 | 21.1 | 14.4 | 33.2 |
| Highest Mean Min. Temperature (F) | 28.7 | 29.2 | 34.5 | 38.9 | 46.9 | 53.2 | 58.8 | 55.2 | 51.1 | 35.8 | 27.4 | 26.5 | 58.8 |
| Year Highest Occurred | 1995 | 2000 | 1993 | 1990 | 1997 | 1977 | 1996 | 1971 | 1998 | 1991 | 1998 | 1983 | 1996 |
| Lowest Mean Min. Temperature (F) | 0.7 | 11.7 | 17.5 | 26.3 | 35.5 | 43.6 | 48.5 | 46.2 | 36.7 | 26.2 | 15.4 | 1.5 | 0.7 |
| Year Lowest Occurred | 1982 | 1989 | 1976 | 1975 | 1977 | 1984 | 1983 | 1985 | 1973 | 1971 | 1975 | 1990 | 1982 |
| Mean Precipitation (in.) | 0.54 | 0.48 | 0.52 | 0.48 | 0.54 | 0.49 | 0.15 | 0.30 | 0.41 | 0.36 | 0.40 | 0.51 | 5.18 |
| Highest Precipitation (in.) | 1.63 | 1.80 | 1.66 | 2.18 | 2.68 | 1.83 | 1.51 | 2.67 | 1.46 | 1.68 | 1.42 | 1.87 | 2.68 |
| Year Highest Occurred | 1980 | 1998 | 1978 | 1990 | 1998 | 1993 | 1976 | 1983 | 1998 | 2000 | 1994 | 1983 | 1998 |
| Lowest Precipitation (in.) | 0.02 | 0.05 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 | 0.00 |
| Year Lowest Occurred | 1994 | 1971 | 1976 | 1989 | 1975 | 2000 | 1990 | 1998 | 1995 | 1995 | 1999 | 1976 | 1976 |
| Heating Degree Days (F) | 1117. | 815. | 717. | 492. | 259. | 68. | 5. | 17. | 146. | 464. | 841. | 1126. | 6067. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 33. | 115. | 282. | 218. | 62. | 4. | 0. | 0. | 718. |