| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.1 | 40.3 | 48.2 | 55.9 | 64.5 | 72.8 | 81.4 | 81.9 | 72.4 | 60.1 | 43.5 | 36.1 | 57.8 |
| Highest Mean Max. Temperature (F) | 45.7 | 48.8 | 54.6 | 63.9 | 71.5 | 81.6 | 89.1 | 87.9 | 80.4 | 68.3 | 49.7 | 43.9 | 89.1 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1992 | 1985 | 1971 | 1998 | 1988 | 1995 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 25.6 | 29.4 | 41.3 | 50.4 | 58.9 | 65.9 | 73.3 | 76.3 | 64.5 | 54.2 | 30.8 | 26.6 | 25.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1974 | 1980 | 1993 | 1975 | 1985 | 1984 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 29.5 | 33.1 | 39.4 | 45.2 | 52.3 | 59.5 | 66.9 | 67.5 | 59.3 | 48.8 | 36.1 | 29.5 | 47.3 |
| Highest Mean Temperature (F) | 38.4 | 40.3 | 44.6 | 50.2 | 57.4 | 66.8 | 74.2 | 73.1 | 65.1 | 57.3 | 41.5 | 36.8 | 74.2 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1993 | 1992 | 1985 | 1986 | 1987 | 1988 | 1995 | 1980 | 1985 |
| Lowest Mean Temperature (F) | 17.7 | 23.3 | 33.5 | 39.8 | 47.6 | 54.4 | 59.7 | 62.0 | 53.6 | 43.9 | 23.8 | 20.6 | 17.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1975 | 1971 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 22.8 | 25.9 | 30.5 | 34.4 | 40.1 | 46.1 | 52.4 | 53.0 | 46.2 | 37.4 | 28.7 | 22.8 | 36.7 |
| Highest Mean Min. Temperature (F) | 31.1 | 31.8 | 35.1 | 39.1 | 44.8 | 52.2 | 59.4 | 59.2 | 52.0 | 46.3 | 34.3 | 29.7 | 59.4 |
| Year Highest Occurred | 1994 | 1992 | 1986 | 1989 | 1987 | 1986 | 1985 | 1986 | 1987 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Min. Temperature (F) | 9.8 | 17.2 | 23.4 | 29.2 | 36.0 | 41.9 | 46.0 | 47.7 | 40.4 | 33.2 | 16.8 | 13.3 | 9.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1993 | 1975 | 1971 | 1998 | 1985 | 1990 | 1979 |
| Mean Precipitation (in.) | 2.08 | 1.62 | 1.27 | 0.81 | 0.91 | 0.69 | 0.35 | 0.38 | 0.55 | 0.80 | 2.10 | 2.25 | 13.81 |
| Highest Precipitation (in.) | 5.50 | 3.71 | 3.65 | 1.91 | 2.11 | 2.91 | 2.20 | 1.58 | 2.08 | 2.30 | 5.48 | 5.53 | 5.53 |
| Year Highest Occurred | 1974 | 1999 | 1983 | 1996 | 1995 | 1991 | 1978 | 1990 | 1971 | 1997 | 1984 | 1987 | 1987 |
| Lowest Precipitation (in.) | 0.16 | 0.05 | 0.06 | 0.00 | 0.14 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.26 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1981 | 1977 | 1973 | 1996 | 1984 | 1996 | 1991 | 1993 | 1976 | 1976 | 1977 |
| Heating Degree Days (F) | 1102. | 893. | 794. | 596. | 396. | 204. | 73. | 61. | 216. | 505. | 867. | 1103. | 6810. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 38. | 133. | 137. | 45. | 2. | 0. | 0. | 358. |