| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.1 | 42.6 | 52.2 | 60.8 | 70.5 | 81.5 | 90.0 | 88.4 | 77.8 | 64.7 | 48.4 | 37.8 | 62.6 |
| Highest Mean Max. Temperature (F) | 42.4 | 50.6 | 59.7 | 68.7 | 76.3 | 87.7 | 93.8 | 92.4 | 85.5 | 74.3 | 58.5 | 44.2 | 93.8 |
| Year Highest Occurred | 1999 | 1995 | 1986 | 1987 | 1992 | 1988 | 1988 | 1981 | 1979 | 1988 | 1999 | 1981 | 1988 |
| Lowest Mean Max. Temperature (F) | 27.7 | 33.0 | 47.0 | 52.2 | 63.6 | 73.2 | 81.1 | 84.3 | 70.9 | 57.6 | 40.2 | 29.9 | 27.7 |
| Year Lowest Occurred | 1984 | 1989 | 1976 | 1975 | 1995 | 1998 | 1993 | 1993 | 1986 | 1984 | 2000 | 1990 | 1984 |
| Mean Temperature (F) | 28.1 | 33.2 | 41.7 | 49.5 | 58.9 | 68.7 | 76.6 | 75.0 | 65.0 | 52.7 | 39.2 | 29.8 | 51.5 |
| Highest Mean Temperature (F) | 34.5 | 40.7 | 49.0 | 56.4 | 64.4 | 74.6 | 80.7 | 78.7 | 70.9 | 61.2 | 47.1 | 35.8 | 80.7 |
| Year Highest Occurred | 1999 | 1995 | 1986 | 1992 | 1992 | 1988 | 1989 | 2000 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 20.6 | 23.9 | 34.4 | 42.6 | 53.1 | 61.9 | 68.4 | 71.1 | 60.1 | 46.7 | 32.6 | 20.9 | 20.6 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1975 | 1998 | 1993 | 1993 | 1971 | 1984 | 1994 | 1990 | 1984 |
| Mean Min. Temperature (F) | 20.1 | 23.8 | 31.2 | 38.2 | 47.2 | 55.8 | 63.1 | 61.5 | 52.1 | 40.7 | 29.9 | 21.7 | 40.4 |
| Highest Mean Min. Temperature (F) | 26.8 | 31.0 | 38.2 | 44.8 | 52.4 | 61.4 | 67.8 | 65.5 | 59.0 | 48.1 | 35.7 | 28.2 | 67.8 |
| Year Highest Occurred | 1978 | 2000 | 1986 | 1992 | 1992 | 1988 | 1989 | 2000 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Min. Temperature (F) | 11.8 | 13.0 | 21.8 | 33.0 | 40.6 | 50.5 | 55.7 | 56.9 | 47.3 | 35.8 | 24.5 | 11.9 | 11.8 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1998 | 1993 | 1976 | 1971 | 1984 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 2.32 | 2.13 | 2.44 | 2.45 | 2.90 | 1.47 | 0.94 | 1.02 | 1.75 | 2.27 | 2.01 | 1.97 | 23.67 |
| Highest Precipitation (in.) | 4.44 | 4.96 | 5.66 | 6.40 | 6.49 | 4.77 | 2.73 | 3.87 | 7.37 | 5.82 | 5.21 | 8.90 | 8.90 |
| Year Highest Occurred | 1995 | 1976 | 1975 | 1986 | 1977 | 1998 | 1993 | 1983 | 1982 | 1981 | 1988 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.57 | 0.18 | 0.74 | 0.15 | 0.10 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1972 | 1987 | 1972 | 1994 | 1994 | 1996 | 1974 | 1978 | 1976 | 1986 | 1994 |
| Heating Degree Days (F) | 1144. | 891. | 722. | 471. | 224. | 57. | 3. | 2. | 96. | 390. | 776. | 1092. | 5868. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 33. | 166. | 361. | 312. | 94. | 8. | 0. | 0. | 980. |