| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.3 | 49.7 | 55.2 | 60.4 | 66.9 | 73.0 | 80.9 | 81.5 | 76.7 | 64.7 | 50.7 | 44.2 | 62.4 |
| Highest Mean Max. Temperature (F) | 49.4 | 56.3 | 63.2 | 66.0 | 75.0 | 79.3 | 89.0 | 87.1 | 84.1 | 73.4 | 55.6 | 48.2 | 89.0 |
| Year Highest Occurred | 1986 | 1992 | 1992 | 1987 | 1992 | 1987 | 1985 | 1986 | 1974 | 1987 | 1995 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 37.0 | 42.4 | 48.2 | 54.7 | 59.5 | 65.8 | 72.3 | 75.4 | 68.7 | 59.6 | 43.8 | 37.9 | 37.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1981 | 1971 | 1993 | 1976 | 1978 | 1975 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 39.2 | 42.3 | 46.1 | 49.9 | 55.3 | 60.4 | 65.7 | 65.7 | 61.9 | 53.0 | 44.0 | 38.7 | 51.9 |
| Highest Mean Temperature (F) | 42.9 | 47.8 | 51.1 | 53.5 | 60.3 | 64.6 | 69.6 | 69.5 | 65.6 | 57.5 | 49.7 | 42.6 | 69.6 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1989 | 1997 | 1986 | 1996 | 1997 | 1974 | 1987 | 1995 | 1974 | 1996 |
| Lowest Mean Temperature (F) | 31.8 | 35.4 | 41.0 | 45.2 | 51.3 | 55.4 | 61.7 | 61.8 | 58.1 | 50.0 | 37.0 | 33.2 | 31.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1993 | 1980 | 1986 | 1971 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 33.1 | 34.8 | 36.9 | 39.4 | 43.7 | 47.8 | 50.4 | 49.8 | 47.0 | 41.2 | 37.2 | 33.2 | 41.2 |
| Highest Mean Min. Temperature (F) | 37.7 | 39.8 | 41.2 | 43.7 | 47.3 | 50.7 | 54.0 | 54.5 | 51.5 | 45.4 | 43.7 | 37.8 | 54.5 |
| Year Highest Occurred | 1995 | 1983 | 1983 | 1992 | 1997 | 1995 | 1995 | 1997 | 1995 | 1975 | 1995 | 1973 | 1997 |
| Lowest Mean Min. Temperature (F) | 26.6 | 28.3 | 31.8 | 35.4 | 41.4 | 45.0 | 47.8 | 44.9 | 43.7 | 38.6 | 29.7 | 25.1 | 25.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1977 | 1971 | 1976 | 1980 | 1983 | 1974 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 7.82 | 6.66 | 5.33 | 3.24 | 2.21 | 1.41 | 0.50 | 0.67 | 1.44 | 3.28 | 7.79 | 8.78 | 49.13 |
| Highest Precipitation (in.) | 13.71 | 17.05 | 11.18 | 7.20 | 5.80 | 3.78 | 2.05 | 1.73 | 4.01 | 7.43 | 21.24 | 21.93 | 21.93 |
| Year Highest Occurred | 1995 | 1999 | 1983 | 1996 | 1998 | 1981 | 1987 | 1978 | 1978 | 1975 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.26 | 1.29 | 1.10 | 0.67 | 0.02 | 0.10 | 0.00 | 0.00 | 0.00 | 0.13 | 1.55 | 1.83 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1992 | 1977 | 1992 | 1987 | 1994 | 1998 | 1975 | 1988 | 1976 | 1976 | 1994 |
| Heating Degree Days (F) | 800. | 637. | 589. | 453. | 304. | 160. | 58. | 61. | 134. | 374. | 633. | 815. | 5018. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 21. | 77. | 82. | 39. | 0. | 0. | 0. | 222. |