| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 49.9 | 55.1 | 62.9 | 70.7 | 79.0 | 87.5 | 89.8 | 87.8 | 81.5 | 72.2 | 59.3 | 50.8 | 70.5 |
| Highest Mean Max. Temperature (F) | 60.6 | 64.0 | 70.6 | 76.7 | 87.3 | 96.7 | 95.8 | 93.7 | 90.7 | 77.6 | 69.4 | 58.1 | 96.7 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1978 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 38.4 | 42.3 | 57.9 | 62.2 | 74.9 | 82.6 | 84.4 | 81.2 | 72.9 | 65.2 | 49.0 | 42.3 | 38.4 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1980 | 1979 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 35.8 | 40.3 | 47.3 | 55.2 | 64.4 | 73.3 | 76.4 | 74.6 | 67.9 | 57.5 | 45.1 | 37.0 | 56.2 |
| Highest Mean Temperature (F) | 42.2 | 47.5 | 53.4 | 59.9 | 70.8 | 79.8 | 80.6 | 78.9 | 74.3 | 60.7 | 51.1 | 42.9 | 80.6 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1978 | 1996 | 1990 | 1980 | 2000 | 1998 | 1973 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 27.5 | 32.6 | 42.5 | 49.0 | 61.0 | 69.4 | 73.0 | 70.2 | 61.7 | 51.0 | 38.3 | 28.9 | 27.5 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1976 | 1989 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 21.7 | 25.4 | 31.7 | 39.7 | 49.8 | 59.1 | 63.0 | 61.4 | 54.3 | 42.7 | 30.9 | 23.1 | 41.9 |
| Highest Mean Min. Temperature (F) | 26.1 | 31.5 | 36.7 | 44.5 | 54.6 | 62.8 | 65.3 | 64.1 | 57.9 | 47.4 | 36.5 | 27.8 | 65.3 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1976 | 1977 | 1990 | 1998 | 2000 | 1998 | 1998 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 16.5 | 18.8 | 25.9 | 34.4 | 44.7 | 55.1 | 60.3 | 59.1 | 50.5 | 36.8 | 26.3 | 15.6 | 15.6 |
| Year Lowest Occurred | 1988 | 1988 | 1988 | 1987 | 1983 | 1983 | 1985 | 1992 | 1974 | 1976 | 1993 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.56 | 0.53 | 0.91 | 1.09 | 2.19 | 2.50 | 2.24 | 2.89 | 2.28 | 1.60 | 0.80 | 0.79 | 18.38 |
| Highest Precipitation (in.) | 2.43 | 2.32 | 2.87 | 6.16 | 5.63 | 5.04 | 4.80 | 6.54 | 4.67 | 6.57 | 2.27 | 3.12 | 6.57 |
| Year Highest Occurred | 1999 | 1986 | 1985 | 1997 | 1992 | 1999 | 1982 | 1974 | 1978 | 1998 | 1986 | 1991 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.22 | 0.00 | 0.02 | 0.01 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1997 | 1996 | 1998 | 1990 | 1987 | 2000 | 2000 | 1992 | 1999 | 1981 | 2000 |
| Heating Degree Days (F) | 905. | 693. | 550. | 306. | 102. | 11. | 0. | 2. | 50. | 243. | 597. | 871. | 4330. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 84. | 260. | 353. | 299. | 138. | 9. | 0. | 0. | 1154. |