| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.5 | 52.8 | 60.9 | 68.6 | 77.9 | 87.3 | 90.9 | 88.5 | 81.1 | 71.4 | 57.7 | 48.6 | 69.4 |
| Highest Mean Max. Temperature (F) | 56.2 | 61.3 | 68.2 | 74.5 | 86.7 | 94.5 | 97.8 | 95.6 | 89.0 | 78.9 | 67.5 | 56.6 | 97.8 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1980 | 1980 | 1983 | 1998 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 37.1 | 41.1 | 55.5 | 59.6 | 72.9 | 79.9 | 85.8 | 82.0 | 72.1 | 64.5 | 47.8 | 35.3 | 35.3 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1989 | 1972 | 1974 | 1974 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 33.8 | 38.4 | 45.6 | 53.8 | 63.6 | 73.1 | 77.5 | 75.6 | 67.8 | 56.8 | 43.8 | 35.1 | 55.4 |
| Highest Mean Temperature (F) | 40.6 | 45.2 | 50.5 | 60.7 | 69.9 | 78.8 | 83.5 | 81.4 | 74.8 | 61.9 | 51.2 | 40.8 | 83.5 |
| Year Highest Occurred | 1986 | 2000 | 1974 | 1981 | 1996 | 1980 | 1980 | 2000 | 1998 | 1978 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 25.4 | 28.4 | 41.3 | 46.9 | 59.3 | 67.9 | 73.5 | 70.2 | 60.0 | 50.6 | 35.0 | 24.5 | 24.5 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1973 | 1995 | 1989 | 1972 | 1974 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 20.0 | 23.9 | 30.2 | 39.0 | 49.3 | 58.9 | 64.1 | 62.7 | 54.5 | 42.2 | 29.8 | 21.5 | 41.3 |
| Highest Mean Min. Temperature (F) | 25.0 | 29.4 | 34.1 | 46.9 | 53.9 | 63.1 | 69.2 | 68.1 | 60.5 | 46.3 | 34.8 | 26.5 | 69.2 |
| Year Highest Occurred | 1986 | 1987 | 1981 | 1981 | 1996 | 1980 | 1980 | 2000 | 1998 | 1998 | 1999 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 13.6 | 15.7 | 24.6 | 33.4 | 44.8 | 55.1 | 60.7 | 58.5 | 48.0 | 35.6 | 22.2 | 13.7 | 13.6 |
| Year Lowest Occurred | 1979 | 1978 | 1971 | 1973 | 1983 | 1982 | 1973 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.35 | 0.45 | 0.76 | 1.10 | 1.88 | 2.30 | 2.59 | 3.50 | 1.66 | 1.33 | 0.61 | 0.67 | 17.20 |
| Highest Precipitation (in.) | 0.96 | 1.25 | 4.26 | 4.63 | 4.75 | 4.83 | 7.82 | 9.48 | 7.07 | 5.95 | 2.25 | 9.06 | 9.48 |
| Year Highest Occurred | 1999 | 1978 | 2000 | 1997 | 1978 | 1982 | 1972 | 1981 | 1976 | 1998 | 1972 | 1997 | 1981 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.31 | 0.17 | 0.61 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1997 | 1996 | 1998 | 1998 | 1987 | 1983 | 2000 | 1977 | 1999 | 1979 | 1998 |
| Heating Degree Days (F) | 969. | 746. | 604. | 346. | 118. | 16. | 0. | 5. | 58. | 266. | 638. | 929. | 4695. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 10. | 75. | 259. | 388. | 334. | 142. | 11. | 0. | 0. | 1219. |