| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.7 | 59.8 | 62.7 | 69.9 | 79.5 | 89.4 | 95.9 | 94.8 | 88.7 | 77.9 | 63.7 | 56.7 | 74.6 |
| Highest Mean Max. Temperature (F) | 63.4 | 67.6 | 71.0 | 78.1 | 87.0 | 95.9 | 100.3 | 98.3 | 94.3 | 84.7 | 71.0 | 65.1 | 100.3 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1977 | 1984 | 1981 | 1984 | 1971 | 1984 | 1978 | 1995 | 1980 | 1984 |
| Lowest Mean Max. Temperature (F) | 52.7 | 54.5 | 55.4 | 61.5 | 67.0 | 79.4 | 90.8 | 88.2 | 79.5 | 72.8 | 56.2 | 50.3 | 50.3 |
| Year Lowest Occurred | 1982 | 1998 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 46.8 | 49.6 | 52.0 | 57.6 | 65.7 | 74.7 | 81.5 | 80.6 | 75.1 | 65.3 | 52.8 | 46.7 | 62.4 |
| Highest Mean Temperature (F) | 53.9 | 56.8 | 58.7 | 64.5 | 73.0 | 80.4 | 85.4 | 83.8 | 80.5 | 71.4 | 58.6 | 53.3 | 85.4 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1977 | 1992 | 1981 | 1984 | 1971 | 1991 | 1991 | 1995 | 1980 | 1984 |
| Lowest Mean Temperature (F) | 43.1 | 45.2 | 46.3 | 50.3 | 55.4 | 67.7 | 76.1 | 74.3 | 67.0 | 60.0 | 46.3 | 41.5 | 41.5 |
| Year Lowest Occurred | 1982 | 1989 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 36.8 | 39.3 | 41.3 | 45.2 | 51.9 | 60.0 | 67.1 | 66.3 | 61.5 | 52.6 | 41.8 | 36.6 | 50.0 |
| Highest Mean Min. Temperature (F) | 44.5 | 46.0 | 46.6 | 51.4 | 59.2 | 65.4 | 70.5 | 69.4 | 67.5 | 60.2 | 46.3 | 42.3 | 70.5 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1987 | 1992 | 1985 | 1984 | 1992 | 1991 | 1991 | 1981 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | 31.2 | 33.9 | 36.1 | 39.1 | 43.8 | 55.5 | 61.4 | 60.3 | 54.5 | 46.9 | 36.3 | 30.4 | 30.4 |
| Year Lowest Occurred | 1989 | 1979 | 1977 | 1975 | 1998 | 1988 | 1987 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.32 | 4.75 | 4.83 | 1.86 | 0.84 | 0.31 | 0.08 | 0.05 | 0.52 | 1.43 | 2.73 | 3.41 | 26.13 |
| Highest Precipitation (in.) | 13.35 | 11.78 | 14.19 | 7.09 | 3.62 | 2.53 | 1.38 | 0.40 | 2.44 | 3.63 | 7.48 | 10.85 | 14.19 |
| Year Highest Occurred | 1995 | 2000 | 1995 | 1978 | 1998 | 1998 | 1992 | 1975 | 1989 | 1992 | 1983 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.19 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1972 | 1972 | 1997 | 1997 | 1994 | 2000 | 2000 | 1999 | 1995 | 1992 | 1989 | 1972 |
| Heating Degree Days (F) | 566. | 434. | 409. | 259. | 123. | 12. | 0. | 0. | 13. | 109. | 375. | 568. | 2868. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 35. | 145. | 304. | 511. | 482. | 316. | 117. | 7. | 0. | 1922. |