| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.6 | 53.1 | 58.2 | 65.0 | 72.8 | 82.0 | 88.7 | 88.8 | 83.1 | 72.6 | 56.0 | 48.2 | 68.1 |
| Highest Mean Max. Temperature (F) | 54.7 | 63.9 | 65.6 | 74.3 | 81.6 | 89.7 | 94.0 | 95.4 | 89.6 | 82.5 | 67.9 | 57.6 | 95.4 |
| Year Highest Occurred | 1991 | 1991 | 1997 | 1987 | 1992 | 1981 | 1984 | 1981 | 1991 | 1988 | 1995 | 1989 | 1981 |
| Lowest Mean Max. Temperature (F) | 40.3 | 43.5 | 47.2 | 54.3 | 59.0 | 75.9 | 83.5 | 78.8 | 73.4 | 64.7 | 45.9 | 40.4 | 40.3 |
| Year Lowest Occurred | 1993 | 1998 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1975 | 1994 | 1971 | 1993 |
| Mean Temperature (F) | 39.1 | 42.1 | 45.5 | 50.0 | 56.6 | 63.7 | 69.0 | 68.6 | 63.8 | 55.4 | 44.3 | 38.7 | 53.1 |
| Highest Mean Temperature (F) | 43.8 | 48.0 | 49.6 | 55.7 | 63.6 | 68.1 | 72.9 | 72.1 | 68.0 | 61.1 | 51.6 | 42.3 | 72.9 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1981 | 1984 | 1981 | 1991 | 1988 | 1995 | 1989 | 1984 |
| Lowest Mean Temperature (F) | 34.1 | 36.2 | 39.4 | 41.2 | 48.6 | 59.5 | 65.5 | 62.3 | 57.5 | 50.5 | 37.5 | 32.3 | 32.3 |
| Year Lowest Occurred | 1972 | 1990 | 1991 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1975 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 29.5 | 31.0 | 32.8 | 35.0 | 40.4 | 45.4 | 49.2 | 48.3 | 44.5 | 38.1 | 32.5 | 29.1 | 38.0 |
| Highest Mean Min. Temperature (F) | 35.1 | 35.0 | 37.3 | 39.7 | 45.6 | 49.5 | 52.5 | 51.3 | 49.0 | 42.4 | 37.0 | 35.0 | 52.5 |
| Year Highest Occurred | 1978 | 1980 | 1993 | 1990 | 1992 | 1977 | 1996 | 1992 | 1998 | 1983 | 1981 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 25.2 | 25.7 | 26.8 | 28.1 | 36.2 | 42.5 | 45.7 | 44.9 | 40.4 | 35.4 | 29.0 | 22.5 | 22.5 |
| Year Lowest Occurred | 1975 | 1990 | 1977 | 1975 | 1977 | 1976 | 1989 | 1979 | 1972 | 1981 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 11.07 | 10.69 | 9.84 | 4.56 | 2.92 | 0.93 | 0.32 | 0.34 | 1.51 | 3.63 | 8.04 | 8.79 | 62.64 |
| Highest Precipitation (in.) | 32.84 | 32.27 | 27.79 | 14.71 | 9.73 | 3.20 | 3.27 | 2.75 | 8.34 | 10.31 | 23.22 | 35.25 | 35.25 |
| Year Highest Occurred | 1995 | 1986 | 1995 | 1982 | 1996 | 1995 | 1974 | 1976 | 1986 | 1989 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.91 | 0.80 | 1.29 | 0.55 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.92 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1971 | 1994 | 1977 | 1974 | 1981 | 2000 | 2000 | 1995 | 1995 | 1986 | 1989 | 1974 |
| Heating Degree Days (F) | 804. | 643. | 606. | 452. | 281. | 95. | 19. | 28. | 104. | 312. | 622. | 816. | 4782. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 19. | 56. | 142. | 137. | 67. | 14. | 0. | 0. | 438. |