| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.6 | 62.1 | 66.9 | 74.1 | 82.3 | 90.5 | 95.8 | 94.8 | 90.4 | 80.5 | 65.3 | 56.2 | 76.2 |
| Highest Mean Max. Temperature (F) | 62.7 | 68.3 | 73.4 | 81.1 | 89.9 | 96.6 | 102.5 | 99.4 | 95.7 | 86.3 | 74.5 | 62.7 | 102.5 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1992 | 1981 | 1988 | 1996 | 1991 | 1991 | 1995 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.1 | 57.4 | 60.0 | 67.0 | 70.3 | 82.9 | 90.3 | 89.4 | 82.7 | 74.8 | 58.5 | 50.6 | 49.1 |
| Year Lowest Occurred | 1972 | 1998 | 1991 | 1983 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 47.2 | 52.1 | 55.9 | 60.8 | 67.1 | 73.5 | 77.3 | 76.3 | 73.0 | 65.4 | 54.1 | 47.0 | 62.5 |
| Highest Mean Temperature (F) | 51.4 | 56.5 | 60.0 | 65.2 | 72.9 | 79.1 | 83.5 | 79.4 | 76.3 | 70.0 | 60.2 | 51.5 | 83.5 |
| Year Highest Occurred | 1995 | 1991 | 1986 | 1987 | 1992 | 1981 | 1988 | 1996 | 1984 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 41.8 | 48.4 | 51.0 | 54.6 | 59.8 | 68.8 | 73.5 | 73.5 | 67.2 | 60.9 | 49.4 | 43.0 | 41.8 |
| Year Lowest Occurred | 1972 | 1990 | 1991 | 1975 | 1998 | 1980 | 1987 | 1976 | 1986 | 1971 | 1994 | 1990 | 1972 |
| Mean Min. Temperature (F) | 38.8 | 42.1 | 44.9 | 47.4 | 51.9 | 56.4 | 58.8 | 57.8 | 55.5 | 50.3 | 42.8 | 37.7 | 48.7 |
| Highest Mean Min. Temperature (F) | 45.9 | 48.1 | 50.1 | 51.0 | 55.8 | 61.7 | 64.4 | 61.3 | 60.3 | 53.6 | 48.1 | 43.9 | 64.4 |
| Year Highest Occurred | 1995 | 1986 | 1986 | 1992 | 1992 | 1981 | 1988 | 1983 | 1997 | 1991 | 1997 | 1983 | 1988 |
| Lowest Mean Min. Temperature (F) | 33.7 | 37.9 | 41.2 | 42.0 | 48.4 | 53.2 | 55.0 | 54.2 | 51.6 | 44.7 | 38.8 | 31.8 | 31.8 |
| Year Lowest Occurred | 1976 | 1990 | 1976 | 1975 | 1977 | 1980 | 2000 | 1994 | 1986 | 1971 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.47 | 5.03 | 3.74 | 1.13 | 0.60 | 0.09 | 0.05 | 0.03 | 0.29 | 1.19 | 3.27 | 3.66 | 24.55 |
| Highest Precipitation (in.) | 16.69 | 15.14 | 10.67 | 5.83 | 3.38 | 0.92 | 1.22 | 0.55 | 1.64 | 3.46 | 8.93 | 12.32 | 16.69 |
| Year Highest Occurred | 1995 | 1998 | 1991 | 1982 | 1998 | 1993 | 1974 | 1976 | 1989 | 1975 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.09 | 0.06 | 0.02 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1991 | 1971 | 1972 | 1973 | 1992 | 1996 | 2000 | 2000 | 1997 | 1995 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 553. | 362. | 287. | 163. | 66. | 5. | 0. | 0. | 6. | 75. | 333. | 560. | 2410. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 36. | 133. | 258. | 380. | 350. | 244. | 88. | 4. | 0. | 1498. |