| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 62.7 | 64.7 | 66.6 | 72.6 | 79.6 | 88.1 | 94.4 | 94.5 | 90.3 | 81.9 | 69.9 | 63.4 | 77.4 |
| Highest Mean Max. Temperature (F) | 70.6 | 74.4 | 77.5 | 80.7 | 88.7 | 95.6 | 100.6 | 99.3 | 97.5 | 89.2 | 79.4 | 71.7 | 100.6 |
| Year Highest Occurred | 1976 | 1991 | 1972 | 1987 | 1997 | 1981 | 1996 | 1996 | 1984 | 1980 | 1995 | 1976 | 1996 |
| Lowest Mean Max. Temperature (F) | 56.5 | 57.1 | 57.2 | 64.2 | 67.3 | 79.3 | 87.5 | 86.1 | 81.5 | 74.7 | 60.1 | 55.6 | 55.6 |
| Year Lowest Occurred | 1995 | 1998 | 1991 | 1983 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 48.2 | 50.3 | 52.1 | 56.0 | 61.3 | 67.5 | 72.6 | 72.4 | 69.3 | 62.2 | 53.3 | 48.0 | 59.4 |
| Highest Mean Temperature (F) | 52.7 | 55.4 | 58.7 | 63.5 | 68.2 | 74.1 | 77.1 | 75.8 | 75.0 | 67.1 | 60.5 | 53.6 | 77.1 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1997 | 1981 | 1996 | 1998 | 1984 | 1991 | 1995 | 1977 | 1996 |
| Lowest Mean Temperature (F) | 44.4 | 45.9 | 46.7 | 49.8 | 55.8 | 63.5 | 67.8 | 67.5 | 62.3 | 58.2 | 46.2 | 43.3 | 43.3 |
| Year Lowest Occurred | 1982 | 1994 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 33.6 | 35.8 | 37.6 | 39.3 | 42.9 | 46.8 | 50.7 | 50.3 | 48.3 | 42.5 | 36.6 | 32.5 | 41.4 |
| Highest Mean Min. Temperature (F) | 40.3 | 41.9 | 43.5 | 46.3 | 47.6 | 52.5 | 53.8 | 53.6 | 52.6 | 47.9 | 41.6 | 38.6 | 53.8 |
| Year Highest Occurred | 1995 | 1996 | 1989 | 1989 | 1997 | 1981 | 1988 | 1997 | 1984 | 1987 | 1995 | 1977 | 1988 |
| Lowest Mean Min. Temperature (F) | 28.3 | 31.4 | 32.7 | 34.9 | 38.4 | 43.9 | 46.6 | 47.1 | 43.0 | 39.2 | 30.5 | 26.0 | 26.0 |
| Year Lowest Occurred | 1982 | 1984 | 1977 | 1975 | 1980 | 1999 | 1983 | 1986 | 1986 | 1981 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 3.32 | 3.45 | 3.47 | 1.09 | 0.48 | 0.08 | 0.04 | 0.09 | 0.32 | 0.90 | 1.72 | 2.39 | 17.35 |
| Highest Precipitation (in.) | 10.16 | 11.86 | 10.56 | 4.09 | 3.23 | 0.59 | 0.66 | 1.35 | 2.72 | 3.29 | 5.95 | 6.54 | 11.86 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1983 | 1998 | 1995 | 1995 | 1976 | 1976 | 1996 | 1972 | 1971 | 1998 |
| Lowest Precipitation (in.) | 0.09 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.01 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1972 | 1992 | 1992 | 1990 | 2000 | 1999 | 1999 | 1995 | 1980 | 1989 | 1972 |
| Heating Degree Days (F) | 522. | 413. | 403. | 286. | 167. | 47. | 8. | 5. | 33. | 136. | 358. | 529. | 2907. |
| Cooling Degree Days (F) | 0. | 0. | 3. | 14. | 51. | 120. | 242. | 235. | 161. | 50. | 6. | 0. | 882. |