| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.9 | 64.1 | 72.0 | 79.3 | 87.1 | 94.9 | 95.8 | 93.8 | 87.7 | 79.4 | 67.9 | 59.2 | 78.3 |
| Highest Mean Max. Temperature (F) | 65.7 | 73.7 | 78.0 | 84.7 | 96.2 | 101.1 | 101.4 | 97.7 | 95.4 | 85.8 | 77.0 | 69.0 | 101.4 |
| Year Highest Occurred | 1999 | 1976 | 1972 | 1986 | 1996 | 1990 | 1998 | 1977 | 1977 | 1979 | 1981 | 1981 | 1998 |
| Lowest Mean Max. Temperature (F) | 49.4 | 56.7 | 65.7 | 72.8 | 80.8 | 89.5 | 90.0 | 88.2 | 78.7 | 73.1 | 59.1 | 52.0 | 49.4 |
| Year Lowest Occurred | 1979 | 1978 | 1981 | 1997 | 1976 | 1986 | 1976 | 1971 | 1974 | 1976 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 42.7 | 48.0 | 55.0 | 62.8 | 71.5 | 79.5 | 81.7 | 80.1 | 73.3 | 63.1 | 51.6 | 43.9 | 62.8 |
| Highest Mean Temperature (F) | 48.5 | 55.6 | 59.6 | 67.5 | 78.2 | 85.2 | 86.2 | 83.5 | 78.9 | 65.7 | 57.4 | 50.0 | 86.2 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1978 | 2000 | 1990 | 1998 | 1977 | 1998 | 1998 | 1999 | 1981 | 1998 |
| Lowest Mean Temperature (F) | 37.2 | 43.2 | 50.8 | 57.4 | 65.6 | 74.9 | 77.6 | 76.1 | 66.5 | 56.0 | 42.8 | 38.0 | 37.2 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1976 | 1979 | 1975 | 1971 | 1974 | 1976 | 1976 | 1989 | 1979 |
| Mean Min. Temperature (F) | 27.5 | 31.9 | 37.9 | 46.2 | 55.9 | 64.1 | 67.6 | 66.3 | 58.9 | 46.8 | 35.3 | 28.5 | 47.2 |
| Highest Mean Min. Temperature (F) | 31.5 | 38.2 | 41.9 | 50.7 | 62.0 | 69.2 | 70.9 | 69.4 | 63.7 | 51.8 | 41.4 | 34.1 | 70.9 |
| Year Highest Occurred | 1993 | 2000 | 1974 | 1978 | 2000 | 1990 | 1998 | 1977 | 1998 | 1983 | 1978 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 24.1 | 27.8 | 33.3 | 41.1 | 50.5 | 59.9 | 64.9 | 61.8 | 53.5 | 38.8 | 25.0 | 22.9 | 22.9 |
| Year Lowest Occurred | 1977 | 1971 | 1996 | 1998 | 1976 | 1979 | 1975 | 1993 | 1975 | 1976 | 1976 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.44 | 0.51 | 0.25 | 0.57 | 1.26 | 1.65 | 1.77 | 2.05 | 2.90 | 1.37 | 0.74 | 0.64 | 14.15 |
| Highest Precipitation (in.) | 1.42 | 2.26 | 1.17 | 3.55 | 4.21 | 5.69 | 7.48 | 7.70 | 12.27 | 5.78 | 4.51 | 3.79 | 12.27 |
| Year Highest Occurred | 1991 | 1997 | 1977 | 1981 | 1992 | 1986 | 1991 | 1984 | 1980 | 1974 | 1978 | 1991 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.05 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1996 | 1998 | 2000 | 1976 | 1989 | 1973 | 2000 | 1988 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 691. | 477. | 315. | 130. | 25. | 0. | 0. | 0. | 14. | 108. | 408. | 655. | 2823. |
| Cooling Degree Days (F) | 0. | 0. | 4. | 62. | 228. | 435. | 517. | 466. | 262. | 49. | 6. | 0. | 2029. |