| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 69.1 | 69.0 | 69.7 | 70.8 | 71.9 | 74.0 | 75.6 | 76.6 | 76.1 | 75.2 | 72.9 | 70.6 | 72.6 |
| Highest Mean Max. Temperature (F) | 72.9 | 72.3 | 72.4 | 73.0 | 73.5 | 77.5 | 77.6 | 78.0 | 78.1 | 77.1 | 75.1 | 73.8 | 78.1 |
| Year Highest Occurred | 1981 | 1981 | 1986 | 1981 | 1981 | 1981 | 1981 | 1985 | 1986 | 1984 | 1986 | 1980 | 1986 |
| Lowest Mean Max. Temperature (F) | 65.5 | 66.7 | 67.4 | 68.8 | 68.5 | 71.5 | 74.1 | 74.9 | 74.5 | 73.5 | 71.2 | 68.5 | 65.5 |
| Year Lowest Occurred | 1993 | 1979 | 1996 | 1972 | 1987 | 1998 | 1975 | 1999 | 1999 | 1999 | 1999 | 1989 | 1993 |
| Mean Temperature (F) | 61.0 | 60.9 | 61.3 | 62.3 | 63.4 | 65.2 | 66.6 | 67.4 | 67.2 | 66.4 | 64.5 | 62.4 | 64.1 |
| Highest Mean Temperature (F) | 63.3 | 62.7 | 63.8 | 63.9 | 65.3 | 66.9 | 67.8 | 68.9 | 69.3 | 67.7 | 66.4 | 65.0 | 69.3 |
| Year Highest Occurred | 1981 | 1981 | 1986 | 1986 | 1992 | 1981 | 1982 | 1986 | 1986 | 1979 | 1986 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 58.6 | 58.9 | 59.4 | 60.9 | 61.3 | 63.5 | 64.9 | 65.7 | 65.5 | 65.1 | 63.0 | 60.7 | 58.6 |
| Year Lowest Occurred | 1993 | 1993 | 1996 | 1976 | 1987 | 1976 | 1975 | 1983 | 1975 | 1999 | 1976 | 1997 | 1993 |
| Mean Min. Temperature (F) | 52.9 | 52.7 | 52.8 | 53.7 | 54.8 | 56.3 | 57.5 | 58.1 | 58.3 | 57.5 | 56.0 | 54.1 | 55.4 |
| Highest Mean Min. Temperature (F) | 55.6 | 54.9 | 55.4 | 55.6 | 57.4 | 58.7 | 59.3 | 60.0 | 61.1 | 59.3 | 58.7 | 56.8 | 61.1 |
| Year Highest Occurred | 1974 | 1980 | 1980 | 1986 | 1992 | 1996 | 1982 | 1982 | 1992 | 1992 | 1990 | 1995 | 1992 |
| Lowest Mean Min. Temperature (F) | 50.8 | 50.5 | 50.3 | 52.4 | 52.7 | 54.2 | 55.4 | 56.0 | 56.3 | 55.4 | 54.0 | 51.9 | 50.3 |
| Year Lowest Occurred | 2000 | 1993 | 1979 | 1985 | 1975 | 1976 | 1998 | 1971 | 1975 | 1981 | 1976 | 1997 | 1979 |
| Mean Precipitation (in.) | 3.54 | 3.00 | 2.54 | 1.57 | 1.07 | 0.77 | 0.75 | 0.80 | 1.08 | 1.45 | 2.30 | 3.27 | 22.14 |
| Highest Precipitation (in.) | 11.88 | 12.61 | 9.37 | 9.75 | 3.87 | 2.80 | 2.80 | 2.95 | 3.35 | 4.75 | 8.35 | 13.01 | 13.01 |
| Year Highest Occurred | 1980 | 1982 | 1989 | 1989 | 1986 | 1985 | 1980 | 1982 | 1983 | 1993 | 1990 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.25 | 0.00 | 0.04 | 0.05 | 0.04 | 0.01 | 0.00 | 0.07 | 0.04 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1983 | 2000 | 1992 | 1994 | 1982 | 1984 | 1998 | 1979 | 1979 | 1996 | 1980 | 1994 | 2000 |
| Heating Degree Days (F) | 127. | 118. | 109. | 86. | 64. | 26. | 7. | 3. | 7. | 8. | 39. | 91. | 685. |
| Cooling Degree Days (F) | 3. | 2. | 2. | 3. | 13. | 31. | 55. | 75. | 72. | 50. | 22. | 9. | 337. |