| Element | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN |
| Max °F | 18.7 | 25.7 | 37.7 | 54.9 | 69.0 | 77.3 | 81.7 | 78.9 | 69.0 | 56.3 | 37.2 | 23.2 | 52.5 |
| Min °F | -1.2 | 6.4 | 19.1 | 32.2 | 44.1 | 52.9 | 57.9 | 55.5 | 45.7 | 34.3 | 20.4 | 5.5 | 31.1 |
| Mean °F | 8.8 | 16.1 | 28.4 | 43.6 | 56.6 | 65.1 | 69.8 | 67.2 | 57.4 | 45.3 | 28.8 | 14.4 | 41.8 |
| HDD base 65 |
1742 | 1381 | 1135 | 637 | 285 | 79 | 19 | 49 | 253 | 604 | 1077 | 1554 | 8815 |
| CDD base 65 |
0 | 0 | 0 | 2 | 26 | 90 | 172 | 121 | 31 | 1 | 0 | 0 | 443 |
| Month | High Mean°F |
Year | Low Mean°F |
Year | 1-Day Max°F |
Date | 1-Day Min°F |
Date |
| JAN | 22.9 | 1944 | -5.7 | 1912 | 56 | 01-24-1981 | -43 | 01-09-1977 |
| FEB | 29.6 | 1998 | -4.4 | 1936 | 58 | 02-27-1932 | -40 | 02-02-1996 |
| MAR | 43.1 | 1910 | 14.9 | 1899 | 81 | 03-23-1910 | -32 | 03-11-1948 |
| APR | 54.6 | 1915 | 33.4 | 1950 | 96 | 04-21-1980 | -3 | 04-04-1975 |
| MAY | 66.2 | 1934 | 47.2 | 1907 | 105 | 05-31-1934 | 18 | 05-03-1907 |
| JUN | 75.1 | 1933 | 58.5 | 1969 | 102 | 06-28-1931 | 32 | 06-01-1993 |
| JUL | 78.9 | 1936 | 63.1 | 1992 | 107 | 07-22-1934 | 40 | 07-01-1969 |
| AUG | 77.1 | 1900 | 63.2 | 1992 | 105 | 08-15-1936 | 33 | 08-31-1974 |
| SEP | 66.5 | 1931 | 50.3 | 1965 | 106 | 09-10-1931 | 18 | 09-28-1942 |
| OCT | 58.2 | 1900 | 35.8 | 1925 | 90 | 10-02-1953 | 2 | 10-25-1896 |
| NOV | 41.8 | 2001 | 20.9 | 1911 | 75 | 11-08-1999 | -23 | 11-30-1905 |
| DEC | 28.6 | 1913 | -0.4 | 1983 | 63 | 12-06-1939 | -41 | 12-19-1983 |
| Annual | 48.0 | 1931 | 38.0 | 1950 | 107 | 07-22-1934 | -43 | 01-09-1977 |
| Winter | 22.8 | 1998 | 2.7 | 1936 | 63 | 12-06-1939 | -43 | 01-09-1977 |
| Spring | 50.0 | 1977 | 35.8 | 1950 | 105 | 05-31-1934 | -32 | 03-11-1948 |
| Summer | 72.7 | 1900 | 62.7 | 1992 | 107 | 07-22-1934 | 32 | 06-01-1993 |
| Fall | 51.3 | 1963 | 40.3 | 1976 | 106 | 09-10-1931 | -23 | 11-30-1905 |
*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding.
| Month | # Days Max ≥ 90°F |
# Days Max ≤ 32°F |
# Days Min ≤ 32°F |
# Days Min ≤ 0°F |
| JAN | 0.0 | 25.8 | 31.0 | 16.9 |
| FEB | 0.0 | 18.1 | 27.5 | 10.6 |
| MAR | 0.0 | 8.4 | 27.2 | 3.6 |
| APR | 0.0 | 0.7 | 15.9 | 0.0 |
| MAY | 0.5 | 0.0 | 3.4 | 0.0 |
| JUN | 1.8 | 0.0 | 0.0 | 0.0 |
| JUL | 3.9 | 0.0 | 0.0 | 0.0 |
| AUG | 2.4 | 0.0 | 0.0 | 0.0 |
| SEP | 0.5 | 0.0 | 2.5 | 0.0 |
| OCT | 0.0 | 0.2 | 13.9 | 0.0 |
| NOV | 0.0 | 9.9 | 26.7 | 2.0 |
| DEC | 0.0 | 23.5 | 30.7 | 11.1 |
| Annual | 9.2 | 86.7 | 178.7 | 44.2 |
| Winter | 0.0 | 67.4 | 89.2 | 38.6 |
| Spring | 0.5 | 9.1 | 46.5 | 3.6 |
| Summer | 8.1 | 0.0 | 0.0 | 0.0 |
| Fall | 0.6 | 10.2 | 43.0 | 2.0 |
