| Jan | Feb | March | April | May | June | |
| Average High | 36°F | 44°F | 52°F | 61°F | 71°F | 80°F |
| Average Low | 21°F | 27°F | 31°F | 36°F | 43°F | 52°F |
| Mean | 29°F | 36°F | 42°F | 49°F | 58°F | 67°F |
| Average Precipitation | 1.50 in | 1.10 in | 1.30 in | 1.20 in | 1.10 in | 0.80 in |
| Record High |
63°F (1963) |
71°F (1992) |
81°F (1978) |
92°F (1987 |
98°F (1986) |
109°F (1940) |
| Record Low |
-17°F (1950) |
-15°F (1989) |
6°F (1968) |
19°F (1968) |
22°F (1982) |
31°F (1995) |
| July | Aug | Sept | Oct | Nov | Dec | |
| Average High | 90°F | 88°F | 77°F | 64°F | 48°F | 37°F |
| Average Low | 57°F | 56°F | 48°F | 39°F | 31°F | 22°F |
| Mean | 74°F | 73°F | 63°F | 52°F | 40°F | 30°F |
| Average Precipitation | 0.40 in | 0.40 in | 0.80 in | 0.80 in | 1.50 in | 1.40 in |
| Record High |
111°F (1960) |
110°F (1961) |
102°F (1945) |
94°F (1992) |
74°F (1988) |
65°F (1964) |
| Record Low |
35°F (1986) |
34°F (1992) |
23°F (1970) |
11°F (1971) |
-3°F (1985) |
-25°F (1990) |
|
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