| Month | January | February | March | April | May | June | July | August | September | October | November | December | Year |
| Average High | 45.5F(8C) | 49.5F(10C) | 53.2F(12C) | 58.2F(15C) | 64.4F(18C) | 69.6F(21C) | 75.3F(24C) | 75.6F(24C) | 70.2F(21C) | 59.7F(15C) | 50.5F(10C) | 45.5F(8C) | 59.75F(15C) |
| Average Low | 35.9F(2C) | 37.2F(3C) | 39.1F(4C) | 42.1F(6C) | 47.2F(8C) | 51.7F(11C) | 55.3F(13C) | 55.7F(13C) | 51.9F(11C) | 45.7F(8C) | 39.9F(4C) | 35.9F(2C) | 44.8F(7C) |
| Record High | 64F(18C) | 70F(21C) | 78F(26C) | 85F(29C) | 93F(34C) | 96F(36C) | 103F(39C) | 99F(37C) | 98F(37C) | 89F(32C) | 74F(23C) | 64F(18C) | 103F(39C) |
| Record Low | 0F(-18C) | 1F(-17C) | 11F(-12C) | 29F(-2C) | 29F(-2C) | 38F(3C) | 43F(6C) | 44F(7) | 35F(2C) | 28F(-2C) | 6F(-14C) | 6F(-14C) | 0F(-18C) |
| Precipitation inches(millimeters) | 5.13in.(130.3mm) | 4.18in.(106.2mm) | 3.75in.(95.3mm) | 2.59in.(65.8mm) | 1.78in.(45.2mm) | 1.49in.(37.8mm) | 0.79in.(20.1mm) | 1.02in.(25.9mm) | 1.63in.(41.4mm) | 3.19in.(81mm) | 5.90in.(149.9mm) | 5.62in.(142.7mm) | 37.07in.(941.6mm) |
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