Warmest month (with highest average high temperature) is July (70.5°F).
Month with lowest average high temperature is December (22.6°F).
Month with highest average low temperature is July (45.9°F).
Coldest month (with lowest average low temperature) is December (7.7°F).
Month with highest relative humidity is December (84.2%).
Month with lowest relative humidity is May (44.1%).
Wettest month (with highest rainfall) is June (2.1").
Driest months (with lowest rainfall) are January, March and December (0.1").
Month with highest number of rainy days is June (14.8 days).
Month with lowest number of rainy days is December (1.5 days).
Month with highest snowfall is January (18.1").
Months with lowest snowfall are June, July, August and September (0").
Month with highest number of snowfall days is January (14.4 days).
Months with lowest number of snowfall days are June, July and August (0 days).
Month with most sunshine is July (Average sunshine: 8.9).
Month with least sunshine is December (Average sunshine: 1.3).