Stillman Valley is a city of approximately 1,100 people in Illinois, United States. Located in the Central Time Zone at 42.1°N latitude.
Across a typical year Stillman Valley sees about 37 inches of precipitation and 37 inches of snow, with June the wettest month and January the driest. Temperatures range from January lows near 15°F up to July highs around 84°F, averaging 49°F annually — characteristic of a humid continental climate.
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