Average percent of sunshine in Crystal Lake (IL)
The mean percent of sunhours during the day in Crystal Lake (Illinois), the United States of America.
- The sun shines on average 69.0% in July making it the most sunny month.
- On average, December has the lowest percentage of sunshine with 37.0%.
Forecast: is it sunny in Crystal Lake (IL)?
partly cloudy and no rain
overcast and rain
overcast and heavy rain