Average percent of sunshine in Oswego (IL)
The mean percent of sunhours during the day in Oswego (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 Oswego (IL)?
overcast and chance of slight rain
overcast and heavy rain
partly cloudy and chance of slight rain