Visiting local bars in East Peoria is more fun in good weather. These rainfall averages and temperatures can help you determine the best time for bar hopping. The hottest months are usually July and August with an average temp of 72°F, while the coldest months are January and February with an average of 32°F. The snowiest months in East Peoria are January, November, February, and December, with each month seeing an average of 6 inches of snowfall.