61542 Lewistown, IL enjoys warm summers and cold winters. The average annual temperature is approximately 53°F (12°C), with January being the coldest month of the year with an average low of 22°F (-6°C) and July being the hottest month of the year with an average high of 87°F (31°C). The area experiences moderate to heavy rain throughout the year, including snowfall in winter. On average, the area receives 42 inches of rainfall each year, as well as about 18 inches of snowfall.
Lewistown (zip 61542), Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Lewistown (zip 61542) averages 23 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 194 sunny days per year in Lewistown (zip 61542). The US average is 205 sunny days.
Lewistown (zip 61542) gets some kind of precipitation, on average, 90 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 87 degrees
Winter Low: the January low is 15
Rain: averages 40 inches of rain a year
Snow: averages 23 inches of snow a year