Nelson, IL has a humid subtropical climate with hot and humid summers and cold winters. The average temperature in the summer is around 70-85 degrees Fahrenheit while in the winter it drops to around 25-40 degrees Fahrenheit. Rainfall is fairly consistent throughout the year, reaching its peak during spring and summer months. Snowfall is usually light but can be heavy in some winters, however Nelson does not experience severe weather events such as tornadoes or hail storms. During any given month of the year, Nelson residents can expect warm days with cool nights making for comfortable living conditions all year round.
Nelson, Illinois gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Nelson averages 29 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 Nelson. The US average is 205 sunny days.
Nelson gets some kind of precipitation, on average, 108 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 84 degrees
Winter Low: the January low is 12
Rain: averages 38 inches of rain a year
Snow: averages 29 inches of snow a year