Merrillville, IN enjoys a humid continental climate that experiences all four seasons. Summers are warm and humid with temperatures regularly reaching into the mid-80s (Fahrenheit), while winters are cold and snowy with occasional temperatures dropping to below freezing. Spring brings plenty of rainfall, while autumn usually brings beautiful foliage and clear skies. The town averages around 42 inches of precipitation each year, making it a great place for outdoor activities throughout every season.
Merrillville, Indiana gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Merrillville averages 33 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 188 sunny days per year in Merrillville. The US average is 205 sunny days.
Merrillville gets some kind of precipitation, on average, 121 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 83 degrees
Winter Low: the January low is 16
Rain: averages 38 inches of rain a year
Snow: averages 33 inches of snow a year