Grain Valley, MO has a typical Midwestern climate with hot and humid summers and cold winters. The highest recorded temperature in Grain Valley was 105°F in July of 2012, while the lowest temperature on record was -17°F in January of 1963. The average rainfall each year is 39.15 inches with an average of 16 days per year receiving measurable precipitation. On average, the area receives 43 inches of snow annually with the most snowfall occurring in December and the least amount in July.
Grain Valley, Missouri gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Grain Valley averages 13 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 214 sunny days per year in Grain Valley. The US average is 205 sunny days.
Grain Valley gets some kind of precipitation, on average, 101 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 88 degrees
Winter Low: the January low is 19
Rain: averages 43 inches of rain a year
Snow: averages 13 inches of snow a year