Greencastle, MO has a temperate climate with four distinct seasons. During the summer months, temperatures reach an average of 84 degrees Fahrenheit during the day and dip into the low 60s at night. In the winter months, temperatures range from highs in the mid-40s to lows dipping down into the teens. The area receives about 40 inches of precipitation each year with most of it falling between April and September. It also experiences plentiful sunshine during all seasons, making Greencastle ideal for outdoor activities.
Greencastle, Missouri gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Greencastle averages 18 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Greencastle. The US average is 205 sunny days.
Greencastle gets some kind of precipitation, on average, 102 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 86 degrees
Winter Low: the January low is 14
Rain: averages 41 inches of rain a year
Snow: averages 18 inches of snow a year