The climate in 63120 St. Louis, MO is mild with hot summers and cold winters. The average temperature ranges from 20°F to 90°F, though temperatures can range from -10°F to over 100°F on occasion. Rainfall is moderate with an average of 40 inches per year while snowfall averages around 19 inches yearly. Spring and Fall are pleasant times of the year with temperatures in the mid-60s during the day and mid-40s at night. Humidity levels are usually quite moderate throughout the year, making for comfortable days.
St. Louis (zip 63120), Missouri gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Louis (zip 63120) averages 16 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in St. Louis (zip 63120). The US average is 205 sunny days.
St. Louis (zip 63120) gets some kind of precipitation, on average, 105 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 89 degrees
Winter Low: the January low is 23
Rain: averages 42 inches of rain a year
Snow: averages 16 inches of snow a year