St. Marys, KS has a temperate climate with four distinct seasons. Summers are warm and humid with temperatures averaging in the low 80s, while winters are cold and dry, with temperatures sometimes dropping below zero. Spring brings pleasant weather and blooming flowers, while autumn features colorful foliage and crisp air. Precipitation is fairly evenly spread throughout the year but varies by month, with May typically being the wettest month and July usually being the driest.
St. Marys, Kansas gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Marys averages 15 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 St. Marys. The US average is 205 sunny days.
St. Marys gets some kind of precipitation, on average, 88 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 90 degrees
Winter Low: the January low is 16
Rain: averages 36 inches of rain a year
Snow: averages 15 inches of snow a year