Lower Merion, PA experiences four distinct seasons throughout the year. The summers are typically hot and humid, with temperatures reaching the mid to upper 80s. Winters are mild but can have cold spells, with temperatures usually staying in the 30s during the day and occasionally dropping into the single digits at night. Spring and fall both bring moderate temperatures, often ranging from the 50s to 70s during the day. In addition to temperature changes, Lower Merion also receives an average of 43 inches of precipitation throughout the year.
Lower Merion, Pennsylvania gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Lower Merion averages 18 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 205 sunny days per year in Lower Merion. The US average is 205 sunny days.
Lower Merion gets some kind of precipitation, on average, 114 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 87 degrees
Winter Low: the January low is 24
Rain: averages 48 inches of rain a year
Snow: averages 18 inches of snow a year