Upper Macungie, PA has a humid continental climate, characterized by four distinct seasons. Summers are warm and humid, with temperatures reaching up to 90°F during the hottest months of July and August. Winters are typically cold and snowy, with average temperatures ranging from 20-30°F in December and January. Spring is mild and pleasant, while fall brings colorful foliage and cooler temperatures. Precipitation is generally spread throughout the year, although it does tend to be slightly higher in spring than other times of the year.
Upper Macungie, Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Upper Macungie averages 26 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Upper Macungie. The US average is 205 sunny days.
Upper Macungie gets some kind of precipitation, on average, 106 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 85 degrees
Winter Low: the January low is 18
Rain: averages 47 inches of rain a year
Snow: averages 26 inches of snow a year