Pennsbury Township has chilly winters and warm summers, with plenty of rain
A typical July afternoon reaches 87°, a January night drops to 23°, and about 12 inches of snow falls in a normal winter.
A year in Pennsbury Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Pennsbury Township’s climate
Read from where Pennsbury Township sits among Pennsylvania’s towns. The page puts what stands out first.
What a year in Pennsbury Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Living with Pennsbury Township’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
209 frost-free days. The last frost comes by Apr 7 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 4.
About 12" a winter over 4 days with an inch or more, most in January.
Months averaging under 55° run from November through April. Heating is 84% of the year’s heating-and-cooling load.
About 17 days a year reach 90°, and July afternoons average 87°.
The nicest months are April, May, June, September and October. 6.2 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →12 inches of snow, 48 of rain and melt
September is the wettest month and February the driest. Rain or snow falls on about 113 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 209 frost-free days a year
In half of years the last 32° night comes by April 7 and the first by November 4.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Warmer than it used to be
The last 30 years in Pennsbury Township averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.3°).
A bigger shift than in 88% of U.S. towns.
Change by month
Pennsbury Township and its neighbors
East Marlborough has the coldest January nights next door (23°) and Birmingham the hottest July afternoons (87°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
How Pennsbury Township compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Pennsbury Township weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 40° | 23° | 3.5" | 5.3" | 10 | 24° – 39° |
| February | 43° | 25° | 2.9" | 4.0" | 9 | 24° – 42° |
| March | 52° | 32° | 4.3" | 1.8" | 11 | 36° – 50° |
| April | 64° | 41° | 3.8" | 0 | 10 | 49° – 58° |
| May | 73° | 51° | 3.8" | 0 | 11 | 58° – 68° |
| June | 82° | 61° | 4.4" | 0 | 10 | 68° – 75° |
| July | 87° | 66° | 4.6" | 0 | 9 | 72° – 80° |
| August | 84° | 64° | 4.5" | 0 | 9 | 70° – 78° |
| September | 78° | 57° | 4.8" | 0 | 9 | 64° – 71° |
| October | 66° | 45° | 4.2" | 0 | 8 | 51° – 62° |
| November | 55° | 36° | 3.4" | 0.1" | 8 | 39° – 50° |
| December | 45° | 28° | 4.1" | 0.8" | 10 | 29° – 49° |
| Year | 64° | 44° | 48.3" | 12.0" | 113 |
Heating and cooling a home in Pennsbury Township
84% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 29° to 49°. September is the most reliable, staying within 7°.
Common questions about Pennsbury Township’s climate
What is the coldest month in Pennsbury Township?
January, with a typical high of 40° and a low of 23°.
What is the hottest month in Pennsbury Township?
July, with a typical high of 87° and a low of 66°. About 17 days a year reach 90°.
How much snow does Pennsbury Township get?
About 12 inches in a normal winter, most of it in January.
When is the first frost in Pennsbury Township?
In half of years the first 32° night comes by November 4, and the last spring frost by April 7.
What is the rainiest month in Pennsbury Township?
September, with 4.8 inches of rain and melted snow. The year totals 48 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Pennsbury Township.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Pennsbury Township itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Wilmington Porter Rsch, DE (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.