Photo: Smallbones · Public domainPrecipitation in Pennsbury Township tops that of 77% of U.S. towns: 48 inches a year
In January the night’s low is typically 23°. A year here swings 63° from midwinter lows to midsummer highs. Garden chairs stay out from April to June and September to October, the months with highs of 64–82°.
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
Compared with towns across the U.S., with Pennsbury Township’s place in Pennsylvania beside it.
What a year in Pennsbury Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
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. Frost and day counts come from NOAA’s station at Wilmington Porter Rsch, DE, 8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Pennsbury Township’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 5°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 12 inches of snow a winter
Snow, measured at Wilmington Porter Rsch, DE, falls mostly in January. Precipitation (rain plus melted snow) adds up to 48 inches a year; 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
Heating and cooling a home in Pennsbury Township
84% of the work is heating. Months averaging under 55° run from November through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Wilmington Porter Rsch, DE.
Living with Pennsbury Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
209 frost-free days in zone 7a. 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.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 6.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Pennsbury Township from natural hazards, river flooding is the largest share (68%); heat waves, cold waves, winter storms and ice storms together are 11%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Pennsbury Township and its neighbors
Every town next door is within a degree of Pennsbury Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Pennsbury Township’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Pennsbury Township, PA | 23° | 87° | 48" | 12" |
| Scottsburg, IN | 23° | 87° | 48" | 12" |
| Paris, KY | 24° | 87° | 49" | 15" |
| Huntington, WV | 25° | 87° | 46" | 10" |
| Mount Vernon, IL | 23° | 87° | 46" | 10" |
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.
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 82% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Pennsbury Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Pennsbury Township’s place among Pennsylvania’s.
Pennsbury Township weather by month
Highs, lows and precipitation from NOAA’s grid at Pennsbury Township’s center; snow, wet days and snow on the ground from Wilmington Porter Rsch, DE. 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" | 0.0" | 10 | 49° – 58° |
| May | 73° | 51° | 3.8" | 0.0" | 11 | 58° – 68° |
| June | 82° | 61° | 4.4" | 0.0" | 10 | 68° – 75° |
| July | 87° | 66° | 4.6" | 0.0" | 9 | 72° – 80° |
| August | 84° | 64° | 4.5" | 0.0" | 9 | 70° – 78° |
| September | 78° | 57° | 4.8" | 0.0" | 9 | 64° – 71° |
| October | 66° | 45° | 4.2" | 0.0" | 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 |
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°.
Where Pennsbury Township’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Pennsbury Township’s center.
- Snow: Wilmington Porter Rsch, DE.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Wilmington Porter Rsch, DE, 8 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Pennsbury Township’s climate
What is the weather like in Pennsbury Township?
A typical July afternoon reaches 87°, a January night drops to 23°, and about 12 inches of snow falls in a normal winter. Milder January nights than 58% of U.S. towns; hotter July afternoons than 59% of U.S. towns.
How cold does it get in Pennsbury Township in winter?
January nights average 23°. About 87 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 24°.
How much snow does Pennsbury Township get?
About 12 inches in a normal winter at Wilmington Porter Rsch, DE, most of it in January.
How hot does it get in Pennsbury Township?
July, with a typical high of 87° and a low of 66°. About 17 days a year reach 90° (Wilmington Porter Rsch, DE).
When is the first and last frost in Pennsbury Township?
In half of years the last spring frost (32°) comes by April 7 and the first fall frost by November 4, about 209 frost-free days, at Wilmington Porter Rsch, DE.
What growing zone is Pennsbury Township in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 5°.
What is the best time of year to visit Pennsbury Township?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Pennsbury Township getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 82% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Pennsbury Township.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.