Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0Pennside’s winters are colder and snowier than most of the U.S.
A typical July afternoon reaches 86°, a January night drops to 21°, and about 27 inches of snow falls in a normal winter.
A year in Pennside at a glance
Each month’s typical high and low, and what it brings.
What stands out about Pennside’s climate
Compared with towns across the U.S., with Pennside’s place in Pennsylvania beside it.
What a year in Pennside feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 197 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 29. Frost and day counts come from NOAA’s station at Reading Spaatz Fld, PA, 5 miles from the town’s center, at about the same height.
The 2023 USDA map puts Pennside’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. 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 27 inches of snow a winter
Snow, measured at Reading 3.5 Sw, PA, falls mostly in February. Precipitation (rain plus melted snow) adds up to 47 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 142 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Pennside
83% of the work is heating. Months averaging under 55° run from October 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 Reading Spaatz Fld, PA.
Living with Pennside’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
197 frost-free days in zone 7a. The last frost comes by Apr 14 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 29.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 5.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Pennside from natural hazards, river flooding is the largest share (57%); heat waves, cold waves, winter storms and ice storms together are 18%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Pennside and its neighbors
Exeter Township the hottest July afternoons (87°, 1° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Pennside’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 |
|---|---|---|---|---|
| Pennside, PA | 21° | 86° | 47" | 27" |
| New Martinsville, WV | 22° | 85° | 46" | 27" |
| Elsmere, KY | 23° | 85° | 47" | 23" |
| Delhi Hills, OH | 23° | 86° | 46" | 23" |
| Lawrenceburg, IN | 23° | 86° | 45" | 23" |
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 Pennside averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.2°).
A bigger shift than in 72% 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 Pennside compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Pennside’s place among Pennsylvania’s.
Pennside weather by month
Highs, lows and precipitation from NOAA’s grid at Pennside’s center; snow, wet days and snow on the ground from Reading 3.5 Sw, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 38° | 21° | 3.5" | 7.4" | 11 | 8 | 21° – 38° |
| February | 41° | 23° | 2.6" | 9.5" | 12 | 11 | 21° – 40° |
| March | 50° | 30° | 3.7" | 5.0" | 12 | 5 | 33° – 49° |
| April | 63° | 40° | 3.6" | 0.3" | 13 | 0 | 47° – 56° |
| May | 73° | 50° | 3.8" | 0.0" | 14 | 0 | 56° – 67° |
| June | 81° | 59° | 4.5" | 0.0" | 13 | 0 | 67° – 73° |
| July | 86° | 64° | 4.9" | 0.0" | 12 | 0 | 70° – 79° |
| August | 84° | 62° | 4.5" | 0.0" | 11 | 0 | 68° – 76° |
| September | 77° | 55° | 4.9" | 0.0" | 10 | 0 | 63° – 70° |
| October | 65° | 43° | 4.3" | 0.3" | 12 | 0 | 49° – 61° |
| November | 53° | 34° | 3.3" | 0.8" | 10 | 1 | 38° – 48° |
| December | 43° | 26° | 3.8" | 3.9" | 12 | 5 | 26° – 46° |
| Year | 63° | 42° | 47.4" | 27.2" | 142 | 30 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 26° to 46°. June is the most reliable, staying within 7°.
Where Pennside’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 Pennside’s center.
- Snow: Reading 3.5 Sw, PA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Reading Spaatz Fld, PA, 5 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 Pennside’s climate
What is the weather like in Pennside?
A typical July afternoon reaches 86°, a January night drops to 21°, and about 27 inches of snow falls in a normal winter. Colder January nights than 53% of U.S. towns; hotter July afternoons than 52% of U.S. towns.
How cold does it get in Pennside in winter?
January nights average 21°. About 107 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 21°.
How much snow does Pennside get?
About 27 inches in a normal winter at Reading 3.5 Sw, PA, most of it in February, with snow on the ground about 30 days a year.
How hot does it get in Pennside?
July, with a typical high of 86° and a low of 64°. About 24 days a year reach 90° (Reading Spaatz Fld, PA).
When is the first and last frost in Pennside?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by October 29, about 197 frost-free days, at Reading Spaatz Fld, PA.
What growing zone is Pennside in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.
What is the best time of year to visit Pennside?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Pennside getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 72% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Pennside.
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.