Photo: Jakec · CC BY-SA 4.0Afternoon heat in Marshallton trails that of 83% of U.S. towns
The coldest hours of a January night bottom out at 19° on average. Its yearly precipitation tops that of 67% of U.S. towns. Warming shows here too: 1.3° more than in 1901–2000, led by December. Garden planting can start around April 27; autumn frost returns near October 20.
A year in Marshallton at a glance
Each month’s typical high and low, and what it brings.
What stands out about Marshallton’s climate
Compared with towns across the U.S., with Marshallton’s place in Pennsylvania beside it.
What a year in Marshallton feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 172 frost-free days a year
In half of years the last 32° night comes by April 27 and the first by October 20. Frost and day counts come from NOAA’s station at Bear Gap, PA, 3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Marshallton’s center in zone 6b: 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 34 inches of snow a winter
Snow, measured at Bear Gap, PA, is heaviest from January through February, about 9 inches a month. 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 134 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Marshallton
90% of the work is heating, so the furnace matters far more than the air conditioner. 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 Bear Gap, PA.
Living with Marshallton’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
172 frost-free days in zone 6b. The last frost comes by Apr 27 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 20.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 1.4 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Marshallton from natural hazards, river flooding is the largest share (78%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Marshallton and its neighbors
Every town next door is within a degree of Marshallton in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Marshallton’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 |
|---|---|---|---|---|
| Marshallton, PA | 19° | 82° | 47" | 34" |
| Hopkinton, RI | 20° | 82° | 47" | 35" |
| North Stonington, CT | 20° | 82° | 47" | 38" |
| Peabody, MA | 19° | 82° | 48" | 39" |
| Carmel, NY | 18° | 83° | 48" | 40" |
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 Marshallton averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.9°).
A smaller shift than in 55% 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 Marshallton compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Marshallton’s place among Pennsylvania’s.
Marshallton weather by month
Highs, lows and precipitation from NOAA’s grid at Marshallton’s center; snow, wet days and snow on the ground from Bear Gap, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 19° | 3.4" | 9.3" | 11 | 12 | 17° – 35° |
| February | 37° | 20° | 2.6" | 8.9" | 9 | 14 | 16° – 36° |
| March | 46° | 27° | 3.9" | 7.7" | 11 | 7 | 30° – 47° |
| April | 59° | 37° | 4.0" | 0.8" | 12 | 0 | 43° – 54° |
| May | 69° | 48° | 4.1" | 0.0" | 13 | 0 | 53° – 64° |
| June | 77° | 57° | 4.4" | 0.0" | 12 | 0 | 64° – 70° |
| July | 82° | 61° | 4.4" | 0.0" | 12 | 0 | 67° – 75° |
| August | 80° | 59° | 4.0" | 0.0" | 11 | 0 | 66° – 73° |
| September | 73° | 52° | 4.8" | 0.0" | 10 | 0 | 60° – 67° |
| October | 61° | 41° | 4.1" | 0.4" | 11 | 0 | 46° – 58° |
| November | 49° | 32° | 3.3" | 1.8" | 10 | 1 | 35° – 45° |
| December | 38° | 24° | 3.6" | 4.6" | 11 | 5 | 23° – 40° |
| Year | 59° | 40° | 46.5" | 33.5" | 134 | 40 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 16° to 36°. June is the most reliable, staying within 6°.
Where Marshallton’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 Marshallton’s center.
- Snow: Bear Gap, PA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Bear Gap, PA, 3 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 Marshallton’s climate
What is the weather like in Marshallton?
A typical July afternoon reaches 82°, a January night drops to 19°, and about 34 inches of snow falls in a normal winter. Colder January nights than 66% of U.S. towns; cooler July afternoons than 83% of U.S. towns.
How cold does it get in Marshallton in winter?
January nights average 19°. About 127 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Marshallton get?
About 34 inches in a normal winter at Bear Gap, PA, heaviest from January through February, about 9 inches a month, with snow on the ground about 40 days a year.
How hot does it get in Marshallton?
July, with a typical high of 82° and a low of 61°. About 10 days a year reach 90° (Bear Gap, PA).
When is the first and last frost in Marshallton?
In half of years the last spring frost (32°) comes by April 27 and the first fall frost by October 20, about 172 frost-free days, at Bear Gap, PA.
What growing zone is Marshallton in?
Zone 6b 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 Marshallton?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Marshallton getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 55% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Marshallton.
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.