Newtown Grant has chilly winters and warm summers, with plenty of rain
A typical July afternoon reaches 86°, a January night drops to 23°, and about 20 inches of snow falls in a normal winter.
A year in Newtown Grant at a glance
Each month’s typical high and low, and what it brings.
What stands out about Newtown Grant’s climate
Read from where Newtown Grant sits among Pennsylvania’s towns. The page puts what stands out first.
Warmer than it used to be
The last 30 years in Newtown Grant averaged 2.2° warmer than the 1900s. The biggest change is in December (+3.8°).
A bigger shift than in 98% of U.S. towns.
Change by month
What a year in Newtown Grant feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
20 inches of snow, 49 of rain and melt
July is the wettest month and February the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 185 frost-free days a year
In half of years the last 32° night comes by April 21 and the first by October 25.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Living with Newtown Grant’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
185 frost-free days. The last frost comes by Apr 21 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 25.
About 20" a winter over 5 days with an inch or more, most in January. Snow covers the ground about 18 days a year.
Months averaging under 55° run from November through April. Heating is 85% of the year’s heating-and-cooling load.
About 27 days a year reach 90°, and July afternoons average 86°.
The nicest months are April, May, June, September and October.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →Newtown Grant and its neighbors
Upper Makefield has the coldest January nights next door (22°) and Upper Makefield 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 Newtown Grant compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Newtown Grant 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 40° | 23° | 3.5" | 7.0" | 11 | 6 | 23° – 38° |
| February | 43° | 24° | 2.8" | 5.7" | 10 | 6 | 22° – 40° |
| March | 51° | 31° | 4.1" | 3.5" | 11 | 3 | 36° – 51° |
| April | 63° | 40° | 3.8" | 0 | 11 | 0 | 48° – 56° |
| May | 73° | 50° | 4.1" | 0 | 11 | 0 | 57° – 67° |
| June | 82° | 59° | 4.5" | 0 | 11 | 0 | 67° – 74° |
| July | 86° | 65° | 5.1" | 0 | 10 | 0 | 71° – 79° |
| August | 84° | 63° | 4.5" | 0 | 9 | 0 | 70° – 77° |
| September | 78° | 56° | 4.4" | 0 | 9 | 0 | 64° – 71° |
| October | 66° | 44° | 4.3" | 0.1" | 9 | 0 | 50° – 62° |
| November | 55° | 35° | 3.4" | 0.2" | 9 | 0 | 40° – 50° |
| December | 45° | 28° | 4.3" | 3.4" | 11 | 3 | 28° – 48° |
| Year | 64° | 43° | 48.7" | 19.9" | 120 | 18 |
Heating and cooling a home in Newtown Grant
85% 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 28° to 48°. September is the most reliable, staying within 7°.
Common questions about Newtown Grant’s climate
What is the coldest month in Newtown Grant?
January, with a typical high of 40° and a low of 23°.
What is the hottest month in Newtown Grant?
July, with a typical high of 86° and a low of 65°. About 27 days a year reach 90°.
How much snow does Newtown Grant get?
About 20 inches in a normal winter, most of it in January.
When is the first frost in Newtown Grant?
In half of years the first 32° night comes by October 25, and the last spring frost by April 21.
What is the rainiest month in Newtown Grant?
July, with 5.1 inches of rain and melted snow. The year totals 49 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Newtown Grant.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Newtown Grant itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Neshaminy Falls, PA (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.