New Britain, PA climate
New Britain has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 86°, a January night drops to 22°, and about 20 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in New Britain feels like
Winter
Spring
Summer
Fall
New Britain 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 | 39° | 22° | 3.5" | 7.0" | 11 | 6 | 22° – 38° |
| February | 43° | 23° | 2.7" | 5.7" | 10 | 6 | 22° – 40° |
| March | 51° | 30° | 4.0" | 3.5" | 11 | 3 | 34° – 49° |
| April | 63° | 40° | 3.8" | 0 | 11 | 0 | 47° – 56° |
| May | 73° | 50° | 4.0" | 0 | 11 | 0 | 57° – 67° |
| June | 82° | 59° | 4.3" | 0 | 11 | 0 | 67° – 74° |
| July | 86° | 65° | 5.1" | 0 | 10 | 0 | 71° – 79° |
| August | 84° | 62° | 4.6" | 0 | 9 | 0 | 69° – 77° |
| September | 77° | 55° | 4.5" | 0 | 9 | 0 | 64° – 70° |
| October | 66° | 43° | 4.1" | 0.1" | 9 | 0 | 50° – 61° |
| November | 54° | 34° | 3.3" | 0.2" | 9 | 0 | 38° – 49° |
| December | 44° | 27° | 4.2" | 3.4" | 11 | 3 | 29° – 47° |
| Year | 63° | 43° | 47.9" | 19.9" | 120 | 18 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in New Britain
New Britain gets 48 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 120 days a year. Snow covers the ground about 18 days of the year.
About 198 frost-free days a year
In half of years the last 32° night comes by April 13 and the first one by October 30. That leaves about 198 frost-free days for gardens, longer than 71% of U.S. towns.
Heating and cooling a home in New Britain
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In New Britain, 84% of that work is heating and 16% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
New Britain and its neighbors
New Britain borders 2 towns with climate data. January nights across them vary by 0.1°. Doylestown has both the coldest January nights (22°) and the hottest July afternoons (86°). New Britain’s January low is 22° and its July high 86°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How New Britain compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in New Britain averaged 2.1° warmer than the 1900s. The biggest change is in December (+3.8°). The shift is larger than in 96% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at New Britain’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 29° to 47°. June is the most reliable, staying within 6°.
Common questions about New Britain’s climate
What is the coldest month in New Britain?
January, with a typical high of 39° and a low of 22°.
What is the hottest month in New Britain?
July, with a typical high of 86° and a low of 65°. About 20 days a year reach 90°.
How much snow does New Britain get?
About 20 inches in a normal winter, most of it in January.
When is the first frost in New Britain?
In half of years the first 32° night comes by October 30, and the last spring frost by April 13.
What is the rainiest month in New Britain?
July, with 5.1 inches of rain and melted snow. The year totals 48 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for New Britain itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Neshaminy Falls, PA (16 mi, snow) and Doylestown Airport, PA (4 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.