East Brandywine, PA climate
East Brandywine has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 86°, a January night drops to 22°, and about 28 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in East Brandywine feels like
Winter
Spring
Summer
Fall
East Brandywine 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° | 3.4" | 8.9" | 12 | 9 | 22° – 38° |
| February | 42° | 23° | 2.8" | 9.5" | 10 | 11 | 22° – 41° |
| March | 51° | 30° | 4.2" | 4.0" | 12 | 6 | 35° – 49° |
| April | 63° | 40° | 3.8" | 1.0" | 12 | 0 | 47° – 57° |
| May | 73° | 50° | 3.8" | 0 | 12 | 0 | 57° – 67° |
| June | 81° | 59° | 4.5" | 0 | 11 | 0 | 67° – 74° |
| July | 86° | 65° | 4.7" | 0 | 11 | 0 | 71° – 79° |
| August | 84° | 63° | 4.3" | 0 | 10 | 0 | 69° – 77° |
| September | 77° | 55° | 4.9" | 0 | 9 | 0 | 63° – 70° |
| October | 65° | 43° | 4.4" | 0.2" | 10 | 0 | 50° – 61° |
| November | 54° | 34° | 3.3" | 0.9" | 9 | 1 | 39° – 49° |
| December | 44° | 27° | 4.1" | 3.9" | 11 | 4 | 27° – 47° |
| Year | 63° | 43° | 48.2" | 28.4" | 129 | 31 |
“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 East Brandywine
East Brandywine gets 48 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 129 days a year. Snow covers the ground about 31 days of the year.
About 205 frost-free days a year
In half of years the last 32° night comes by April 11 and the first one by November 1. That leaves about 205 frost-free days for gardens, longer than 75% of U.S. towns.
Heating and cooling a home in East Brandywine
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In East Brandywine, 86% of that work is heating and 14% 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.
East Brandywine and its neighbors
East Brandywine borders 5 towns with climate data. January nights across them vary by 0.4°. West Brandywine has the coldest January nights (22°) and East Caln the hottest July afternoons (87°). East Brandywine’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 East Brandywine 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 East Brandywine averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.4°). The shift is larger than in 88% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at East Brandywine’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 27° to 47°. September is the most reliable, staying within 7°.
Common questions about East Brandywine’s climate
What is the coldest month in East Brandywine?
January, with a typical high of 39° and a low of 22°.
What is the hottest month in East Brandywine?
July, with a typical high of 86° and a low of 65°. About 16 days a year reach 90°.
How much snow does East Brandywine get?
About 28 inches in a normal winter, most of it in February.
When is the first frost in East Brandywine?
In half of years the first 32° night comes by November 1, and the last spring frost by April 11.
What is the rainiest month in East Brandywine?
September, with 4.9 inches of rain and melted snow. The year totals 48 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for East Brandywine itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Glenmoore, PA (4 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.