Chester Heights, PA climate
Chester Heights has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 24°, and about 12 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Chester Heights feels like
Winter
Spring
Summer
Fall
Chester Heights 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 41° | 24° | 3.4" | 5.3" | 10 | 24° – 40° |
| February | 43° | 26° | 2.8" | 4.0" | 9 | 24° – 42° |
| March | 52° | 33° | 4.2" | 1.8" | 11 | 37° – 51° |
| April | 64° | 42° | 3.7" | 0 | 10 | 49° – 58° |
| May | 73° | 52° | 3.6" | 0 | 11 | 58° – 68° |
| June | 82° | 62° | 4.3" | 0 | 10 | 68° – 76° |
| July | 87° | 67° | 4.5" | 0 | 9 | 72° – 80° |
| August | 85° | 65° | 4.3" | 0 | 9 | 70° – 79° |
| September | 78° | 58° | 4.8" | 0 | 9 | 65° – 72° |
| October | 66° | 46° | 4.0" | 0 | 8 | 52° – 63° |
| November | 55° | 37° | 3.3" | 0.1" | 8 | 40° – 51° |
| December | 45° | 29° | 4.1" | 0.8" | 10 | 29° – 49° |
| Year | 64° | 45° | 46.8" | 12.0" | 113 |
“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 Chester Heights
Chester Heights gets 47 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 113 days a year.
About 209 frost-free days a year
In half of years the last 32° night comes by April 7 and the first one by November 4. That leaves about 209 frost-free days for gardens, longer than 78% of U.S. towns.
Heating and cooling a home in Chester Heights
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Chester Heights, 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.
Chester Heights and its neighbors
Chester Heights borders 4 towns with climate data. January nights across them vary by 2.0°. Thornbury has the coldest January nights (24°) and Aston the hottest July afternoons (87°). Chester Heights’s January low is 24° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Chester Heights 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 Chester Heights averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.4°). The shift is larger than in 91% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Chester Heights’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 49°. September is the most reliable, staying within 7°.
Common questions about Chester Heights’s climate
What is the coldest month in Chester Heights?
January, with a typical high of 41° and a low of 24°.
What is the hottest month in Chester Heights?
July, with a typical high of 87° and a low of 67°. About 17 days a year reach 90°.
How much snow does Chester Heights get?
About 12 inches in a normal winter, most of it in January.
When is the first frost in Chester Heights?
In half of years the first 32° night comes by November 4, and the last spring frost by April 7.
What is the rainiest month in Chester Heights?
September, with 4.8 inches of rain and melted snow. The year totals 47 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Chester Heights itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Wilmington Porter Rsch, DE (9 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.