Red Hill, PA climate
Red Hill has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 87°, a January night drops to 21°, and about 26 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Red Hill feels like
Winter
Spring
Summer
Fall
Red Hill 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° | 21° | 3.4" | 7.8" | 11 | 8 | 21° – 37° |
| February | 42° | 23° | 2.8" | 9.4" | 9 | 11 | 21° – 40° |
| March | 51° | 30° | 3.9" | 4.4" | 11 | 4 | 34° – 49° |
| April | 63° | 40° | 3.8" | 1.0" | 12 | 0 | 47° – 56° |
| May | 73° | 50° | 4.0" | 0 | 14 | 0 | 56° – 67° |
| June | 82° | 59° | 4.3" | 0 | 11 | 0 | 67° – 74° |
| July | 87° | 64° | 5.1" | 0 | 12 | 0 | 71° – 79° |
| August | 84° | 62° | 4.5" | 0 | 11 | 0 | 69° – 77° |
| September | 77° | 55° | 4.8" | 0 | 10 | 0 | 63° – 70° |
| October | 66° | 43° | 4.2" | 0 | 11 | 0 | 50° – 61° |
| November | 54° | 34° | 3.3" | 0.3" | 10 | 0 | 38° – 49° |
| December | 44° | 27° | 4.1" | 3.4" | 10 | 4 | 28° – 46° |
| Year | 63° | 42° | 48.1" | 26.3" | 132 | 27 |
“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 Red Hill
Red Hill 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 132 days a year. Snow covers the ground about 27 days of the year.
About 173 frost-free days a year
In half of years the last 32° night comes by April 24 and the first one by October 15. That leaves about 173 frost-free days for gardens, shorter than 57% of U.S. towns.
Heating and cooling a home in Red Hill
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Red Hill, 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.
How Red Hill 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 Red Hill averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.6°). The shift is larger than in 91% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Red Hill’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 21° to 40°. June is the most reliable, staying within 6°.
Common questions about Red Hill’s climate
What is the coldest month in Red Hill?
January, with a typical high of 39° and a low of 21°.
What is the hottest month in Red Hill?
July, with a typical high of 87° and a low of 64°. About 21 days a year reach 90°.
How much snow does Red Hill get?
About 26 inches in a normal winter, most of it in February.
When is the first frost in Red Hill?
In half of years the first 32° night comes by October 15, and the last spring frost by April 24.
What is the rainiest month in Red Hill?
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 Red Hill itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Palm 3 Se, PA (1 mi, snow) and Graterford 1 E, PA (11 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.