Blue Ridge Summit has chilly, snowy winters and pleasant summers
A typical July afternoon reaches 83°, a January night drops to 21°, and about 33 inches of snow falls in a normal winter.
A year in Blue Ridge Summit at a glance
Each month’s typical high and low, and what it brings.
What stands out about Blue Ridge Summit’s climate
Read from where Blue Ridge Summit sits among Pennsylvania’s towns. The page puts what stands out first.
Living with Blue Ridge Summit’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
197 frost-free days. The last frost comes by Apr 14 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 30.
About 33" a winter over 11 days with an inch or more, most in January. Snow covers the ground about 44 days a year.
Months averaging under 55° run from October through April. Heating is 85% of the year’s heating-and-cooling load.
About 7 days a year reach 90°, and July afternoons average 83°.
The nicest months are May, June, July, August, September and October.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →What a year in Blue Ridge Summit feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
33 inches of snow, 47 of rain and melt
September is the wettest month and February the driest. Rain or snow falls on about 127 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
About 197 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 30.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Blue Ridge Summit and its neighbors
Washington has the coldest January nights next door (22°) and Liberty 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.
Warmer than it used to be
The last 30 years in Blue Ridge Summit averaged 1.6° warmer than the 1900s. The biggest change is in December (+2.8°).
A bigger shift than in 74% of U.S. towns.
Change by month
How Blue Ridge Summit compares
Against every U.S. town on TownTapestry, each counted once, with its place in Pennsylvania.
Blue Ridge Summit 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 | 37° | 21° | 3.5" | 10.6" | 10 | 14 | 20° – 37° |
| February | 40° | 23° | 2.8" | 9.5" | 9 | 14 | 20° – 40° |
| March | 49° | 30° | 4.0" | 6.5" | 11 | 8 | 34° – 49° |
| April | 62° | 41° | 4.0" | 0.6" | 12 | 0 | 47° – 56° |
| May | 71° | 51° | 4.5" | 0 | 13 | 0 | 56° – 66° |
| June | 79° | 59° | 4.4" | 0 | 12 | 0 | 65° – 72° |
| July | 83° | 63° | 4.3" | 0 | 11 | 0 | 68° – 76° |
| August | 81° | 62° | 3.7" | 0 | 11 | 0 | 67° – 75° |
| September | 74° | 56° | 5.0" | 0 | 10 | 0 | 62° – 69° |
| October | 63° | 45° | 4.0" | 0 | 10 | 0 | 50° – 61° |
| November | 51° | 34° | 3.5" | 0.6" | 8 | 1 | 36° – 48° |
| December | 41° | 26° | 3.8" | 5.2" | 10 | 7 | 24° – 43° |
| Year | 61° | 42° | 47.4" | 33.0" | 127 | 44 |
Heating and cooling a home in Blue Ridge Summit
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 24° to 43°. September is the most reliable, staying within 7°.
Common questions about Blue Ridge Summit’s climate
What is the coldest month in Blue Ridge Summit?
January, with a typical high of 37° and a low of 21°.
What is the hottest month in Blue Ridge Summit?
July, with a typical high of 83° and a low of 63°. About 7 days a year reach 90°.
How much snow does Blue Ridge Summit get?
About 33 inches in a normal winter, most of it in January.
When is the first frost in Blue Ridge Summit?
In half of years the first 32° night comes by October 30, and the last spring frost by April 14.
What is the rainiest month in Blue Ridge Summit?
September, with 5.0 inches of rain and melted snow. The year totals 47 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Blue Ridge Summit.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Blue Ridge Summit itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at South Mtn, PA (9 mi, snow) and Catoctin Mtn Park, MD (6 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. Today’s forecast: National Weather Service.