Cumberland Valley, PA climate
Cumberland Valley has chilly, snowy winters and warm summers. A typical July afternoon reaches 86°, a January night drops to 21°, and about 40 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Cumberland Valley feels like
Winter
Spring
Summer
Fall
Cumberland Valley 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 | 38° | 21° | 2.7" | 12.1" | 12 | 21° – 38° |
| February | 42° | 23° | 2.4" | 9.7" | 10 | 22° – 41° |
| March | 51° | 29° | 3.4" | 8.3" | 11 | 34° – 50° |
| April | 64° | 38° | 3.6" | 0.7" | 12 | 47° – 56° |
| May | 74° | 48° | 4.3" | 0 | 12 | 56° – 67° |
| June | 82° | 56° | 4.2" | 0 | 11 | 65° – 72° |
| July | 86° | 61° | 3.7" | 0 | 10 | 69° – 77° |
| August | 84° | 59° | 3.4" | 0 | 10 | 67° – 75° |
| September | 77° | 52° | 3.7" | 0 | 10 | 62° – 70° |
| October | 65° | 41° | 3.1" | 0.2" | 10 | 50° – 59° |
| November | 53° | 32° | 2.9" | 0.5" | 11 | 36° – 48° |
| December | 42° | 25° | 3.2" | 8.7" | 12 | 24° – 44° |
| Year | 63° | 40° | 40.5" | 40.2" | 130 |
“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 Cumberland Valley
Cumberland Valley gets 40 inches of rain and melted snow a year. May is the wettest month and February the driest. Rain or snow falls on about 130 days a year.
About 190 frost-free days a year
In half of years the last 32° night comes by April 15 and the first one by October 24. That leaves about 190 frost-free days for gardens, longer than 64% of U.S. towns.
Heating and cooling a home in Cumberland Valley
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Cumberland Valley, 83% of that work is heating and 17% 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.
Cumberland Valley and its neighbors
Cumberland Valley borders 5 towns with climate data. January nights across them vary by 1.5°. Harrison has the coldest January nights (20°) and Londonderry the hottest July afternoons (86°). Cumberland Valley’s January low is 21° and its July high 86°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Cumberland Valley 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 Cumberland Valley averaged 1.2° warmer than the 1900s. The biggest change is in February (+2.2°). The shift is smaller than in 53% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Cumberland Valley’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 24° to 44°. June is the most reliable, staying within 7°.
Common questions about Cumberland Valley’s climate
What is the coldest month in Cumberland Valley?
January, with a typical high of 38° and a low of 21°.
What is the hottest month in Cumberland Valley?
July, with a typical high of 86° and a low of 61°. About 37 days a year reach 90°.
How much snow does Cumberland Valley get?
About 40 inches in a normal winter, most of it in January.
When is the first frost in Cumberland Valley?
In half of years the first 32° night comes by October 24, and the last spring frost by April 15.
What is the rainiest month in Cumberland Valley?
May, with 4.3 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Cumberland Valley itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Buffalo Mills, PA (9 mi, snow) and Cumberland 2, MD (13 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.