Harman, WV climate
Harman has chilly, snowy winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 80°, a January night drops to 19°, and about 55 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Harman feels like
Winter
Spring
Summer
Fall
Harman 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 | 38° | 19° | 3.7" | 16.8" | 19 | 16 | 21° – 36° |
| February | 41° | 21° | 3.4" | 15.0" | 16 | 11 | 19° – 40° |
| March | 49° | 28° | 4.2" | 9.2" | 16 | 6 | 32° – 49° |
| April | 62° | 36° | 4.2" | 1.6" | 15 | 1 | 43° – 55° |
| May | 70° | 45° | 5.3" | 0 | 16 | 0 | 51° – 65° |
| June | 77° | 53° | 4.8" | 0 | 14 | 0 | 61° – 68° |
| July | 80° | 57° | 5.4" | 0 | 15 | 0 | 64° – 72° |
| August | 79° | 56° | 4.1" | 0 | 13 | 0 | 64° – 72° |
| September | 73° | 49° | 3.7" | 0 | 11 | 0 | 57° – 67° |
| October | 63° | 38° | 3.3" | 0.1" | 11 | 0 | 47° – 55° |
| November | 51° | 29° | 3.1" | 3.3" | 12 | 3 | 34° – 46° |
| December | 42° | 24° | 3.9" | 9.3" | 17 | 10 | 22° – 45° |
| Year | 60° | 38° | 49.1" | 55.3" | 176 | 47 |
“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 Harman
Harman gets 49 inches of rain and melted snow a year. July is the wettest month and November the driest. Rain or snow falls on about 176 days a year. Snow covers the ground about 47 days of the year.
About 138 frost-free days a year
In half of years the last 32° night comes by May 15 and the first one by October 2. That leaves about 138 frost-free days for gardens, shorter than 90% of U.S. towns.
Heating and cooling a home in Harman
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Harman, 97% of that work is heating and 3% 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 Harman 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 Harman averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.5°). The shift is larger than in 57% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Harman’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 22° to 45°. June is the most reliable, staying within 7°.
Common questions about Harman’s climate
What is the coldest month in Harman?
January, with a typical high of 38° and a low of 19°.
What is the hottest month in Harman?
July, with a typical high of 80° and a low of 57°.
How much snow does Harman get?
About 55 inches in a normal winter, most of it in January.
When is the first frost in Harman?
In half of years the first 32° night comes by October 2, and the last spring frost by May 15.
What is the rainiest month in Harman?
July, with 5.4 inches of rain and melted snow. The year totals 49 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Harman itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Parsons 3 Se, WV (12 mi, snow) and Canaan Valley #2, WV (10 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.