Gassaway, West Virginia climate: Normal weather by month, frost dates and records
Gassaway's normal year runs from 22°F January nights to 85°F July afternoons, with 51.0 inches of precipitation and 17 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.2°C, January lows of −6°C, July highs of 29°C, 1,295 mm of precipitation a year.
- NOAA stationGassaway
- Station IDUSC00463361
- Location38.66°N 80.77°W
- Elevation848 ft (259 m)
- Population725
On October 23, the normal high in Gassaway is 66°F and the normal low 40°F, and the chance of measurable rain or snow is 37%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Gassaway.
- Jan 42° 22°
- Feb 46° 24°
- Mar 54° 30°
- Apr 67° 40°
- May 75° 51°
- Jun 82° 60°
- Jul 85° 64°
- Aug 84° 63°
- Sep 79° 56°
- Oct 68° 43°
- Nov 57° 32°
- Dec 46° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Gassaway each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 22°F. The most precipitation falls in July (6.44 in), the least in February (3.25 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 42°F | 22°F | 31.7°F | 3.55 | 5.4 | 16 | <1 | 25 | 9 h 40 min |
| February | 46°F | 24°F | 34.8°F | 3.25 | 4.1 | 14 | <1 | 23 | 10 h 40 min |
| March | 54°F | 30°F | 42.2°F | 4.23 | 3.3 | 14 | <1 | 19 | 11 h 50 min |
| April | 67°F | 40°F | 53.6°F | 4.10 | 0.2 | 14 | <1 | 6 | 13 h 10 min |
| May | 75°F | 51°F | 62.9°F | 4.99 | 0.0 | 14 | 1 | <1 | 14 h 10 min |
| June | 82°F | 60°F | 70.6°F | 5.08 | 0.0 | 14 | 2 | <1 | 14 h 50 min |
| July | 85°F | 64°F | 74.5°F | 6.44 | 0.0 | 13 | 6 | <1 | 14 h 40 min |
| August | 84°F | 63°F | 73.4°F | 4.72 | 0.0 | 11 | 4 | <1 | 13 h 40 min |
| September | 79°F | 56°F | 67.5°F | 3.47 | 0.0 | 10 | 2 | <1 | 12 h 30 min |
| October | 68°F | 43°F | 55.6°F | 3.73 | 0.0 | 11 | <1 | 4 | 11 h 20 min |
| November | 57°F | 32°F | 44.4°F | 3.40 | 0.8 | 12 | <1 | 16 | 10 h 10 min |
| December | 46°F | 27°F | 36.5°F | 4.01 | 3.5 | 16 | <1 | 23 | 9 h 30 min |
| Year (annual) | 65°F | 43°F | 54.0°F | 50.97 | 17.3 | 159 | 15 | 115 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −6°C | −0.2°C | 90 mm | 14 cm |
| February | 8°C | −5°C | 1.6°C | 83 mm | 10 cm |
| March | 12°C | −1°C | 5.7°C | 107 mm | 8 cm |
| April | 19°C | 5°C | 12.0°C | 104 mm | 1 cm |
| May | 24°C | 11°C | 17.2°C | 127 mm | 0 cm |
| June | 28°C | 15°C | 21.4°C | 129 mm | 0 cm |
| July | 29°C | 18°C | 23.6°C | 164 mm | 0 cm |
| August | 29°C | 17°C | 23.0°C | 120 mm | 0 cm |
| September | 26°C | 13°C | 19.7°C | 88 mm | 0 cm |
| October | 20°C | 6°C | 13.1°C | 95 mm | 0 cm |
| November | 14°C | 0°C | 6.9°C | 86 mm | 2 cm |
| December | 8°C | −3°C | 2.5°C | 102 mm | 9 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00463361; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Gassaway?
Normal highs sit between 65°F and 85°F in April, May, June, July, August, September and October. Of those, September has the fewest days with rain (10).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00463361.
When is the last frost in Gassaway?
In Gassaway, the last spring frost (32°F) comes after April 20 in half of years and after May 9 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 12 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 201 year in 10 after May 9; 9 in 10 after April 8
- First autumn frost, half of years before
- October 251 year in 10 before October 12; 9 in 10 before November 4
NOAA puts the median frost-free season at 185 days, and the season without a hard freeze (28°F) at 206 days.
A hard freeze (28°F) comes after April 9 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Gassaway in zone 6b in ZIP code 26624, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Gassaway's NOAA station is in zone 6b: the coldest night of a typical year reaches −2°F (16 complete years).
Frost dates for every NOAA station in West Virginia · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00463361; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Gassaway?
In a normal year in Gassaway, 15 days a year reach 90°F, 115 nights fall to 32°F or colder and 159 days bring measurable precipitation.
- Days at 90°F or more
- 15a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 115a normal year
- Days that stay below freezing
- 17high of 32°F or less
- Days with 0.01 inch of precipitation
- 159a normal year
- Days with 1 inch of snow or more
- 10a normal year
The highest temperature in this station's record (since 1951) is 105°F, on September 3, 1953; the lowest is −22°F, on January 19, 1994.
The wettest calendar year on that record is 1989, with 61.81 in; the snowiest season is 1963–64, with 58.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00463361; records: ACIS (NOAA Regional Climate Centers), station USC00463361. Records use complete months only; a month missing more than three days is left out.
How sunny is Gassaway?
Over a year 69% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Gassaway, 3.9 kWh per square metre a day. August is the sunniest month (76%) and January the cloudiest (56%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 56% | 1.8 |
| February | 58% | 2.5 |
| March | 63% | 3.6 |
| April | 67% | 4.8 |
| May | 68% | 5.3 |
| June | 74% | 6.0 |
| July | 74% | 5.8 |
| August | 76% | 5.3 |
| September | 75% | 4.4 |
| October | 69% | 3.2 |
| November | 68% | 2.3 |
| December | 57% | 1.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Gassaway need?
A normal year in Gassaway brings 4,949 heating degree days, 8% fewer than the median U.S. place (5,373), and 961 cooling degree days, 6% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,541 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,031 | 0 |
| February | 846 | 0 |
| March | 709 | 0 |
| April | 352 | 10 |
| May | 132 | 68 |
| June | 17 | 184 |
| July | 1 | 297 |
| August | 2 | 261 |
| September | 48 | 125 |
| October | 308 | 17 |
| November | 620 | 0 |
| December | 885 | 0 |
| Year (annual) | 4,949 | 961 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00463361. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Gassaway been warmer than normal lately?
2025 averaged 53.7°F, 0.3°F below the 1991-2020 normal of 54.0°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 55.1°F | +1.1°F | 47.32 | 12.5 |
| 2023 | 55.1°F | +1.1°F | 43.30 | – |
| 2024 | 56.6°F | +2.6°F | 42.80 | – |
| 2025 | 53.7°F | −0.3°F | 47.15 | – |
Over 43 complete years from 1953 to 2025, the station's annual mean temperature rose at a fitted 4.3°F per century (+0.24°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00463361; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Gassaway's climate compare?
Gassaway is warmer than 45 of the other 62 places with their own NOAA record in West Virginia, and wetter than 44. Across the 7,247 U.S. stations with normals, its annual mean of 54.0°F is warmer than 57%.
In the Köppen classification computed from these normals, Gassaway is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Gassaway share this climate record?
Birch River has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Birch River, WV6 people · 12 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Gassaway's climate
What is the coldest month in Gassaway?
January, with a normal high of 42°F and a normal low of 22°F. The warmest is July (85°F by day, 64°F at night).
Does it snow in Gassaway?
Yes: 17 inches in a normal year, falling on 13 days with 0.1 inch or more, the most in January (5.4 inches).
What is the rainiest month in Gassaway?
July, with 6.44 in of precipitation in a normal year; the driest is February with 3.25 in.
What plant hardiness zone is Gassaway in?
The USDA's 2023 map puts Gassaway in zone 6b in ZIP code 26624, the nearest ZIP area. By the same method at Gassaway's NOAA station, the coldest night of a typical year reaches −2°F (16 years, 1991-2020): zone 6b.
How late can frost come in Gassaway?
In half of years the last 32°F night comes after April 20; in one year in ten it comes after May 9. Waiting until May 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- West Virginia climateThe statewide normals and every place in the state
- Sutton, WV4 miles from this station, 54.8°F a year
- Rosedale (3 mi NNW), WV13 miles from this station, 51.2°F a year
- Glenville, WV19 miles from this station, 53.9°F a year
- Webster Springs, WV21 miles from this station, 51.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made