Keyser, West Virginia climate: Normal weather by month, frost dates and records
Keyser's normal year runs from 21°F January nights to 89°F July afternoons, with 41.4 inches of precipitation and 34 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.4°C, January lows of −6°C, July highs of 31°C, 1,052 mm of precipitation a year.
- NOAA stationKeyser (2 mi SSW)
- Station IDUSC00464840
- Location39.42°N 79.00°W
- Elevation965 ft (294 m)
- Population4,802
On October 23, the normal high in Keyser is 65°F and the normal low 38°F, and the chance of measurable rain or snow is 36%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Keyser.
- Jan 40° 21°
- Feb 44° 22°
- Mar 53° 28°
- Apr 67° 37°
- May 76° 47°
- Jun 84° 56°
- Jul 89° 61°
- Aug 87° 59°
- Sep 80° 52°
- Oct 67° 40°
- Nov 54° 31°
- Dec 43° 25°
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 Keyser each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 21°F. The most precipitation falls in May (4.54 in), the least in February (2.57 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 40°F | 21°F | 30.1°F | 2.77 | 9.6 | 14 | <1 | 27 | 9 h 40 min |
| February | 44°F | 22°F | 32.8°F | 2.57 | 10.3 | 13 | <1 | 24 | 10 h 40 min |
| March | 53°F | 28°F | 40.6°F | 3.79 | 5.5 | 14 | <1 | 21 | 11 h 50 min |
| April | 67°F | 37°F | 51.8°F | 3.85 | 0.2 | 15 | 1 | 8 | 13 h 10 min |
| May | 76°F | 47°F | 61.3°F | 4.54 | 0.0 | 16 | 3 | 1 | 14 h 20 min |
| June | 84°F | 56°F | 69.9°F | 4.34 | 0.0 | 14 | 8 | <1 | 15 h |
| July | 89°F | 61°F | 74.7°F | 3.83 | 0.0 | 11 | 15 | <1 | 14 h 40 min |
| August | 87°F | 59°F | 72.8°F | 3.25 | 0.0 | 12 | 11 | <1 | 13 h 50 min |
| September | 80°F | 52°F | 65.7°F | 3.57 | 0.0 | 10 | 4 | <1 | 12 h 30 min |
| October | 67°F | 40°F | 53.8°F | 3.11 | 0.2 | 11 | <1 | 5 | 11 h 10 min |
| November | 54°F | 31°F | 42.5°F | 2.74 | 1.1 | 10 | <1 | 17 | 10 h |
| December | 43°F | 25°F | 34.1°F | 3.04 | 6.6 | 13 | <1 | 24 | 9 h 20 min |
| Year (annual) | 65°F | 40°F | 52.5°F | 41.40 | 33.5 | 151 | 42 | 127 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −6°C | −1.1°C | 70 mm | 24 cm |
| February | 7°C | −6°C | 0.4°C | 65 mm | 26 cm |
| March | 12°C | −2°C | 4.8°C | 96 mm | 14 cm |
| April | 19°C | 3°C | 11.0°C | 98 mm | 1 cm |
| May | 24°C | 8°C | 16.3°C | 115 mm | 0 cm |
| June | 29°C | 13°C | 21.1°C | 110 mm | 0 cm |
| July | 31°C | 16°C | 23.7°C | 97 mm | 0 cm |
| August | 30°C | 15°C | 22.7°C | 83 mm | 0 cm |
| September | 27°C | 11°C | 18.7°C | 91 mm | 0 cm |
| October | 20°C | 5°C | 12.1°C | 79 mm | 1 cm |
| November | 12°C | −1°C | 5.8°C | 70 mm | 3 cm |
| December | 6°C | −4°C | 1.2°C | 77 mm | 17 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00464840; 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 Keyser?
Normal highs sit between 65°F and 85°F in April, May, June, 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 USC00464840.
When is the last frost in Keyser?
In Keyser, the last spring frost (32°F) comes after April 30 in half of years and after May 19 in one year in ten; the first autumn frost comes before October 15 in half of years and before October 1 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 301 year in 10 after May 19; 9 in 10 after April 14
- First autumn frost, half of years before
- October 151 year in 10 before October 1; 9 in 10 before October 28
NOAA puts the median frost-free season at 167 days, and the season without a hard freeze (28°F) at 192 days.
A hard freeze (28°F) comes after April 16 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Keyser in zone 7a in ZIP code 26726, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Keyser's NOAA station is in zone 7a: the coldest night of a typical year reaches 1°F (25 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 USC00464840; 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 Keyser?
In a normal year in Keyser, 42 days a year reach 90°F (1 of them 100°F or more), 127 nights fall to 32°F or colder and 151 days bring measurable precipitation.
- Days at 90°F or more
- 42a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 127a normal year
- Days that stay below freezing
- 20high of 32°F or less
- Days with 0.01 inch of precipitation
- 151a normal year
- Days with 1 inch of snow or more
- 9a normal year
The highest temperature in this station's record (since 1996) is 104°F, on July 23, 2011; the lowest is −11°F, on January 18, 2009.
The wettest calendar year on that record is 2018, with 67.23 in; the snowiest season is 2009–10, with 83.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00464840; records: ACIS (NOAA Regional Climate Centers), station USC00464840. Records use complete months only; a month missing more than three days is left out.
How sunny is Keyser?
Over a year 68% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Keyser, 3.8 kWh per square metre a day. August is the sunniest month (76%) and December the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 55% | 1.7 |
| February | 59% | 2.5 |
| March | 62% | 3.5 |
| April | 66% | 4.7 |
| May | 67% | 5.3 |
| June | 73% | 5.9 |
| July | 75% | 5.8 |
| August | 76% | 5.2 |
| September | 74% | 4.3 |
| October | 67% | 3.0 |
| November | 66% | 2.1 |
| December | 55% | 1.5 |
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 Keyser need?
A normal year in Keyser brings 5,421 heating degree days, 1% more than the median U.S. place (5,373), and 907 cooling degree days, 0% fewer 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 3,299 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,082 | 0 |
| February | 900 | 0 |
| March | 757 | 1 |
| April | 405 | 10 |
| May | 172 | 57 |
| June | 28 | 176 |
| July | 2 | 304 |
| August | 6 | 247 |
| September | 79 | 99 |
| October | 359 | 13 |
| November | 677 | 0 |
| December | 958 | 0 |
| Year (annual) | 5,421 | 907 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00464840. 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 Keyser been warmer than normal lately?
2024 averaged 55.4°F, 2.9°F above the 1991-2020 normal of 52.5°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 54.3°F | +1.8°F | 34.46 | 32.3 |
| 2022 | 52.1°F | −0.4°F | 33.94 | 32.9 |
| 2023 | 53.9°F | +1.4°F | 32.12 | 9.0 |
| 2024 | 55.4°F | +2.9°F | 43.44 | 24.4 |
Source: observed years: ACIS, station USC00464840. A year counts only with all twelve months complete.
How does Keyser's climate compare?
Keyser is warmer than 26 of the other 62 places with their own NOAA record in West Virginia, and wetter than 12. Across the 7,247 U.S. stations with normals, its annual mean of 52.5°F is warmer than 52%.
In the Köppen classification computed from these normals, Keyser 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 Keyser share this climate record?
21 places have no NOAA station with 1991-2020 normals of their 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.
- Bel Air, MD1,894 people · 14 mi NE
- Westernport, MD1,769 people · 5 mi NW
- Lonaconing, MD987 people · 10 mi N
- Midland, MD476 people · 12 mi N
- Barton, MD457 people · 8 mi N
- Rawlings, MD404 people · 10 mi NE
- McCoole, MD396 people · 3 mi NE
- Gilmore, MD392 people · 12 mi N
- Franklin, MD356 people · 6 mi NW
- Kitzmiller, MD288 people · 10 mi W
- Danville, MD282 people · 8 mi NE
- Moscow, MD273 people · 8 mi N
- Bloomington, MD165 people · 6 mi NW
- Detmold, MD115 people · 9 mi N
- Burlington, WV109 people · 7 mi SE
- Luke, MD84 people · 5 mi NW
- Bier, MD72 people · 12 mi NE
- Dawson, MD42 people · 5 mi NE
- Ocean, MD10 people · 13 mi N
- Nikep, MD0 people · 9 mi N
- Swanton, MD0 people · 12 mi W
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 Keyser's climate
What is the coldest month in Keyser?
January, with a normal high of 40°F and a normal low of 21°F. The warmest is July (89°F by day, 61°F at night).
Does it snow in Keyser?
Yes: 34 inches in a normal year, falling on 23 days with 0.1 inch or more, the most in February (10.3 inches).
What is the rainiest month in Keyser?
May, with 4.54 in of precipitation in a normal year; the driest is February with 2.57 in.
What plant hardiness zone is Keyser in?
The USDA's 2023 map puts Keyser in zone 7a in ZIP code 26726, the nearest ZIP area. By the same method at Keyser's NOAA station, the coldest night of a typical year reaches 1°F (25 years, 1991-2020): zone 7a.
How late can frost come in Keyser?
In half of years the last 32°F night comes after April 30; in one year in ten it comes after May 19. Waiting until May 19 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
- Savage River Dam, MD9 miles from this station, 49.8°F a year
- Romney, WV14 miles from this station, 52.6°F a year
- Frostburg, MD17 miles from this station, 48.6°F a year
- Cumberland, MD21 miles from this station, 53.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made