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Monthly climate in Keyser, West Virginia, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Keyser features a oceanic climate (Cfb).Temperatures typically range between -1 °C (31 °F) and 23 °C (74 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1199 mm (47.2 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually.Keyser enjoys an average of 2891 hours of sunshine throughout the year, and daylight varies from 9 hours 25 minutes to 14 hours 53 minutes per day.

Monthly average temperatures in Keyser, West Virginia, United States §

The warmest months in Keyser are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (69 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 36 °F) throughout the day. On average each year, Keyser experiences 82 days above 25 °C (77.0 °F) and 94 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Keyser, West Virginia, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 19°C
(66°F)		 25°C
(77°F)		 22°C
(73°F)		 29°C
(84°F)		 30°C
(86°F)		 33°C
(91°F)		 34°C
(94°F)		 34°C
(93°F)		 33°C
(92°F)		 31°C
(88°F)		 24°C
(75°F)		 20°C
(69°F)
Mean maximum 15°C
(60°F)		 19°C
(67°F)		 22°C
(71°F)		 27°C
(81°F)		 29°C
(85°F)		 31°C
(88°F)		 32°C
(91°F)		 32°C
(90°F)		 31°C
(87°F)		 28°C
(83°F)		 22°C
(71°F)		 16°C
(62°F)
Average high 4°C
(39°F)		 7°C
(45°F)		 10°C
(51°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(78°F)		 29°C
(84°F)		 27°C
(82°F)		 24°C
(76°F)		 19°C
(66°F)		 10°C
(51°F)		 6°C
(43°F)
Daily mean -1°C
(31°F)		 2°C
(36°F)		 5°C
(41°F)		 10°C
(51°F)		 16°C
(61°F)		 20°C
(69°F)		 23°C
(74°F)		 22°C
(72°F)		 19°C
(66°F)		 13°C
(56°F)		 5°C
(42°F)		 2°C
(36°F)
Average low -5°C
(24°F)		 -3°C
(28°F)		 0°C
(32°F)		 5°C
(42°F)		 11°C
(52°F)		 15°C
(60°F)		 18°C
(65°F)		 17°C
(64°F)		 14°C
(57°F)		 9°C
(48°F)		 0°C
(33°F)		 -2°C
(29°F)
Mean minimum -17°C
(1°F)		 -14°C
(6°F)		 -11°C
(13°F)		 -3°C
(26°F)		 1°C
(35°F)		 8°C
(47°F)		 13°C
(56°F)		 11°C
(52°F)		 6°C
(43°F)		 -0°C
(32°F)		 -7°C
(20°F)		 -11°C
(13°F)
Minimum -25°C
(-13°F)		 -20°C
(-4°F)		 -15°C
(5°F)		 -6°C
(22°F)		 -2°C
(28°F)		 4°C
(40°F)		 12°C
(54°F)		 9°C
(49°F)		 1°C
(35°F)		 -2°C
(28°F)		 -9°C
(16°F)		 -16°C
(3°F)

Compare climate in Keyser with other places

Compare temperature, precipitation, sunshine, UV index in Keyser, West Virginia, United States with other places around the world.

Monthly average precipitation in Keyser, West Virginia, United States §

Keyser usually has the most precipitation in April, May and September, with an average of 12 rainy days and 124 mm (4.9 inches) of precipitation per month.The driest months in Keyser are January, July and November. On average, 73 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Keyser, West Virginia, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 71 (2.8) 107 (4.2) 87 (3.4) 115 (4.5) 132 (5.2) 114 (4.5) 85 (3.3) 98 (3.9) 124 (4.9) 106 (4.2) 64 (2.5) 96 (3.8)
Average precipitation days (≥ 1 mm) 10 12 12 13 16 14 11 15 9 11 9 11

Monthly sunshine hours in Keyser, West Virginia, United States §

The sunniest months in Keyser are June, July and August, when the sun shines an average of 10 hours 30 minutes a day.Least sunny months in Keyser: January, February and December receive an average of 4 hours 51 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Keyser, West Virginia, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 123 154 242 244 273 305 347 313 283 239 198 164
Mean daily daylight hours 9h 43m 10h 43m 11h 58m 13h 16m 14h 21m 14h 53m 14h 36m 13h 38m 12h 23m 11h 6m 9h 59m 9h 25m

Solar UV radiation in Keyser, West Virginia, United States §

Keyser experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Keyser UV Index data.

Average daily maximum UV levels by month for Keyser, West Virginia, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 7 10 10 10 10 10 8 7 5 3