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Monthly climate in Clay, West Virginia, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Clay features a humid subtropical climate (Cfa).Temperatures typically range between 1 °C (35 °F) and 23 °C (74 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 33 °C (92 °F).The average annual precipitation amounts to about 1594 mm (62.8 inches) and receives 168 rainy days on the 1 mm (0.04 inches) threshold annually.Clay enjoys an average of 2864 hours of sunshine throughout the year, and daylight varies from 9 hours 30 minutes to 14 hours 47 minutes per day.

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

The warmest months in Clay are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (70 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 4 °C (35 - 40 °F) throughout the day. On average each year, Clay experiences 95 days above 25 °C (77.0 °F) and 72 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Clay, 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 22°C
(72°F)		 26°C
(80°F)		 28°C
(83°F)		 30°C
(86°F)		 30°C
(87°F)		 32°C
(89°F)		 32°C
(89°F)		 32°C
(91°F)		 33°C
(91°F)		 33°C
(92°F)		 25°C
(77°F)		 21°C
(69°F)
Mean maximum 18°C
(65°F)		 22°C
(72°F)		 25°C
(77°F)		 28°C
(83°F)		 30°C
(86°F)		 31°C
(88°F)		 31°C
(89°F)		 31°C
(88°F)		 31°C
(87°F)		 29°C
(84°F)		 23°C
(74°F)		 19°C
(66°F)
Average high 6°C
(42°F)		 9°C
(49°F)		 13°C
(55°F)		 18°C
(65°F)		 23°C
(73°F)		 26°C
(79°F)		 28°C
(83°F)		 27°C
(81°F)		 25°C
(78°F)		 20°C
(68°F)		 12°C
(54°F)		 8°C
(47°F)
Daily mean 1°C
(35°F)		 4°C
(40°F)		 7°C
(46°F)		 12°C
(54°F)		 18°C
(64°F)		 21°C
(70°F)		 23°C
(74°F)		 22°C
(72°F)		 20°C
(68°F)		 15°C
(59°F)		 7°C
(45°F)		 4°C
(40°F)
Average low -2°C
(28°F)		 0°C
(32°F)		 3°C
(37°F)		 7°C
(45°F)		 13°C
(56°F)		 17°C
(62°F)		 19°C
(67°F)		 18°C
(65°F)		 16°C
(60°F)		 10°C
(51°F)		 2°C
(36°F)		 0°C
(32°F)
Mean minimum -15°C
(5°F)		 -13°C
(9°F)		 -9°C
(17°F)		 -3°C
(27°F)		 3°C
(38°F)		 10°C
(51°F)		 14°C
(57°F)		 13°C
(56°F)		 8°C
(47°F)		 1°C
(35°F)		 -6°C
(21°F)		 -10°C
(14°F)
Minimum -19°C
(-2°F)		 -18°C
(0°F)		 -13°C
(9°F)		 -5°C
(23°F)		 -1°C
(31°F)		 7°C
(44°F)		 12°C
(54°F)		 12°C
(54°F)		 5°C
(41°F)		 -2°C
(29°F)		 -11°C
(13°F)		 -15°C
(6°F)

Compare climate in Clay with other places

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

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

Clay usually has the most precipitation in February, May and June, with an average of 16 rainy days and 165 mm (6.5 inches) of precipitation per month.The driest months in Clay are January, September and November. On average, 100 mm (4.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Clay, 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) 107 (4.2) 161 (6.3) 126 (5.0) 149 (5.9) 171 (6.7) 163 (6.4) 137 (5.4) 130 (5.1) 107 (4.2) 126 (5.0) 87 (3.4) 131 (5.1)
Average precipitation days (≥ 1 mm) 14 16 14 15 18 16 15 15 9 12 10 14

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

The sunniest months in Clay are June, July and August, when the sun shines an average of 10 hours 25 minutes a day.Least sunny months in Clay: January, February and December receive an average of 4 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Clay, 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 116 143 233 238 290 306 342 309 284 243 201 154
Mean daily daylight hours 9h 48m 10h 46m 11h 58m 13h 13m 14h 16m 14h 47m 14h 30m 13h 34m 12h 22m 11h 8m 10h 3m 9h 30m

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

Clay experiences the highest level of ultraviolet (UV) radiation in May, July 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 Clay UV Index data.

Average daily maximum UV levels by month for Clay, 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 9 10 10 10 10 9 7 5 3