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Monthly climate in Onancock, Virginia, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Onancock features a humid subtropical climate (Cfa). Temperatures typically range between 5 °C (41 °F) and 27 °C (80 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1163 mm (45.8 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually. Onancock enjoys an average of 3278 hours of sunshine throughout the year, and daylight varies from 9 hours 35 minutes to 14 hours 43 minutes per day.

Monthly average temperatures in Onancock, Virginia, United States §

The warmest months in Onancock are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (75 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 7 °C (41 - 46 °F) throughout the day. On average each year, Onancock experiences 83 days above 25 °C (77.0 °F) and 16 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Onancock, 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 17°C
(62°F)		 17°C
(62°F)		 21°C
(71°F)		 24°C
(76°F)		 29°C
(85°F)		 31°C
(87°F)		 34°C
(93°F)		 31°C
(88°F)		 30°C
(87°F)		 28°C
(83°F)		 23°C
(74°F)		 20°C
(67°F)
Mean maximum 15°C
(59°F)		 15°C
(59°F)		 19°C
(66°F)		 22°C
(72°F)		 27°C
(80°F)		 29°C
(85°F)		 32°C
(89°F)		 30°C
(87°F)		 29°C
(85°F)		 26°C
(79°F)		 21°C
(70°F)		 17°C
(62°F)
Average high 7°C
(45°F)		 9°C
(48°F)		 11°C
(52°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(78°F)		 28°C
(83°F)		 28°C
(82°F)		 25°C
(78°F)		 21°C
(70°F)		 14°C
(57°F)		 10°C
(50°F)
Daily mean 5°C
(41°F)		 6°C
(43°F)		 8°C
(47°F)		 13°C
(57°F)		 18°C
(65°F)		 24°C
(75°F)		 27°C
(80°F)		 26°C
(79°F)		 23°C
(74°F)		 19°C
(66°F)		 11°C
(53°F)		 7°C
(46°F)
Average low 2°C
(37°F)		 4°C
(39°F)		 6°C
(43°F)		 11°C
(52°F)		 16°C
(62°F)		 22°C
(71°F)		 25°C
(77°F)		 24°C
(76°F)		 22°C
(71°F)		 17°C
(63°F)		 9°C
(48°F)		 5°C
(41°F)
Mean minimum -6°C
(22°F)		 -4°C
(26°F)		 -1°C
(31°F)		 5°C
(41°F)		 10°C
(50°F)		 17°C
(63°F)		 21°C
(70°F)		 21°C
(70°F)		 17°C
(63°F)		 11°C
(51°F)		 1°C
(34°F)		 -2°C
(29°F)
Minimum -11°C
(12°F)		 -8°C
(18°F)		 -3°C
(27°F)		 3°C
(37°F)		 7°C
(44°F)		 14°C
(58°F)		 19°C
(67°F)		 19°C
(67°F)		 15°C
(59°F)		 8°C
(46°F)		 -1°C
(30°F)		 -6°C
(22°F)

Compare climate in Onancock with other places

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

Monthly average precipitation in Onancock, Virginia, United States §

Onancock usually has the most precipitation in February, August and October, with an average of 11 rainy days and 113 mm (4.5 inches) of precipitation per month. The driest months in Onancock are January, May and June. On average, 82 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Onancock, 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) 85 (3.3) 111 (4.4) 93 (3.7) 91 (3.6) 89 (3.5) 72 (2.8) 110 (4.3) 117 (4.6) 94 (3.7) 112 (4.4) 90 (3.5) 100 (3.9)
Average precipitation days (≥ 1 mm) 9 12 10 11 10 10 9 13 10 9 8 10

Monthly sunshine hours in Onancock, Virginia, United States §

The sunniest months in Onancock are June, July and August, when the sun shines an average of 11 hours 21 minutes a day. Least sunny months in Onancock: January, February and December receive an average of 5 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Onancock, 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 162 185 271 299 328 341 364 339 298 264 227 194
Mean daily daylight hours 9h 52m 10h 48m 11h 58m 13h 11m 14h 12m 14h 43m 14h 26m 13h 32m 12h 22m 11h 10m 10h 7m 9h 35m

Solar UV radiation in Onancock, Virginia, United States §

Onancock experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme 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 Onancock UV Index data.

Average daily maximum UV levels by month for Onancock, 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 11 10 8 7 5 3

Detailed Monthly Weather Insights for Onancock, Virginia, United States

Discover in-depth weather details for every month in Onancock. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Onancock's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.