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Monthly climate in Dayton, Virginia, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Dayton features a humid subtropical climate (Cfa).Temperatures typically range between 1 °C (33 °F) and 24 °C (75 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1126 mm (44.3 inches) and receives 124 rainy days on the 1 mm (0.04 inches) threshold annually.Dayton enjoys an average of 3070 hours of sunshine throughout the year, and daylight varies from 9 hours 31 minutes to 14 hours 47 minutes per day.

Monthly average temperatures in Dayton, Virginia, United States §

The warmest months in Dayton are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (70 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 4 °C (33 - 39 °F) throughout the day. On average each year, Dayton experiences 94 days above 25 °C (77.0 °F) and 89 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dayton, 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 20°C
(68°F)		 24°C
(76°F)		 25°C
(78°F)		 32°C
(89°F)		 31°C
(89°F)		 32°C
(90°F)		 35°C
(95°F)		 34°C
(94°F)		 32°C
(90°F)		 32°C
(90°F)		 23°C
(74°F)		 19°C
(67°F)
Mean maximum 16°C
(62°F)		 20°C
(69°F)		 24°C
(75°F)		 28°C
(83°F)		 30°C
(86°F)		 31°C
(88°F)		 33°C
(92°F)		 32°C
(90°F)		 31°C
(88°F)		 29°C
(84°F)		 22°C
(73°F)		 17°C
(63°F)
Average high 5°C
(42°F)		 9°C
(48°F)		 12°C
(54°F)		 18°C
(64°F)		 22°C
(73°F)		 26°C
(79°F)		 29°C
(85°F)		 28°C
(82°F)		 25°C
(77°F)		 20°C
(68°F)		 12°C
(53°F)		 8°C
(47°F)
Daily mean 1°C
(33°F)		 4°C
(39°F)		 6°C
(44°F)		 12°C
(53°F)		 17°C
(63°F)		 21°C
(70°F)		 24°C
(75°F)		 22°C
(72°F)		 19°C
(67°F)		 14°C
(58°F)		 6°C
(43°F)		 3°C
(38°F)
Average low -4°C
(26°F)		 -1°C
(30°F)		 1°C
(34°F)		 6°C
(43°F)		 12°C
(53°F)		 16°C
(60°F)		 18°C
(65°F)		 18°C
(64°F)		 14°C
(58°F)		 9°C
(48°F)		 1°C
(34°F)		 -1°C
(30°F)
Mean minimum -16°C
(3°F)		 -14°C
(7°F)		 -9°C
(16°F)		 -3°C
(28°F)		 1°C
(34°F)		 9°C
(49°F)		 13°C
(56°F)		 13°C
(55°F)		 7°C
(44°F)		 -0°C
(32°F)		 -6°C
(22°F)		 -10°C
(15°F)
Minimum -26°C
(-15°F)		 -19°C
(-2°F)		 -12°C
(11°F)		 -5°C
(24°F)		 -1°C
(30°F)		 6°C
(43°F)		 11°C
(53°F)		 11°C
(52°F)		 2°C
(35°F)		 -3°C
(27°F)		 -8°C
(17°F)		 -14°C
(7°F)

Compare climate in Dayton with other places

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

Monthly average precipitation in Dayton, Virginia, United States §

Dayton usually has the most precipitation in May, August and September, with an average of 12 rainy days and 118 mm (4.7 inches) of precipitation per month.The driest months in Dayton are January, March and November. On average, 67 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dayton, 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) 64 (2.5) 90 (3.6) 69 (2.7) 107 (4.2) 128 (5.0) 99 (3.9) 76 (3.0) 115 (4.5) 112 (4.4) 112 (4.4) 70 (2.7) 85 (3.3)
Average precipitation days (≥ 1 mm) 8 11 11 12 14 12 9 13 10 9 7 8

Monthly sunshine hours in Dayton, Virginia, United States §

The sunniest months in Dayton are June, July and August, when the sun shines an average of 10 hours 42 minutes a day.Least sunny months in Dayton: January, February and December receive an average of 5 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dayton, 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 148 176 258 262 290 316 355 313 278 255 224 189
Mean daily daylight hours 9h 49m 10h 46m 11h 58m 13h 13m 14h 16m 14h 47m 14h 30m 13h 34m 12h 22m 11h 8m 10h 3m 9h 31m

Solar UV radiation in Dayton, Virginia, United States §

Dayton experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, November 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 Dayton UV Index data.

Average daily maximum UV levels by month for Dayton, 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 6 7 10 11 11 11 10 9 7 5 3