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Monthly climate in Vermillion, South Dakota, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Vermillion features a humid continental climate (Dfa).Temperatures typically range between -5 °C (22 °F) and 25 °C (77 °F) through the year, but rarely can drop to -33 °C (-28 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 858 mm (33.8 inches) and receives 98 rainy days on the 1 mm (0.04 inches) threshold annually.Vermillion enjoys an average of 3103 hours of sunshine throughout the year, and daylight varies from 9 hours 4 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Vermillion, South Dakota, United States §

The warmest months in Vermillion are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (73 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -2 °C (22 - 28 °F) throughout the day. On average each year, Vermillion experiences 95 days above 25 °C (77.0 °F) and 131 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Vermillion, South Dakota, 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 14°C
(57°F)		 21°C
(70°F)		 25°C
(78°F)		 30°C
(86°F)		 35°C
(95°F)		 36°C
(96°F)		 37°C
(98°F)		 36°C
(97°F)		 34°C
(93°F)		 31°C
(88°F)		 26°C
(80°F)		 18°C
(64°F)
Mean maximum 10°C
(50°F)		 15°C
(59°F)		 22°C
(71°F)		 27°C
(82°F)		 31°C
(89°F)		 33°C
(92°F)		 35°C
(96°F)		 33°C
(91°F)		 33°C
(92°F)		 29°C
(84°F)		 20°C
(68°F)		 13°C
(55°F)
Average high -1°C
(31°F)		 -0°C
(32°F)		 9°C
(48°F)		 14°C
(58°F)		 21°C
(70°F)		 29°C
(84°F)		 30°C
(86°F)		 28°C
(83°F)		 25°C
(78°F)		 15°C
(60°F)		 9°C
(48°F)		 3°C
(37°F)
Daily mean -5°C
(23°F)		 -5°C
(22°F)		 3°C
(38°F)		 8°C
(47°F)		 16°C
(60°F)		 23°C
(74°F)		 25°C
(77°F)		 23°C
(73°F)		 20°C
(68°F)		 10°C
(50°F)		 3°C
(37°F)		 -2°C
(28°F)
Average low -10°C
(15°F)		 -11°C
(13°F)		 -2°C
(29°F)		 2°C
(37°F)		 10°C
(51°F)		 18°C
(64°F)		 20°C
(68°F)		 17°C
(64°F)		 14°C
(57°F)		 5°C
(41°F)		 -2°C
(28°F)		 -7°C
(20°F)
Mean minimum -22°C
(-8°F)		 -23°C
(-8°F)		 -12°C
(10°F)		 -8°C
(19°F)		 3°C
(37°F)		 12°C
(53°F)		 14°C
(57°F)		 11°C
(53°F)		 6°C
(44°F)		 -5°C
(23°F)		 -11°C
(12°F)		 -18°C
(-0°F)
Minimum -32°C
(-25°F)		 -33°C
(-28°F)		 -23°C
(-9°F)		 -16°C
(4°F)		 0°C
(33°F)		 9°C
(48°F)		 12°C
(54°F)		 9°C
(49°F)		 5°C
(41°F)		 -10°C
(14°F)		 -15°C
(6°F)		 -24°C
(-11°F)

Compare climate in Vermillion with other places

Compare temperature, precipitation, sunshine, UV index in Vermillion, South Dakota, United States with other places around the world.

Monthly average precipitation in Vermillion, South Dakota, United States §

Vermillion usually has the most precipitation in May, June and August, with an average of 11 rainy days and 112 mm (4.4 inches) of precipitation per month.The driest months in Vermillion are January, February and November. On average, 25 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Vermillion, South Dakota, 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) 25 (1.0) 26 (1.0) 79 (3.1) 85 (3.3) 148 (5.8) 94 (3.7) 82 (3.2) 93 (3.7) 85 (3.3) 76 (3.0) 23 (0.9) 42 (1.6)
Average precipitation days (≥ 1 mm) 4 6 8 10 14 11 9 10 9 8 5 4

Monthly sunshine hours in Vermillion, South Dakota, United States §

The sunniest months in Vermillion are June, July and August, when the sun shines an average of 11 hours 25 minutes a day.Least sunny months in Vermillion: January, February and December receive an average of 6 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Vermillion, South Dakota, 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 155 207 229 259 274 352 370 327 266 233 218 207
Mean daily daylight hours 9h 25m 10h 33m 11h 58m 13h 25m 14h 39m 15h 15m 14h 55m 13h 49m 12h 25m 10h 59m 9h 43m 9h 4m

Solar UV radiation in Vermillion, South Dakota, United States §

Vermillion experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Vermillion UV Index data.

Average daily maximum UV levels by month for Vermillion, South Dakota, 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 6 8 9 11 10 9 8 5 3 2