nomadseason

Monthly climate in Webster, South Dakota, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Webster features a humid continental climate (Dfb).Temperatures typically range between -11 °C (13 °F) and 23 °C (73 °F) through the year, but rarely can drop to -36 °C (-33 °F) or can rise to as high as 36 °C (96 °F).The average annual precipitation amounts to about 693 mm (27.3 inches) and receives 87 rainy days on the 1 mm (0.04 inches) threshold annually.Webster enjoys an average of 3071 hours of sunshine throughout the year, and daylight varies from 8 hours 46 minutes to 15 hours 35 minutes per day.

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

The warmest months in Webster are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (69 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -11 to -5 °C (13 - 23 °F) throughout the day. On average each year, Webster experiences 62 days above 25 °C (77.0 °F) and 155 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Webster, 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 5°C
(42°F)		 15°C
(59°F)		 24°C
(75°F)		 27°C
(81°F)		 33°C
(92°F)		 36°C
(96°F)		 35°C
(95°F)		 34°C
(93°F)		 32°C
(90°F)		 27°C
(81°F)		 23°C
(73°F)		 13°C
(55°F)
Mean maximum 3°C
(39°F)		 6°C
(43°F)		 14°C
(58°F)		 24°C
(75°F)		 29°C
(84°F)		 30°C
(86°F)		 33°C
(92°F)		 31°C
(88°F)		 30°C
(87°F)		 24°C
(76°F)		 15°C
(60°F)		 9°C
(48°F)
Average high -6°C
(21°F)		 -6°C
(21°F)		 3°C
(38°F)		 10°C
(49°F)		 18°C
(65°F)		 26°C
(79°F)		 28°C
(82°F)		 26°C
(78°F)		 22°C
(72°F)		 12°C
(53°F)		 4°C
(40°F)		 -1°C
(30°F)
Daily mean -10°C
(14°F)		 -11°C
(13°F)		 -1°C
(30°F)		 4°C
(40°F)		 13°C
(56°F)		 20°C
(69°F)		 23°C
(73°F)		 21°C
(69°F)		 17°C
(62°F)		 7°C
(45°F)		 -0°C
(32°F)		 -5°C
(23°F)
Average low -14°C
(6°F)		 -16°C
(4°F)		 -6°C
(22°F)		 -1°C
(31°F)		 8°C
(46°F)		 15°C
(59°F)		 18°C
(64°F)		 15°C
(60°F)		 12°C
(53°F)		 3°C
(37°F)		 -4°C
(25°F)		 -9°C
(16°F)
Mean minimum -28°C
(-19°F)		 -29°C
(-19°F)		 -18°C
(0°F)		 -11°C
(13°F)		 -0°C
(32°F)		 9°C
(48°F)		 12°C
(54°F)		 10°C
(49°F)		 3°C
(38°F)		 -7°C
(20°F)		 -13°C
(9°F)		 -23°C
(-9°F)
Minimum -36°C
(-33°F)		 -34°C
(-29°F)		 -29°C
(-19°F)		 -19°C
(-2°F)		 -2°C
(28°F)		 6°C
(43°F)		 9°C
(49°F)		 9°C
(48°F)		 2°C
(35°F)		 -12°C
(11°F)		 -15°C
(5°F)		 -28°C
(-18°F)

Compare climate in Webster with other places

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

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

Webster usually has the most precipitation in August, September and October, with an average of 9 rainy days and 91 mm (3.6 inches) of precipitation per month.The driest months in Webster are January, February and November. On average, 19 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Webster, 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) 20 (0.8) 16 (0.6) 40 (1.6) 59 (2.3) 74 (2.9) 79 (3.1) 77 (3.0) 103 (4.1) 87 (3.4) 81 (3.2) 22 (0.9) 34 (1.3)
Average precipitation days (≥ 1 mm) 5 4 6 9 9 9 8 10 8 9 4 6

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

The sunniest months in Webster are June, July and August, when the sun shines an average of 11 hours 32 minutes a day.Least sunny months in Webster: January, November and December receive an average of 5 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Webster, 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 143 205 242 254 303 359 368 333 256 222 196 184
Mean daily daylight hours 9h 10m 10h 24m 11h 57m 13h 33m 14h 54m 15h 35m 15h 12m 13h 59m 12h 28m 10h 53m 9h 29m 8h 46m

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

Webster experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High 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 Webster UV Index data.

Average daily maximum UV levels by month for Webster, 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 7 9 10 9 9 8 5 3 2