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Monthly climate in Porcupine, South Dakota, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Porcupine features a cold semi-arid climate (BSk).Temperatures typically range between -5 °C (23 °F) and 24 °C (76 °F) through the year, but rarely can drop to -30 °C (-22 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 587 mm (23.1 inches) and receives 95 rainy days on the 1 mm (0.04 inches) threshold annually.Porcupine enjoys an average of 3278 hours of sunshine throughout the year, and daylight varies from 9 hours 1 minutes to 15 hours 19 minutes per day.

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

The warmest months in Porcupine are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (70 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -1 °C (23 - 30 °F) throughout the day. On average each year, Porcupine experiences 85 days above 25 °C (77.0 °F) and 140 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Porcupine, 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)		 22°C
(71°F)		 25°C
(77°F)		 29°C
(84°F)		 33°C
(91°F)		 37°C
(100°F)		 40°C
(104°F)		 38°C
(100°F)		 39°C
(102°F)		 30°C
(87°F)		 25°C
(78°F)		 22°C
(71°F)
Mean maximum 11°C
(52°F)		 15°C
(60°F)		 22°C
(72°F)		 27°C
(81°F)		 30°C
(87°F)		 32°C
(90°F)		 37°C
(99°F)		 36°C
(96°F)		 36°C
(97°F)		 28°C
(82°F)		 21°C
(71°F)		 17°C
(63°F)
Average high 2°C
(36°F)		 1°C
(34°F)		 9°C
(48°F)		 13°C
(56°F)		 19°C
(66°F)		 28°C
(82°F)		 31°C
(88°F)		 29°C
(85°F)		 25°C
(77°F)		 14°C
(58°F)		 10°C
(50°F)		 4°C
(40°F)
Daily mean -3°C
(26°F)		 -5°C
(23°F)		 3°C
(37°F)		 6°C
(44°F)		 13°C
(56°F)		 21°C
(70°F)		 24°C
(76°F)		 22°C
(73°F)		 18°C
(65°F)		 8°C
(47°F)		 4°C
(39°F)		 -1°C
(30°F)
Average low -8°C
(18°F)		 -11°C
(13°F)		 -3°C
(26°F)		 -0°C
(32°F)		 7°C
(45°F)		 14°C
(58°F)		 18°C
(64°F)		 16°C
(60°F)		 11°C
(53°F)		 2°C
(36°F)		 -2°C
(28°F)		 -6°C
(22°F)
Mean minimum -21°C
(-6°F)		 -24°C
(-11°F)		 -15°C
(6°F)		 -10°C
(15°F)		 -0°C
(32°F)		 8°C
(46°F)		 12°C
(53°F)		 9°C
(49°F)		 4°C
(39°F)		 -9°C
(15°F)		 -11°C
(12°F)		 -16°C
(3°F)
Minimum -26°C
(-14°F)		 -30°C
(-22°F)		 -27°C
(-17°F)		 -16°C
(3°F)		 -2°C
(29°F)		 6°C
(44°F)		 11°C
(52°F)		 8°C
(47°F)		 1°C
(34°F)		 -15°C
(5°F)		 -17°C
(2°F)		 -22°C
(-7°F)

Compare climate in Porcupine with other places

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

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

Porcupine usually has the most precipitation in April, May and July, with an average of 11 rainy days and 83 mm (3.3 inches) of precipitation per month.The driest months in Porcupine are January, February and November. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Porcupine, 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) 18 (0.7) 25 (1.0) 59 (2.3) 65 (2.6) 124 (4.9) 53 (2.1) 61 (2.4) 42 (1.6) 51 (2.0) 44 (1.7) 17 (0.7) 29 (1.1)
Average precipitation days (≥ 1 mm) 4 7 7 11 12 9 12 8 7 8 5 5

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

The sunniest months in Porcupine are June, July and August, when the sun shines an average of 11 hours 51 minutes a day.Least sunny months in Porcupine: January, February and December receive an average of 6 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Porcupine, 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 171 215 256 276 293 367 375 347 282 250 228 213
Mean daily daylight hours 9h 23m 10h 31m 11h 58m 13h 26m 14h 41m 15h 19m 14h 58m 13h 51m 12h 26m 10h 58m 9h 40m 9h 1m

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

Porcupine experiences the highest level of ultraviolet (UV) radiation in June, 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, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Porcupine UV Index data.

Average daily maximum UV levels by month for Porcupine, 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 11 10 8 5 4 3