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Monthly climate in Saint Francis, South Dakota, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Saint Francis features a humid continental climate (Dwa).Temperatures typically range between -6 °C (22 °F) and 24 °C (76 °F) through the year, but rarely can drop to -34 °C (-28 °F) or can rise to as high as 39 °C (103 °F).The average annual precipitation amounts to about 628 mm (24.7 inches) and receives 93 rainy days on the 1 mm (0.04 inches) threshold annually.Saint Francis enjoys an average of 3207 hours of sunshine throughout the year, and daylight varies from 9 hours 1 minutes to 15 hours 18 minutes per day.

Monthly average temperatures in Saint Francis, South Dakota, United States §

The warmest months in Saint Francis are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (71 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -2 °C (22 - 29 °F) throughout the day. On average each year, Saint Francis experiences 86 days above 25 °C (77.0 °F) and 142 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saint Francis, 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
(73°F)		 24°C
(76°F)		 29°C
(85°F)		 33°C
(92°F)		 37°C
(98°F)		 39°C
(103°F)		 36°C
(97°F)		 38°C
(101°F)		 28°C
(84°F)		 26°C
(78°F)		 22°C
(72°F)
Mean maximum 11°C
(53°F)		 15°C
(60°F)		 22°C
(72°F)		 27°C
(81°F)		 30°C
(86°F)		 32°C
(90°F)		 37°C
(98°F)		 34°C
(94°F)		 35°C
(94°F)		 27°C
(81°F)		 22°C
(72°F)		 16°C
(61°F)
Average high 2°C
(35°F)		 1°C
(33°F)		 8°C
(47°F)		 13°C
(56°F)		 19°C
(67°F)		 28°C
(82°F)		 30°C
(87°F)		 29°C
(84°F)		 25°C
(77°F)		 14°C
(58°F)		 10°C
(50°F)		 4°C
(39°F)
Daily mean -4°C
(25°F)		 -6°C
(22°F)		 2°C
(36°F)		 6°C
(43°F)		 13°C
(56°F)		 21°C
(71°F)		 24°C
(76°F)		 22°C
(72°F)		 18°C
(65°F)		 8°C
(47°F)		 3°C
(38°F)		 -2°C
(29°F)
Average low -9°C
(16°F)		 -11°C
(12°F)		 -3°C
(26°F)		 -0°C
(32°F)		 8°C
(46°F)		 15°C
(59°F)		 18°C
(65°F)		 16°C
(61°F)		 12°C
(54°F)		 2°C
(37°F)		 -2°C
(28°F)		 -7°C
(20°F)
Mean minimum -24°C
(-10°F)		 -25°C
(-13°F)		 -14°C
(6°F)		 -9°C
(16°F)		 -1°C
(31°F)		 9°C
(48°F)		 12°C
(54°F)		 9°C
(49°F)		 4°C
(39°F)		 -9°C
(16°F)		 -12°C
(11°F)		 -18°C
(-1°F)
Minimum -32°C
(-25°F)		 -34°C
(-28°F)		 -26°C
(-15°F)		 -15°C
(6°F)		 -4°C
(26°F)		 6°C
(43°F)		 11°C
(52°F)		 8°C
(47°F)		 1°C
(35°F)		 -15°C
(5°F)		 -16°C
(3°F)		 -24°C
(-11°F)

Compare climate in Saint Francis with other places

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

Monthly average precipitation in Saint Francis, South Dakota, United States §

Saint Francis 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 Saint Francis 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 Saint Francis, 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) 23 (0.9) 61 (2.4) 62 (2.4) 115 (4.5) 61 (2.4) 72 (2.8) 54 (2.1) 59 (2.3) 52 (2.0) 17 (0.7) 32 (1.3)
Average precipitation days (≥ 1 mm) 5 6 7 10 13 8 11 8 6 9 5 5

Monthly sunshine hours in Saint Francis, South Dakota, United States §

The sunniest months in Saint Francis are June, July and August, when the sun shines an average of 11 hours 41 minutes a day.Least sunny months in Saint Francis: January, February and December receive an average of 6 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint Francis, 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 165 206 244 266 288 361 371 341 281 247 227 205
Mean daily daylight hours 9h 23m 10h 31m 11h 58m 13h 26m 14h 41m 15h 18m 14h 57m 13h 51m 12h 26m 10h 58m 9h 41m 9h 1m

Solar UV radiation in Saint Francis, South Dakota, United States §

Saint Francis 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 Saint Francis UV Index data.

Average daily maximum UV levels by month for Saint Francis, 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 10 8 5 4 3