+43.5437° · -96.7280° · ELEV 0m
Sioux Falls
United States · South Dakota
Monthly weather averages for Sioux Falls, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
July → JanuaryClimate Overview
Sioux Falls has a continental climate. The warmest month is July (28°C average high) and the coolest is January (-3°C).
№ 02
761 mm / yearRainfall by Month
Sioux Falls sees 761 mm of rain a year. The wettest month is June (108 mm); the driest is January (23 mm).
№ 03
May–SeptemberBest Time to Visit
May–September
10°C – 28°C · 11.5h sun
The best time to visit Sioux Falls is May–September, when temperatures average 10°C–28°C with 11.5 sunshine hours per day.
Some visitors prefer April for cooler, drier conditions.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | -2.6°C | -11.8°C | 23 mm | 6.3 h | 07:56 | 17:15 |
|---|---|---|---|---|---|---|
| February | -1.4°C | -11.8°C | 23 mm | 7.9 h | 07:25 | 17:56 |
| March | 7.0°C | -3.9°C | 53 mm | 8.4 h | 07:39 | 19:32 |
| April | 13.3°C | 2.2°C | 82 mm | 9.1 h | 06:44 | 20:09 |
| May | 20.4°C | 9.6°C | 98 mm | 10.3 h | 06:02 | 20:44 |
| June | 27.3°C | 16.6°C | 108 mm | 12.9 h | 05:45 | 21:09 |
| July | 28.3°C | 18.2°C | 67 mm | 13.2 h | 05:59 | 21:05 |
| August | 26.9°C | 17.2°C | 91 mm | 11.3 h | 06:31 | 20:31 |
| September | 23.8°C | 14.1°C | 74 mm | 9.8 h | 07:06 | 19:38 |
| October | 14.8°C | 5.4°C | 65 mm | 7.9 h | 07:40 | 18:44 |
| November | 6.8°C | -2.3°C | 36 mm | 7.0 h | 07:20 | 17:02 |
| December | 0.3°C | -7.9°C | 41 mm | 6.0 h | 07:53 | 16:51 |
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Temperature, rainfall and sunshine, month by month.