Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Weather Guide
Sioux Falls, South Dakota, United States Average Monthly Weather
Weather score52Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 14°C, sunshine averages 7.5h per day, and rainfall totals about 613mm.
Annual weather
Annual averages
Temp
14°C
Rain
613mm
Annual total
Sun
7.5h
Weather score
52
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 74mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9.8h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Sioux Falls, South Dakota, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August29°C average high
August is one of Sioux Falls' warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
August74mm average rain
August is wetter than Sioux Falls' yearly average, so flexible plans matter more.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August9.8 hours average sun
August is brighter than Sioux Falls' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August80 weather score
August scores above Sioux Falls' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels in Sioux Falls, South Dakota, United States
Marriott
Sheraton Sioux Falls Hotel & Convention CenterSioux Falls, South Dakota, USA
Courtyard Sioux FallsSioux Falls, South Dakota, USA
Fairfield Inn & Suites Sioux FallsSioux Falls, South Dakota, USA
Fairfield Inn & Suites Sioux Falls AirportSioux Falls, South Dakota, USA
SpringHill Suites by Marriott Sioux FallsSioux Falls, South Dakota, USA
Residence Inn Sioux FallsSioux Falls, South Dakota, USA