Sioux Falls (SD) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Sioux Falls

Sioux Falls average temperature chart (Celsius) Sioux Falls average temperature chart (Fahrenheit)
Average monthly temperatures in Sioux Falls (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -4.6 -1.5 5.5 14.8 21.4 26.7 29.9 28.3 22.7 16 6.1 -2.5
°F 23.8 29.3 42 58.6 70.5 80.1 85.8 82.9 72.8 60.7 43 27.5

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Sioux Falls monthly rainfall chart (mm) Sioux Falls monthly rainfall chart (inches)
Average monthly rainfall in Sioux Falls (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 13 17 41 63 79 92 71 74 74 43 28 17
inches 0.5 0.7 1.6 2.5 3.1 3.6 2.8 2.9 2.9 1.7 1.1 0.7
Rainy days 7 7 9 10 11 11 10 9 9 6 7 6

Average annual rainfall in Sioux Falls: 560.033mm (220.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Sioux Falls

Sioux Falls average daily sunshine chart
Average daily sunshine Sioux Falls
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 6.8 7.7 8.6 9.9 11.4 11.9 10.7 8.8 7.3 5.3 5

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Sioux Falls average minimum / maximum temperatures (Celsius) Sioux Falls average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Sioux Falls (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -16.1 -12.6 -5.4 1.5 7.7 13.4 16.6 15 9.2 2.1 -5.2 -13.2
Max °C -4.3 -1.3 5.8 15.1 21.7 27.1 30.2 28.6 23 16.3 6.4 -2.3
Min °F 3 9.4 22.3 34.7 45.9 56 61.9 59 48.6 35.8 22.6 8.3
Max °F 13.6 19.6 32.4 46.9 58.5 68.4 74.1 71.2 61 48.6 33.1 18.1

Sea temperature

The graph below shows the average sea temperature.

Sioux Falls average sea temperature chart (Celsius) Sioux Falls average sea temperature chart (Fahrenheit)
Average sea temperature around Sioux Falls in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.1 7.9 8.3 9.3 10.8 13 15.6 18.3 17.2 13.9 10.9 9
°F 46.6 46.2 46.9 48.7 51.5 55.4 60 65 62.9 57 51.7 48.2

Wind speed

The graph below shows the average wind speed.

Sioux Falls average winspeed by month (km/h) Sioux Falls average winspeed by month (mph)
Average wind speed in Sioux Falls (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 19 22 23 21 19 17 17 18 19 19 19
mph 12 12 14 14 13 12 11 11 11 12 12 12

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Sioux Falls relative humidity averages
Average relative humidity in Sioux Falls
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 73% 72% 65% 64% 65% 65% 68% 70% 67% 73% 76%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Sioux Falls weather stats

Sioux Falls weather statistics
Hottest month: July 29.9°C 85.8°F
Driest month: January 13mm 0.5ins
Sunniest month: July 11.9hrs
Coldest month: January -4.6°C 23.7°F
Wettest month: June 92mm 3.6ins
Warmest sea: August 18.3°C 64.9°F
Map showing location of Sioux Falls (43.54997, -96.70033) Sioux Falls map pin © Google

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