Sisseton (SD) monthly weather averages

Average daytime temperature

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

Sisseton average temperature chart (Celsius) Sisseton average temperature chart (Fahrenheit)
Average monthly temperatures in Sisseton (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -7.5 -4.4 2.7 12.5 20 25.3 28.6 27.5 21.4 14.6 3.7 -4.9
°F 18.4 24 36.9 54.5 68 77.5 83.4 81.4 70.5 58.2 38.6 23.3

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.

Sisseton monthly rainfall chart (mm) Sisseton monthly rainfall chart (inches)
Average monthly rainfall in Sisseton (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 13 12 27 52 70 91 77 67 49 41 21 13
inches 0.5 0.5 1 2.1 2.8 3.6 3 2.6 1.9 1.6 0.8 0.5
Rainy days 7 7 8 9 10 11 10 9 8 6 6 7

Average annual rainfall in Sisseton: 479.1mm (188.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Sisseton

Sisseton average daily sunshine chart
Average daily sunshine Sisseton
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.8 6.5 7.6 8.7 10 11.2 12.2 10.9 8.7 6.9 4.8 4.5

Day / night temperatures

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

Sisseton average minimum / maximum temperatures (Celsius) Sisseton average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Sisseton (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -19.2 -15.9 -8.2 -0.4 6.5 12 14.7 13.4 7.5 1.1 -7 -15.4
Max °C -7.3 -4.2 3 12.8 20.4 25.6 28.9 27.8 21.7 14.9 4 -4.6
Min °F -2.5 3.5 17.2 31.3 43.6 53.6 58.5 56.1 45.5 34 19.5 4.3
Max °F 8.2 14 27.3 43.2 56.1 65.8 71.2 69.1 58.3 46.4 29.3 14

Sea temperature

The graph below shows the average sea temperature.

Sisseton average sea temperature chart (Celsius) Sisseton average sea temperature chart (Fahrenheit)
Average sea temperature around Sisseton in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.9 6.7 7.1 8 9.3 11.4 14 16.9 15.8 12.5 9.6 7.8
°F 44.5 44.1 44.8 46.3 48.8 52.5 57.2 62.4 60.4 54.5 49.3 46

Wind speed

The graph below shows the average wind speed.

Sisseton average winspeed by month (km/h) Sisseton average winspeed by month (mph)
Average wind speed in Sisseton (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 20 20 22 23 21 19 17 18 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.

Sisseton relative humidity averages
Average relative humidity in Sisseton
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 74% 74% 66% 62% 67% 66% 67% 69% 68% 75% 76%

Other monthly averages

UV index Best time to go?

Sisseton weather stats

Sisseton weather statistics
Hottest month: July 28.6°C 83.5°F
Driest month: February 12mm 0.5ins
Sunniest month: July 12.2hrs
Coldest month: January -7.5°C 18.5°F
Wettest month: June 91mm 3.6ins
Warmest sea: August 16.9°C 62.4°F
Map showing location of Sisseton (45.66468, -97.0498) Sisseton map pin © Google

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