Williston (ND) monthly weather averages

Contents

Average daytime temperature

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

Williston average temperature chart (Celsius) Williston average temperature chart (Fahrenheit)
Average monthly temperatures in Williston (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -7.1 -3.1 3.9 12.9 19.9 25.2 29 28.1 20.9 14.1 3.1 -4.9
°F 19.2 26.4 38.9 55.2 67.8 77.4 84.1 82.6 69.7 57.5 37.6 23.1

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.

Williston monthly rainfall chart (mm) Williston monthly rainfall chart (inches)
Average monthly rainfall in Williston (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 12 10 14 32 49 72 51 39 36 20 12 12
inches 0.5 0.4 0.6 1.3 1.9 2.8 2 1.5 1.4 0.8 0.5 0.5
Rainy days 8 7 8 8 10 10 9 7 7 5 6 9

Average annual rainfall in Williston: 301.9mm (118.9 inches)

Average daily sunshine

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

Williston average daily sunshine chart
Average daily sunshine Williston
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.2 6.5 7.7 8.9 10.2 11.6 12.7 11.4 8.9 6.9 4.6 4.6

Day / night temperatures

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

Williston average minimum / maximum temperatures (Celsius) Williston average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Williston (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -18.8 -14.8 -8.2 -0.9 5.6 10.7 13.5 12.1 5.7 -0.3 -8.6 -16.2
Max °C -6.9 -2.8 4.2 13.3 20.3 25.6 29.4 28.5 21.3 14.5 3.4 -4.7
Min °F -1.8 5.4 17.3 30.5 42 51.2 56.2 53.8 42.3 31.5 16.5 2.9
Max °F 9 16.2 28.4 43.2 55.2 64.6 70.5 68.5 56.3 44.8 27.3 13.3

Sea temperature

The graph below shows the average sea temperature.

Williston average sea temperature chart (Celsius) Williston average sea temperature chart (Fahrenheit)
Average sea temperature around Williston in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.7 5.6 5.8 6.5 7.6 9.4 11.8 14.4 13.4 10.6 8 6.3
°F 42.3 42.1 42.5 43.6 45.6 48.9 53.3 57.9 56.2 51 46.3 43.4

Wind speed

The graph below shows the average wind speed.

Williston average winspeed by month (km/h) Williston average winspeed by month (mph)
Average wind speed in Williston (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 17 18 20 19 18 17 17 17 18 16 17
mph 11 11 11 12 12 11 10 10 11 11 10 11

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.

Williston relative humidity averages
Average relative humidity in Williston
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
76% 76% 73% 61% 59% 60% 56% 55% 61% 65% 75% 77%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Williston weather stats

Williston weather statistics
Hottest month: July 29°C 84.2°F
Driest month: February 10mm 0.4ins
Sunniest month: July 12.7hrs
Coldest month: January -7.1°C 19.2°F
Wettest month: June 72mm 2.8ins
Warmest sea: August 14.4°C 57.9°F
Map showing location of Williston (48.14697, -103.61797) Williston map pin © Google

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