Grand Forks monthly weather averages

Contents

Average daytime temperature

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

Grand Forks average temperature chart (Celsius) Grand Forks average temperature chart (Fahrenheit)
Average monthly temperatures in Grand Forks (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -2.9 1.5 6.1 12 16.8 21.2 25.3 25 19.5 11.6 2.7 -2.2
°F 26.8 34.8 43.1 53.6 62.3 70.2 77.5 77.1 67.1 52.8 36.9 28

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.

Grand Forks monthly rainfall chart (mm) Grand Forks monthly rainfall chart (inches)
Average monthly rainfall in Grand Forks (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 78 53 47 38 58 55 35 42 33 37 68 87
inches 3.1 2.1 1.9 1.5 2.3 2.2 1.4 1.6 1.3 1.4 2.7 3.4
Rainy days 14 11 12 10 12 11 7 8 8 9 14 15

Average annual rainfall in Grand Forks: 561.566mm (221.1 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Grand Forks

Grand Forks average daily sunshine chart
Average daily sunshine Grand Forks
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.7 3.1 4.6 6.2 7.4 8.3 10 9.2 7 4.9 2 1.4

Day / night temperatures

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

Grand Forks average minimum / maximum temperatures (Celsius) Grand Forks average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Grand Forks (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -10.5 -7.4 -4.4 -0.7 3.1 6.8 8.7 8.4 4.1 -0.5 -4.3 -8.8
Max °C -2.7 1.8 6.4 12.3 17.2 21.6 25.7 25.5 19.9 11.9 2.9 -2.1
Min °F 13.1 18.8 24.1 30.7 37.5 44.2 47.7 47 39.4 31.2 24.3 16.3
Max °F 20.1 27 33.8 42.4 50.2 57.6 63 62.4 53.6 42.3 30.7 22.3

Sea temperature

The graph below shows the average sea temperature.

Grand Forks average sea temperature chart (Celsius) Grand Forks average sea temperature chart (Fahrenheit)
Average sea temperature around Grand Forks in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.8 6.8 6.9 7.3 8.2 9.8 11.5 12.5 12 10.2 8.5 7.3
°F 44.3 44.2 44.4 45.1 46.8 49.7 52.7 54.5 53.5 50.4 47.2 45.1

Wind speed

The graph below shows the average wind speed.

Grand Forks average winspeed by month (km/h) Grand Forks average winspeed by month (mph)
Average wind speed in Grand Forks (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 11 11 10 12 10 10 10 9 9 9 11 11
mph 7 7 7 7 7 7 6 6 6 6 7 7

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.

Grand Forks relative humidity averages
Average relative humidity in Grand Forks
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
78% 77% 68% 59% 58% 58% 54% 54% 64% 71% 78% 81%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Grand Forks weather stats

Grand Forks weather statistics
Hottest month: July 25.3°C 77.5°F
Driest month: September 33mm 1.3ins
Sunniest month: August 9.2hrs
Coldest month: January -2.9°C 26.8°F
Wettest month: December 87mm 3.4ins
Warmest sea: August 12.5°C 54.5°F
Map showing location of Grand Forks (49.03309, -118.4356) Grand Forks map pin © Google

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