Annual mean 5°C · wettest around May · prevailing wind NW
Warmest
26.5 °C
Coldest
-12.2 °C
Wettest
36%
Windiest
6.4 m/s
Prevailing
NW
5.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Grand Forks over the whole year is 5°C. July is the hottest month, with highs of about 26°C; February is the coldest, with lows of about -14°C. Grand Forks has no sharply defined rainy season: the chance of rain on a given day runs from 19% in January, the driest month, to 33% in May, the wettest. Winds in Grand Forks are highest in April, averaging 5.1 m/s (18 km/h), and lightest in August, at 3.5 m/s (13 km/h). The prevailing wind is from the NW. The clearest skies in Grand Forks come in July, when the sky is typically 36% covered; January is the cloudiest month, at 61%.
Month by month Grand Forks climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-10°C
-14°C
-17°C
19%
61%
4.8 m/s
0
0
0
February
-9°C
-14°C
-16°C
22%
52%
5.0 m/s
0
0
0
March
-0°C
-7°C
-7°C
24%
52%
4.9 m/s
0
0
6
April
7°C
1°C
1°C
29%
55%
5.1 m/s
3
0
25
May
18°C
10°C
13°C
33%
47%
4.8 m/s
42
6
62
June
24°C
16°C
21°C
33%
43%
4.4 m/s
69
26
55
July
26°C
17°C
25°C
31%
36%
3.6 m/s
67
47
35
August
25°C
16°C
23°C
32%
40%
3.5 m/s
72
34
47
September
20°C
11°C
17°C
30%
45%
4.1 m/s
58
9
69
October
11°C
3°C
5°C
29%
54%
4.6 m/s
13
1
39
November
1°C
-4°C
-6°C
23%
59%
4.8 m/s
1
0
8
December
-7°C
-11°C
-14°C
23%
61%
5.0 m/s
0
0
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Grand Forks weather by season
Year round, Grand Forks has days of about -10°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -14°C to 17°C through the year, and the average temperature over the year is 5°C around the clock. Rain is most likely around May and least likely around January. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Grand Forks weather in winterDecember to February
High -9°CLow -13°CRain 22%
Winter in Grand Forks has typical daily highs of about -9°C and lows of about -13°C, with a 22% chance of rain on a given day.
Grand Forks weather in springMarch to May
High 8°CLow 1°CRain 29%
Spring in Grand Forks has typical daily highs of about 8°C and lows of about 1°C, with a 29% chance of rain on a given day.
Grand Forks weather in summerJune to August
High 25°CLow 16°CRain 32%
Summer in Grand Forks has typical daily highs of about 25°C and lows of about 16°C, with a 32% chance of rain on a given day.
Grand Forks weather in autumnSeptember to November
High 11°CLow 4°CRain 27%
Autumn in Grand Forks has typical daily highs of about 11°C and lows of about 4°C, with a 27% chance of rain on a given day.
When is the rainy season in Grand Forks?
Grand Forks has no sharply defined rainy season: the chance of rain on a given day runs from 19% in January, the driest month, to 33% in May, the wettest.
What time of year is Grand Forks windiest?
Winds in Grand Forks are highest in April, averaging 5.1 m/s (18 km/h), and lightest in August, at 3.5 m/s (13 km/h). The prevailing wind is from the NW.
What is the average temperature in Grand Forks year round?
The average temperature in Grand Forks over the whole year is 5°C. July is the hottest month, with highs of about 26°C; February is the coldest, with lows of about -14°C.