Annual mean 6°C · wettest around March · prevailing wind W
Warmest
27.2 °C
Coldest
-9.8 °C
Wettest
59%
Windiest
6.8 m/s
Prevailing
W
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 Bismarck over the whole year is 6°C. July is the hottest month, with highs of about 27°C; February is the coldest, with lows of about -12°C. The rainy (wet) season in Bismarck runs from December to April, peaking in March with a 54% chance of rain on a given day. The dry season is October to November; November is the driest month, at 29%. Winds in Bismarck are highest in April, averaging 5.2 m/s (19 km/h), and lightest in July, at 3.7 m/s (13 km/h). The prevailing wind is from the W. The clearest skies in Bismarck come in July, when the sky is typically 20% covered; January is the cloudiest month, at 46%.
Month by month Bismarck 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
-8°C
-11°C
-14°C
51%
46%
4.4 m/s
0
0
0
February
-6°C
-12°C
-13°C
52%
41%
4.3 m/s
0
0
1
March
2°C
-6°C
-5°C
54%
42%
4.8 m/s
0
0
11
April
9°C
0°C
2°C
52%
39%
5.2 m/s
5
0
30
May
18°C
9°C
13°C
41%
34%
4.7 m/s
41
5
63
June
24°C
15°C
21°C
45%
25%
4.4 m/s
67
28
54
July
27°C
18°C
25°C
50%
20%
3.7 m/s
60
50
31
August
25°C
15°C
23°C
38%
23%
3.7 m/s
67
38
44
September
21°C
11°C
17°C
47%
27%
4.1 m/s
57
15
63
October
12°C
3°C
6°C
33%
35%
4.6 m/s
16
1
42
November
3°C
-4°C
-3°C
29%
39%
4.5 m/s
2
0
14
December
-5°C
-9°C
-12°C
52%
43%
4.6 m/s
0
0
1
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 Bismarck weather by season
Year round, Bismarck has days of about -8°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -12°C to 18°C through the year, and the average temperature over the year is 6°C around the clock. Rain is most likely around March and least likely around November. 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.
Bismarck weather in winterDecember to February
High -6°CLow -11°CRain 52%
Winter in Bismarck has typical daily highs of about -6°C and lows of about -11°C, with a 52% chance of rain on a given day.
Bismarck weather in springMarch to May
High 10°CLow 1°CRain 49%
Spring in Bismarck has typical daily highs of about 10°C and lows of about 1°C, with a 49% chance of rain on a given day.
Bismarck weather in summerJune to August
High 25°CLow 16°CRain 44%
Summer in Bismarck has typical daily highs of about 25°C and lows of about 16°C, with a 44% chance of rain on a given day.
Bismarck weather in autumnSeptember to November
High 12°CLow 3°CRain 36%
Autumn in Bismarck has typical daily highs of about 12°C and lows of about 3°C, with a 36% chance of rain on a given day.
When is the rainy season in Bismarck?
The rainy (wet) season in Bismarck runs from December to April, peaking in March with a 54% chance of rain on a given day. The dry season is October to November; November is the driest month, at 29%.
What time of year is Bismarck windiest?
Winds in Bismarck are highest in April, averaging 5.2 m/s (19 km/h), and lightest in July, at 3.7 m/s (13 km/h). The prevailing wind is from the W.
What is the average temperature in Bismarck year round?
The average temperature in Bismarck over the whole year is 6°C. July is the hottest month, with highs of about 27°C; February is the coldest, with lows of about -12°C.