Annual mean 9°C · wettest around May · prevailing wind W
Warmest
26.9 °C
Coldest
-6.5 °C
Wettest
79%
Windiest
7.6 m/s
Prevailing
W
5.7 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 Storm Lake over the whole year is 9°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -9°C. Storm Lake has no sharply defined rainy season: the chance of rain on a given day runs from 69% in February, the driest month, to 76% in May, the wettest. Winds in Storm Lake are highest in April, averaging 5.8 m/s (21 km/h), and lightest in August, at 3.0 m/s (11 km/h). The prevailing wind is from the W. The clearest skies in Storm Lake come in July, when the sky is typically 21% covered; January is the cloudiest month, at 50%.
Month by month Storm Lake 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
-5°C
-9°C
-12°C
72%
50%
4.9 m/s
0
0
1
February
-3°C
-8°C
-10°C
69%
41%
5.0 m/s
0
0
5
March
5°C
-1°C
-1°C
75%
46%
5.4 m/s
1
0
15
April
12°C
4°C
5°C
76%
42%
5.8 m/s
13
0
38
May
19°C
11°C
15°C
76%
39%
4.6 m/s
47
9
60
June
26°C
18°C
25°C
76%
24%
4.2 m/s
58
47
31
July
27°C
19°C
27°C
76%
21%
3.1 m/s
48
61
17
August
25°C
17°C
26°C
76%
27%
3.0 m/s
59
48
30
September
23°C
14°C
21°C
74%
27%
3.6 m/s
63
28
50
October
14°C
6°C
9°C
75%
34%
4.3 m/s
26
1
52
November
6°C
-1°C
-0°C
74%
37%
4.8 m/s
4
0
18
December
-1°C
-6°C
-8°C
73%
42%
4.9 m/s
0
0
3
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 Storm Lake weather by season
Year round, Storm Lake has days of about -5°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -9°C to 19°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around May and least likely around February. 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.
Storm Lake weather in winterDecember to February
High -3°CLow -7°CRain 71%
Winter in Storm Lake has typical daily highs of about -3°C and lows of about -7°C, with a 71% chance of rain on a given day.
Storm Lake weather in springMarch to May
High 12°CLow 5°CRain 76%
Spring in Storm Lake has typical daily highs of about 12°C and lows of about 5°C, with a 76% chance of rain on a given day.
Storm Lake weather in summerJune to August
High 26°CLow 18°CRain 76%
Summer in Storm Lake has typical daily highs of about 26°C and lows of about 18°C, with a 76% chance of rain on a given day.
Storm Lake weather in autumnSeptember to November
High 15°CLow 6°CRain 74%
Autumn in Storm Lake has typical daily highs of about 15°C and lows of about 6°C, with a 74% chance of rain on a given day.
When is the rainy season in Storm Lake?
Storm Lake has no sharply defined rainy season: the chance of rain on a given day runs from 69% in February, the driest month, to 76% in May, the wettest.
What time of year is Storm Lake windiest?
Winds in Storm Lake are highest in April, averaging 5.8 m/s (21 km/h), and lightest in August, at 3.0 m/s (11 km/h). The prevailing wind is from the W.
What is the average temperature in Storm Lake year round?
The average temperature in Storm Lake over the whole year is 9°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -9°C.