Annual mean 3°C · wettest around December · prevailing wind NW
Warmest
22.4 °C
Coldest
-12.8 °C
Wettest
36%
Windiest
4.6 m/s
Prevailing
NW
3.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Mistassini over the whole year is 3°C. July is the hottest month, with highs of about 22°C; February is the coldest, with lows of about -16°C. Mistassini has no sharply defined rainy season: the chance of rain on a given day runs from 23% in August, the driest month, to 31% in December, the wettest. Winds in Mistassini are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 2.7 m/s (10 km/h). The prevailing wind is from the NW. The clearest skies in Mistassini come in August, when the sky is typically 58% covered; November is the cloudiest month, at 76%.
Month by month Mistassini 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
-12°C
-15°C
-18°C
26%
67%
3.5 m/s
0
0
0
February
-11°C
-16°C
-17°C
28%
62%
3.5 m/s
0
0
0
March
-4°C
-10°C
-10°C
26%
64%
3.8 m/s
0
0
1
April
4°C
-2°C
-2°C
26%
62%
3.8 m/s
0
0
13
May
14°C
7°C
9°C
24%
62%
3.5 m/s
22
2
55
June
19°C
13°C
17°C
28%
61%
3.2 m/s
57
11
69
July
22°C
16°C
21°C
28%
58%
2.8 m/s
75
24
58
August
21°C
14°C
20°C
23%
58%
2.7 m/s
71
21
62
September
17°C
10°C
14°C
24%
58%
2.8 m/s
44
7
70
October
9°C
4°C
5°C
30%
66%
3.1 m/s
10
0
40
November
-0°C
-3°C
-5°C
27%
76%
3.6 m/s
1
0
4
December
-8°C
-11°C
-14°C
31%
71%
3.4 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 Mistassini weather by season
Year round, Mistassini has days of about -12°C at their warmest in January, its coolest month, and 22°C in July, its warmest; the coolest hours of the day run from -16°C to 16°C through the year, and the average temperature over the year is 3°C around the clock. Rain is most likely around December and least likely around August. 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.
Mistassini weather in winterDecember to February
High -10°CLow -14°CRain 28%
Winter in Mistassini has typical daily highs of about -10°C and lows of about -14°C, with a 28% chance of rain on a given day.
Mistassini weather in springMarch to May
High 4°CLow -2°CRain 25%
Spring in Mistassini has typical daily highs of about 4°C and lows of about -2°C, with a 25% chance of rain on a given day.
Mistassini weather in summerJune to August
High 21°CLow 14°CRain 27%
Summer in Mistassini has typical daily highs of about 21°C and lows of about 14°C, with a 27% chance of rain on a given day.
Mistassini weather in autumnSeptember to November
High 9°CLow 4°CRain 27%
Autumn in Mistassini has typical daily highs of about 9°C and lows of about 4°C, with a 27% chance of rain on a given day.
When is the rainy season in Mistassini?
Mistassini has no sharply defined rainy season: the chance of rain on a given day runs from 23% in August, the driest month, to 31% in December, the wettest.
What time of year is Mistassini windiest?
Winds in Mistassini are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 2.7 m/s (10 km/h). The prevailing wind is from the NW.
What is the average temperature in Mistassini year round?
The average temperature in Mistassini over the whole year is 3°C. July is the hottest month, with highs of about 22°C; February is the coldest, with lows of about -16°C.