Annual mean 8°C · wettest around December · prevailing wind W
Warmest
24.8 °C
Coldest
-7.0 °C
Wettest
47%
Windiest
4.3 m/s
Prevailing
W
3.7 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 Saint-Hyacinthe over the whole year is 8°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -9°C. Saint-Hyacinthe has no sharply defined rainy season: the chance of rain on a given day runs from 34% in September, the driest month, to 44% in December, the wettest. Winds in Saint-Hyacinthe are highest in April, averaging 3.5 m/s (13 km/h), and lightest in September, at 2.3 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Saint-Hyacinthe come in July, when the sky is typically 36% covered; December is the cloudiest month, at 67%.
Month by month Saint-Hyacinthe 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
-6°C
-9°C
-12°C
43%
66%
3.3 m/s
0
0
0
February
-5°C
-8°C
-11°C
42%
56%
3.4 m/s
0
0
1
March
1°C
-4°C
-5°C
40%
54%
3.4 m/s
1
0
5
April
8°C
3°C
3°C
42%
52%
3.5 m/s
5
0
29
May
17°C
10°C
13°C
37%
46%
3.1 m/s
39
6
64
June
22°C
16°C
20°C
38%
43%
2.9 m/s
66
20
60
July
25°C
18°C
24°C
36%
36%
2.5 m/s
68
47
35
August
24°C
17°C
24°C
37%
37%
2.4 m/s
71
40
41
September
20°C
13°C
18°C
34%
37%
2.3 m/s
62
18
67
October
13°C
7°C
10°C
39%
53%
2.8 m/s
23
1
57
November
4°C
1°C
-1°C
41%
61%
3.1 m/s
2
0
13
December
-3°C
-5°C
-8°C
44%
67%
3.2 m/s
0
0
2
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 Saint-Hyacinthe weather by season
Year round, Saint-Hyacinthe has days of about -6°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -9°C to 18°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around December and least likely around September. 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.
Saint-Hyacinthe weather in winterDecember to February
High -5°CLow -7°CRain 43%
Winter in Saint-Hyacinthe has typical daily highs of about -5°C and lows of about -7°C, with a 43% chance of rain on a given day.
Saint-Hyacinthe weather in springMarch to May
High 9°CLow 3°CRain 40%
Spring in Saint-Hyacinthe has typical daily highs of about 9°C and lows of about 3°C, with a 40% chance of rain on a given day.
Saint-Hyacinthe weather in summerJune to August
High 23°CLow 17°CRain 37%
Summer in Saint-Hyacinthe has typical daily highs of about 23°C and lows of about 17°C, with a 37% chance of rain on a given day.
Saint-Hyacinthe weather in autumnSeptember to November
High 12°CLow 7°CRain 38%
Autumn in Saint-Hyacinthe has typical daily highs of about 12°C and lows of about 7°C, with a 38% chance of rain on a given day.
When is the rainy season in Saint-Hyacinthe?
Saint-Hyacinthe has no sharply defined rainy season: the chance of rain on a given day runs from 34% in September, the driest month, to 44% in December, the wettest.
What time of year is Saint-Hyacinthe windiest?
Winds in Saint-Hyacinthe are highest in April, averaging 3.5 m/s (13 km/h), and lightest in September, at 2.3 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Saint-Hyacinthe year round?
The average temperature in Saint-Hyacinthe over the whole year is 8°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -9°C.