Annual mean 5°C · wettest around November · prevailing wind W
Warmest
22.3 °C
Coldest
-5.1 °C
Wettest
34%
Windiest
5.1 m/s
Prevailing
W
4.1 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 Grand Falls over the whole year is 5°C. July is the hottest month, with highs of about 21°C; February is the coldest, with lows of about -9°C. Grand Falls has no sharply defined rainy season: the chance of rain on a given day runs from 18% in August, the driest month, to 30% in November, the wettest. Winds in Grand Falls are highest in February, averaging 3.8 m/s (14 km/h), and lightest in August, at 2.8 m/s (10 km/h). The prevailing wind is from the W. The clearest skies in Grand Falls come in August, when the sky is typically 67% covered; December is the cloudiest month, at 79%.
Month by month Grand Falls 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
-3°C
-7°C
-9°C
26%
77%
3.6 m/s
0
0
0
February
-4°C
-9°C
-11°C
26%
73%
3.8 m/s
0
0
0
March
-1°C
-6°C
-7°C
27%
72%
3.8 m/s
0
0
1
April
4°C
-1°C
-1°C
26%
74%
3.8 m/s
0
0
10
May
10°C
3°C
5°C
23%
75%
3.4 m/s
8
0
40
June
16°C
9°C
13°C
24%
74%
3.2 m/s
46
6
67
July
21°C
14°C
20°C
19%
70%
2.9 m/s
72
23
62
August
21°C
14°C
19°C
18%
67%
2.8 m/s
73
17
67
September
16°C
9°C
13°C
22%
69%
3.0 m/s
39
4
72
October
10°C
4°C
7°C
21%
69%
2.9 m/s
11
0
48
November
4°C
1°C
-2°C
30%
78%
3.6 m/s
1
0
9
December
-1°C
-4°C
-7°C
27%
79%
3.7 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 Grand Falls weather by season
Year round, Grand Falls has days of about -4°C at their warmest in February, its coolest month, and 21°C in July, its warmest; the coolest hours of the day run from -9°C to 14°C through the year, and the average temperature over the year is 5°C around the clock. Rain is most likely around November 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.
Grand Falls weather in winterDecember to February
High -3°CLow -6°CRain 26%
Winter in Grand Falls has typical daily highs of about -3°C and lows of about -6°C, with a 26% chance of rain on a given day.
Grand Falls weather in springMarch to May
High 4°CLow -1°CRain 25%
Spring in Grand Falls has typical daily highs of about 4°C and lows of about -1°C, with a 25% chance of rain on a given day.
Grand Falls weather in summerJune to August
High 19°CLow 12°CRain 20%
Summer in Grand Falls has typical daily highs of about 19°C and lows of about 12°C, with a 20% chance of rain on a given day.
Grand Falls weather in autumnSeptember to November
High 10°CLow 5°CRain 24%
Autumn in Grand Falls has typical daily highs of about 10°C and lows of about 5°C, with a 24% chance of rain on a given day.
When is the rainy season in Grand Falls?
Grand Falls has no sharply defined rainy season: the chance of rain on a given day runs from 18% in August, the driest month, to 30% in November, the wettest.
What time of year is Grand Falls windiest?
Winds in Grand Falls are highest in February, averaging 3.8 m/s (14 km/h), and lightest in August, at 2.8 m/s (10 km/h). The prevailing wind is from the W.
What is the average temperature in Grand Falls year round?
The average temperature in Grand Falls over the whole year is 5°C. July is the hottest month, with highs of about 21°C; February is the coldest, with lows of about -9°C.