Annual mean 9°C · wettest around April · prevailing wind SW
Warmest
25.8 °C
Coldest
-3.0 °C
Wettest
23%
Windiest
5.0 m/s
Prevailing
SW
4.2 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 Richmond Hill over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -5°C. Richmond Hill has no sharply defined rainy season: the chance of rain on a given day runs from 9% in September, the driest month, to 18% in April, the wettest. Winds in Richmond Hill are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.7 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in Richmond Hill come in September, when the sky is typically 38% covered; December is the cloudiest month, at 64%.
Month by month Richmond Hill 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
-5°C
-8°C
15%
63%
3.8 m/s
0
0
1
February
-1°C
-4°C
-7°C
15%
60%
3.8 m/s
0
0
4
March
3°C
-2°C
-3°C
14%
52%
3.9 m/s
0
0
8
April
8°C
3°C
3°C
18%
50%
3.8 m/s
6
0
30
May
16°C
11°C
13°C
13%
46%
3.2 m/s
38
9
64
June
22°C
16°C
20°C
12%
42%
3.1 m/s
68
21
63
July
25°C
19°C
25°C
10%
39%
2.8 m/s
70
48
35
August
25°C
18°C
25°C
10%
39%
2.7 m/s
68
49
37
September
21°C
14°C
20°C
9%
38%
2.7 m/s
63
25
61
October
14°C
9°C
10°C
15%
51%
3.1 m/s
30
2
58
November
6°C
2°C
1°C
15%
59%
3.5 m/s
3
0
21
December
-0°C
-2°C
-6°C
17%
64%
3.6 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 Richmond Hill weather by season
Year round, Richmond Hill has days of about -3°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -5°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 April 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.
Richmond Hill weather in winterDecember to February
High -1°CLow -4°CRain 16%
Winter in Richmond Hill has typical daily highs of about -1°C and lows of about -4°C, with a 16% chance of rain on a given day.
Richmond Hill weather in springMarch to May
High 9°CLow 4°CRain 15%
Spring in Richmond Hill has typical daily highs of about 9°C and lows of about 4°C, with a 15% chance of rain on a given day.
Richmond Hill weather in summerJune to August
High 24°CLow 18°CRain 11%
Summer in Richmond Hill has typical daily highs of about 24°C and lows of about 18°C, with a 11% chance of rain on a given day.
Richmond Hill weather in autumnSeptember to November
High 14°CLow 8°CRain 13%
Autumn in Richmond Hill has typical daily highs of about 14°C and lows of about 8°C, with a 13% chance of rain on a given day.
When is the rainy season in Richmond Hill?
Richmond Hill has no sharply defined rainy season: the chance of rain on a given day runs from 9% in September, the driest month, to 18% in April, the wettest.
What time of year is Richmond Hill windiest?
Winds in Richmond Hill are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.7 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in Richmond Hill year round?
The average temperature in Richmond Hill over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -5°C.