Annual mean 11°C · wettest around July · prevailing wind W
Warmest
26.5 °C
Coldest
-2.5 °C
Wettest
67%
Windiest
6.1 m/s
Prevailing
W
5.1 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 Riverdale over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -4°C. Riverdale has no sharply defined rainy season: the chance of rain on a given day runs from 52% in February, the driest month, to 61% in July, the wettest. Winds in Riverdale are highest in March, averaging 5.0 m/s (18 km/h), and lightest in July, at 3.3 m/s (12 km/h). The prevailing wind is from the W. The clearest skies in Riverdale come in August, when the sky is typically 39% covered; January is the cloudiest month, at 65%.
Month by month Riverdale 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
-2°C
-4°C
-8°C
52%
65%
4.9 m/s
0
0
1
February
1°C
-3°C
-5°C
52%
54%
4.9 m/s
1
0
7
March
6°C
2°C
0°C
59%
55%
5.0 m/s
3
0
17
April
12°C
6°C
6°C
57%
55%
4.9 m/s
16
1
38
May
18°C
13°C
15°C
60%
51%
4.2 m/s
43
11
55
June
24°C
19°C
23°C
56%
41%
3.8 m/s
56
34
40
July
26°C
21°C
27°C
61%
40%
3.3 m/s
50
52
21
August
26°C
20°C
26°C
60%
39%
3.3 m/s
56
48
27
September
23°C
16°C
22°C
57%
41%
3.6 m/s
65
28
50
October
16°C
10°C
12°C
59%
50%
4.3 m/s
33
4
56
November
8°C
3°C
2°C
56%
52%
4.7 m/s
6
0
24
December
2°C
-1°C
-4°C
58%
61%
4.7 m/s
0
0
5
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 Riverdale weather by season
Year round, Riverdale has days of about -2°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -4°C to 21°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around July 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.
Riverdale weather in winterDecember to February
High 1°CLow -3°CRain 54%
Winter in Riverdale has typical daily highs of about 1°C and lows of about -3°C, with a 54% chance of rain on a given day.
Riverdale weather in springMarch to May
High 12°CLow 7°CRain 58%
Spring in Riverdale has typical daily highs of about 12°C and lows of about 7°C, with a 58% chance of rain on a given day.
Riverdale weather in summerJune to August
High 26°CLow 20°CRain 59%
Summer in Riverdale has typical daily highs of about 26°C and lows of about 20°C, with a 59% chance of rain on a given day.
Riverdale weather in autumnSeptember to November
High 15°CLow 10°CRain 58%
Autumn in Riverdale has typical daily highs of about 15°C and lows of about 10°C, with a 58% chance of rain on a given day.
When is the rainy season in Riverdale?
Riverdale has no sharply defined rainy season: the chance of rain on a given day runs from 52% in February, the driest month, to 61% in July, the wettest.
What time of year is Riverdale windiest?
Winds in Riverdale are highest in March, averaging 5.0 m/s (18 km/h), and lightest in July, at 3.3 m/s (12 km/h). The prevailing wind is from the W.
What is the average temperature in Riverdale year round?
The average temperature in Riverdale over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -4°C.