Annual mean 17°C · wettest around January · prevailing wind W
Warmest
30.6 °C
Coldest
9.8 °C
Wettest
31%
Windiest
4.1 m/s
Prevailing
W
3.4 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 Riverdale over the whole year is 17°C. July is the hottest month, with highs of about 31°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 12% in October, the driest month, to 27% in January, the wettest. Winds in Riverdale are highest in January, averaging 2.9 m/s (10 km/h), and lightest in July, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Riverdale come in October, when the sky is typically 37% covered; February is the cloudiest month, at 54%.
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
10°C
4°C
6°C
27%
49%
2.9 m/s
14
0
41
February
14°C
7°C
11°C
20%
54%
2.8 m/s
34
1
63
March
17°C
9°C
14°C
24%
47%
2.9 m/s
51
4
72
April
21°C
12°C
18°C
21%
41%
2.6 m/s
69
17
66
May
25°C
18°C
24°C
21%
45%
2.4 m/s
63
49
34
June
29°C
22°C
30°C
22%
44%
2.1 m/s
27
66
5
July
31°C
23°C
33°C
22%
43%
1.9 m/s
6
52
0
August
30°C
22°C
32°C
22%
45%
1.9 m/s
11
56
2
September
28°C
19°C
28°C
21%
40%
1.9 m/s
37
59
16
October
23°C
14°C
21°C
12%
37%
2.1 m/s
71
29
54
November
17°C
8°C
14°C
19%
43%
2.4 m/s
46
4
72
December
12°C
6°C
9°C
25%
52%
2.6 m/s
20
0
56
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 10°C at their warmest in January, its coolest month, and 31°C in July, its warmest; the coolest hours of the day run from 4°C to 23°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around January and least likely around October. 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 12°CLow 6°CRain 24%
Winter in Riverdale has typical daily highs of about 12°C and lows of about 6°C, with a 24% chance of rain on a given day.
Riverdale weather in springMarch to May
High 21°CLow 13°CRain 22%
Spring in Riverdale has typical daily highs of about 21°C and lows of about 13°C, with a 22% chance of rain on a given day.
Riverdale weather in summerJune to August
High 30°CLow 22°CRain 22%
Summer in Riverdale has typical daily highs of about 30°C and lows of about 22°C, with a 22% chance of rain on a given day.
Riverdale weather in autumnSeptember to November
High 22°CLow 14°CRain 17%
Autumn in Riverdale has typical daily highs of about 22°C and lows of about 14°C, with a 17% 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 12% in October, the driest month, to 27% in January, the wettest.
What time of year is Riverdale windiest?
Winds in Riverdale are highest in January, averaging 2.9 m/s (10 km/h), and lightest in July, at 1.9 m/s (7 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 17°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 4°C.