Annual mean 11°C · wettest around October · prevailing wind SW
Warmest
32.6 °C
Coldest
1.0 °C
Wettest
77%
Windiest
4.9 m/s
Prevailing
SW
3.9 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 Riverton over the whole year is 11°C. July is the hottest month, with highs of about 32°C; January is the coldest, with lows of about -4°C. Riverton has no sharply defined rainy season: the chance of rain on a given day runs from 55% in July, the driest month, to 70% in October, the wettest. Winds in Riverton are highest in March, averaging 3.7 m/s (13 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in Riverton come in July, when the sky is typically 12% covered; January is the cloudiest month, at 47%.
Month by month Riverton 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
1°C
-4°C
-3°C
68%
47%
2.6 m/s
0
0
2
February
4°C
-2°C
-2°C
69%
44%
3.4 m/s
0
0
9
March
9°C
2°C
4°C
68%
43%
3.7 m/s
5
0
30
April
14°C
5°C
9°C
69%
36%
3.5 m/s
18
0
56
May
19°C
11°C
15°C
69%
30%
3.3 m/s
50
4
69
June
27°C
17°C
23°C
63%
16%
3.5 m/s
67
37
44
July
32°C
21°C
29°C
55%
12%
3.2 m/s
33
74
8
August
30°C
19°C
27°C
63%
14%
3.1 m/s
52
66
17
September
24°C
13°C
20°C
70%
18%
3.1 m/s
66
25
55
October
16°C
6°C
11°C
70%
25%
2.9 m/s
33
1
65
November
8°C
1°C
4°C
69%
30%
2.7 m/s
4
0
32
December
2°C
-3°C
-3°C
70%
46%
2.5 m/s
0
0
4
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 Riverton weather by season
Year round, Riverton has days of about 1°C at their warmest in January, its coolest month, and 32°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 October and least likely around July. 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.
Riverton weather in winterDecember to February
High 2°CLow -3°CRain 69%
Winter in Riverton has typical daily highs of about 2°C and lows of about -3°C, with a 69% chance of rain on a given day.
Riverton weather in springMarch to May
High 14°CLow 6°CRain 69%
Spring in Riverton has typical daily highs of about 14°C and lows of about 6°C, with a 69% chance of rain on a given day.
Riverton weather in summerJune to August
High 30°CLow 19°CRain 60%
Summer in Riverton has typical daily highs of about 30°C and lows of about 19°C, with a 60% chance of rain on a given day.
Riverton weather in autumnSeptember to November
High 16°CLow 7°CRain 70%
Autumn in Riverton has typical daily highs of about 16°C and lows of about 7°C, with a 70% chance of rain on a given day.
When is the rainy season in Riverton?
Riverton has no sharply defined rainy season: the chance of rain on a given day runs from 55% in July, the driest month, to 70% in October, the wettest.
What time of year is Riverton windiest?
Winds in Riverton are highest in March, averaging 3.7 m/s (13 km/h), and lightest in December, at 2.5 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in Riverton year round?
The average temperature in Riverton over the whole year is 11°C. July is the hottest month, with highs of about 32°C; January is the coldest, with lows of about -4°C.