Riverton weather by month

Check out Riverton weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Riverton (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	-1	3	9	15	21	27	32	30	23	16	6	-1
Min temperature (night-time)	-16	-12	-7	-1	4	9	12	10	4	-2	-9	-15
Heat & Humidity	0	0	0	0	0	L	M	M	0	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Riverton

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	6	7	8	9	9	11	11	10	9	7	6	6
Daily hours of daylight	9	11	12	13	15	15	15	14	12	11	10	9
UV Index (Maximum)	1	2	4	6	8	9	10	9	6	4	2	1

Rainfall in Riverton

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	5	6	8	9	9	7	7	5	6	6	5	6
Average monthly rainfall (mm)	6	7	12	26	45	34	18	12	20	17	12	7

More about Riverton

Riverton by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Wyoming (Riverton) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Riverton?

Riverton has a cold desert climate with hot summers.

Riverton weather in January

Expect daytime maximum temperatures of -1°C in Riverton, Wyoming in January based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

-1
-1°C max day temperature
6
6 hours of sunshine per day
5
5 days with some rainfall
-16
-16°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
6
6 mm of monthly rainfall
1
1 (Low) UV index

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Riverton weather in February

Expect daytime maximum temperatures of 3°C in Riverton, Wyoming in February based on long-term weather averages. There are 7 hours of sunshine per day on average, which might fall as snow.

3
3°C max day temperature
7
7 hours of sunshine per day
6
6 days with some rainfall
-12
-12°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
7
7 mm of monthly rainfall
2
2 (Low) UV index

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Riverton weather in March

Expect daytime maximum temperatures of 9°C in Riverton, Wyoming in March based on long-term weather averages. There are 8 hours of sunshine per day on average, which might fall as snow.

9
9°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
-7
-7°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
12
12 mm of monthly rainfall
4
4 (Moderate) UV index

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Riverton weather in April

Expect daytime maximum temperatures of 15°C in Riverton, Wyoming in April based on long-term weather averages. There are 9 hours of sunshine per day on average.

15
15°C max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
-1
-1°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
26
26 mm of monthly rainfall
6
6 (High) UV index

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Riverton weather in May

Expect daytime maximum temperatures of 21°C in Riverton, Wyoming in May based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 45 mm of rainfall in the month.

21
21°C max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
4
4°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
45
45 mm of monthly rainfall
8
8 (Very High) UV index

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Riverton weather in June

Expect daytime maximum temperatures of 27°C in Riverton, Wyoming in June based on long-term weather averages. There are 11 hours of sunshine per day on average.

27
27°C max day temperature
11
11 hours of sunshine per day
7
7 days with some rainfall
9
9°C min night temperature
15
15 hours of daylight per day
L
Low heat & humidity
34
34 mm of monthly rainfall
9
9 (Very High) UV index

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Riverton weather in July

Expect daytime maximum temperatures of 32°C in Riverton, Wyoming in July based on long-term weather averages. There are 11 hours of sunshine per day on average.

32
32°C max day temperature
11
11 hours of sunshine per day
7
7 days with some rainfall
12
12°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
18
18 mm of monthly rainfall
10
10 (Very High) UV index

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Riverton weather in August

Expect daytime maximum temperatures of 30°C in Riverton, Wyoming in August based on long-term weather averages. There are 10 hours of sunshine per day on average.

30
30°C max day temperature
10
10 hours of sunshine per day
5
5 days with some rainfall
10
10°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
12
12 mm of monthly rainfall
9
9 (Very High) UV index

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Riverton weather in September

Expect daytime maximum temperatures of 23°C in Riverton, Wyoming in September based on long-term weather averages. There are 9 hours of sunshine per day on average.

23
23°C max day temperature
9
9 hours of sunshine per day
6
6 days with some rainfall
4
4°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
20
20 mm of monthly rainfall
6
6 (High) UV index

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Riverton weather in October

Expect daytime maximum temperatures of 16°C in Riverton, Wyoming in October based on long-term weather averages. There are 7 hours of sunshine per day on average.

16
16°C max day temperature
7
7 hours of sunshine per day
6
6 days with some rainfall
-2
-2°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
17
17 mm of monthly rainfall
4
4 (Moderate) UV index

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Riverton weather in November

Expect daytime maximum temperatures of 6°C in Riverton, Wyoming in November based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

6
6°C max day temperature
6
6 hours of sunshine per day
5
5 days with some rainfall
-9
-9°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
12
12 mm of monthly rainfall
2
2 (Low) UV index

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Riverton weather in December

Expect daytime maximum temperatures of -1°C in Riverton, Wyoming in December based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.