Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Riverton (WY) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Riverton.
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Climate overview of Riverton
Temperatures in Riverton, Wyoming, United States of America, vary greatly throughout the year. July is the hottest month at 32°C (90°F), while December is the coldest at -1°C (30°F).
The city has an arid climate, receiving only 224 mm (8.8 in) of rain/snowfall per year.
Riverton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Riverton - and find the best time to visit.
Monthly Temperature in Riverton
The climate in Riverton is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a very cold -1°C (30°F) in December.
Nighttime temperatures range from 13°C (55°F) in July to -15°C (5°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Riverton
Riverton is known for its low rain/snowfall, with yearly precipitation amounts around 224 mm (8.8 in). The seasons in Riverton bring significant changes in precipitation. The wettest month, May, receives moderate rainfall, with an average of 60 mm (2.4 in) of precipitation. This rainfall is distributed across 10 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 6 mm (0.2 in) over 3 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Riverton Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Riverton
Conditions in Riverton are generally most comfortable in May, June and September. They are typically least comfortable in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very cold
Feb
cold
Mar
good
Apr
very good
May
excellent
Jun
excellent
Jul
very good
Aug
very good
Sep
excellent
Oct
very good
Nov
mixed
Dec
very cold
- Best overall: May, June and September
- Warmest weather: July
- Seasonal pattern: Very little rainfall for most of the year, with very warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -15°C (5°F).
Frequently asked questions about the climate in Riverton
What is the best time to visit Riverton?
May, June and September typically offer the most optimal weather in Riverton. In contrast, January, February and December tend to have less optimal conditions. Riverton has very little rainfall for most of the year, with very warm summers and very cold winters.
What temperatures can I expect in Riverton?
Daytime highs range from -1°C (30°F) in December to 32°C (90°F) in July. Nighttime lows range from -15°C (5°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Riverton get?
Annual rainfall is around 224 mm (8.8 in). May is the wettest month with 60 mm (2.4 in), while January is the driest with 6 mm (0.2 in).
Riverton 3-Day Forecast
Riverton on the map
Riverton is highlighted - select any city to see its climate.
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