Rock Springs (WY) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rock Springs.
Climate overview of Rock Springs
Rock Springs, Wyoming, United States of America, sees big temperature differences between seasons, with July peaking at 30°C (86°F) and December dropping to 0°C (32°F).
With just 232 mm (9.1 in) of annual rain/snowfall, the city has a dry, desert-like climate.
Rock Springs Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rock Springs - and find the best time to visit.
Monthly Temperature in Rock Springs
Visitors to Rock Springs can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 30°C (86°F) in July. In December, the coolest month of the year, temperatures drop to a very cold 0°C (32°F).
At night, temperatures range from around 13°C (55°F) in July to -11°C (12°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rock Springs
Rock Springs experiences desert-like conditions in terms of precipitation with almost no rain/snowfall, generally receiving 232 mm (9.1 in) annually. Rock Springs can be quite wet during May, receiving approximately 44 mm (1.7 in) of precipitation over 11 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 8.2 mm (0.3 in) of precipitation spread across 5 snowy days. For more details, please visit our Rock Springs 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 Rock Springs
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, August and September
- Warmest weather: July
- Seasonal pattern: Very little rainfall for most of the year, with warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -11°C (12°F).
Frequently asked questions about the climate in Rock Springs
What is the best time to visit Rock Springs?
June, August and September typically offer the most optimal weather in Rock Springs. In contrast, January, February and December tend to have less optimal conditions. Rock Springs has very little rainfall for most of the year, with warm summers and very cold winters.
What temperatures can I expect in Rock Springs?
Daytime highs range from 0°C (32°F) in December to 30°C (86°F) in July. Nighttime lows range from -11°C (12°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Rock Springs get?
Annual rainfall is around 232 mm (9.1 in). May is the wettest month with 44 mm (1.7 in), while January is the driest with 8.2 mm (0.3 in).
Rock Springs 3-Day Forecast
Rock Springs (WY) 3-Day Forecast
Rock Springs on the map
Rock Springs is highlighted - select any city to see its climate.
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