Rock Springs weather by month & the best time to visit
United States · small town · semi-arid climate
The best time to visit Rock Springs is July — its sunniest month (Sunshine Score 95/100), with June and August close behind. Rock Springs averages about 3,116 hours of sunshine a year. Daytime highs around 31°C / 88°F and roughly 15 mm of rain in July.
When is the best time to visit Rock Springs?
For sunshine, the best time to visit Rock Springs is July, then June and August. The dullest month is January (0/100, 11 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rock Springs?
Rock Springs is one of the sunniest places on Earth: about 3,116 hours of sunshine a year. 95 Sunshine Score points separate July (95) from January (0), so the month you pick matters. It ranks #73 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 235 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 0° / 32°F | -11° / 12°F | 11 mm | 2 |
| February | 0 | 2° / 36°F | -9° / 16°F | 13 mm | 3 |
| March | 0 | 7° / 45°F | -5° / 23°F | 18 mm | 5 |
| April | 31 | 12° / 54°F | -2° / 28°F | 26 mm | 7 |
| May | 76 | 18° / 64°F | 3° / 37°F | 35 mm | 8 |
| June | 94 | 26° / 79°F | 9° / 48°F | 20 mm | 9 |
| July | 95 | 31° / 88°F | 15° / 59°F | 15 mm | 10 |
| August | 94 | 28° / 82°F | 13° / 55°F | 20 mm | 9 |
| September | 93 | 23° / 73°F | 7° / 45°F | 25 mm | 7 |
| October | 39 | 13° / 55°F | 0° / 32°F | 22 mm | 4 |
| November | 0 | 5° / 41°F | -6° / 21°F | 15 mm | 2 |
| December | 0 | -1° / 30°F | -11° / 12°F | 15 mm | 1 |
Nearest destinations
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Rock Springs: questions and answers
What kind of destination is Rock Springs?
Rock Springs is a small town in United States at 2,055 m elevation with a semi-arid climate.
How many hours of sunshine does Rock Springs get a year?
Rock Springs gets about 3,116 hours of sunshine a year, at its best around July.
When is the best time to visit Rock Springs?
The sunniest time to visit Rock Springs is July, when the Sunshine Score peaks at 95/100 (with June and August close behind). Expect daytime highs around 31°C / 88°F.
What is the least sunny month in Rock Springs?
January is the least sunny month in Rock Springs, scoring 0/100 with about 11 mm of rain.
How strong is the sun in Rock Springs?
The typical midday UV index in Rock Springs peaks around 10 (very high) in July, easing to about 1 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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