Climate guide for Yellowstone, United States

Best Time to Visit
Yellowstone

How to read the score (0–10)
05810
UnfavorableGoodOptimal

About Yellowstone

Yellowstone is America's first national park—Old Faithful geysers, Grand Prismatic pools, and bison-filled Lamar Valley. In United States, late spring through early autumn usually delivers the most reliable conditions for nature travel — then use monthly climate scores to fine-tune around crowds, storms, or snow depth.

Things to do in Yellowstone

Yellowstone, United States. Live activities and tours from GetYourGuide, matched to this destination.

Frequently asked

When is the best time to visit Yellowstone, United States?
The best months to visit Yellowstone are July, June, May, August, April, September. July is the single peak month with a climate score of 9.6/10 based on temperature, rainfall, humidity, daylight and historical sunny days.
What is the weather like in Yellowstone year-round?
Yellowstone has a nature and wildlife climate profile. Average monthly temperatures range from 3°C in January to 22°C in July, with climate scores between 5.0 and 9.6 out of 10.
Which months should I avoid in Yellowstone?
The lowest-scoring months in Yellowstone are December (5.0/10), January (5.2/10), November (5.8/10). These months typically combine less comfortable temperatures, higher rainfall or fewer sunny days.
When is the rainy season in Yellowstone?
November is the wettest month in Yellowstone, averaging about 70 mm of rainfall. February is the driest, at roughly 50 mm.
Which is the sunniest month in Yellowstone?
July sees the most sun in Yellowstone, with about 23 sunny days on average - ideal for outdoor plans.
Is Yellowstone good for nature and wildlife travel?
Yellowstone is profiled as a nature and wildlife destination in Attraction, United States. Its highest-scoring window (July, June, May, August, April, September) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Yellowstone calculated?
Each month is rated 0-10 using ERA5 climate normals for Yellowstone: temperature comfort, precipitation, humidity, daylight hours, and historical sunny days - weighted for a nature and wildlife trip.

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