‹ Yellowstone weather by month
Typical May weather
Yellowstone
Wyoming · May
60° days
35° nights
about 6 rainy days · 15 hours of daylight
What to pack
- Warm coat
- Sunscreen
What May feels like
May is the best wildlife month by a distance: everything is down low because the high country has not let go yet, and the slopes near Roosevelt are the reliable place to look for bears. Some roads are still gated and the weather can turn to snow with very little notice, so keep the itinerary loose.
Expect about 6 days with real rain — enough to notice, not enough to plan around. about 10 nights dip below freezing.
The numbers
| Typical high | 60° |
|---|---|
| Typical low | 35° |
| Days with real rain | 6 |
| Total rain | 1.8 in |
| Snowfall | 1.7 in |
| Sunrise / sunset (mid-month) | 5:53 am / 8:45 pm |