Weather by month
Yellowstone
Wyoming
A high plateau with a real winter and a short spectacular summer, where the road system shapes your trip more than the thermometer does.
The best time to come
June and September are the two to aim for — June for waterfalls, wildflowers, and bison calves, September for the elk rut and roads you can actually drive. July and August are warmer and easier but the interior is genuinely packed, and from November into April the roads are shut to cars entirely.
The year at a glance
| Month | Highs / lows | Temperature range | Wet days | Snow |
|---|---|---|---|---|
| January | 31° / 12° | 9 | 11.5 in | |
| February | 34° / 12° | 9 | 11.5 in | |
| March | 42° / 19° | 7 | 10.9 in | |
| April | 50° / 26° | 6 | 7.8 in | |
| May | 60° / 35° | 6 | 1.7 in | |
| June ● | 70° / 42° | 6 | — | |
| July | 81° / 48° | 4 | — | |
| August | 80° / 47° | 3 | — | |
| September ● | 69° / 39° | 4 | 0.6 in | |
| October | 54° / 29° | 3 | 4.7 in | |
| November | 39° / 19° | 8 | 9.9 in | |
| December | 30° / 12° | 10 | 12.6 in |
Yellowstone facts
- Sits at about 6,200 ft above sea level.
- 14.8 in of rain and melted snow in a typical year, with June the wettest month.
- 71.5 in of snow in a typical winter.
- July runs hottest (81° afternoons); January nights are the coldest (12°).