- Best time to visit Yellowstone: May, June, August and September. The weather is at its most comfortable then, and crowds are lighter than at the peak.
- Busiest month: July, with about 972,400 visits in a typical recent year. That is 3.2 times as many as October.
- Quietest month: November (20,621 visits), when weather or closures keep most people away.
- Cold: average highs stay below 40°F in January, February, November and December.
- Snow: January to April, November and December average 6 inches or more of snow at the station, and high roads and trails often close.
Bar height: visitors that month, compared with the busiest month. Temperatures: average daily high and low (°F); rain and snow: monthly averages. Best marks the months we suggest.
Month by month
| Month | Crowds | Visits (typical) | High / low (°F) | Precipitation | Snow |
|---|---|---|---|---|---|
| January | Very quiet | 44,224 | 31° / 12° | 0.9 in | 12 in |
| February | Very quiet | 46,508 | 34° / 12° | 0.8 in | 12 in |
| March | Very quiet | 33,073 | 42° / 19° | 1.1 in | 11 in |
| April | Very quiet | 75,156 | 50° / 26° | 1.4 in | 8 in |
| May ★ | Moderate | 523,065 | 60° / 35° | 1.8 in | 2 in |
| June ★ | Busiest | 881,238 | 70° / 42° | 1.9 in | 0 in |
| July | Busiest | 972,400 | 81° / 48° | 1.3 in | 0 in |
| August ★ | Busiest | 857,324 | 80° / 46° | 1.1 in | 0 in |
| September ★ | Busiest | 839,018 | 69° / 39° | 1.2 in | 1 in |
| October | Quiet | 306,543 | 54° / 29° | 1.3 in | 5 in |
| November | Very quiet | 20,621 | 39° / 19° | 1.1 in | 10 in |
| December | Very quiet | 32,658 | 30° / 12° | 0.9 in | 13 in |
Weather figures are NOAA 1991 to 2020 climate normals for the Yellowstone Park Mammoth station (6,195 feet above sea level), 0 miles from Albright Visitor Center. Visitor numbers are the median of 2022 to 2025 monthly recreation visits from the National Park Service.
By season
- Spring (March to May): 14% of the year’s visits; average highs 42° to 60°F.
- Summer (June to August): 59% of the year’s visits; average highs 70° to 81°F.
- Fall (September to November): 25% of the year’s visits; average highs 39° to 69°F.
- Winter (December to February): 3% of the year’s visits; average highs 30° to 34°F.
Weekends and holidays
Even in a quiet month, holiday weekends fill parking lots and campgrounds. The 2027 federal holidays to plan around:
- Martin Luther King Jr. Day: Monday, January 18
- Presidents Day: Monday, February 15
- Memorial Day: Monday, May 31
- Juneteenth: Saturday, June 19
- Independence Day: Sunday, July 4 (observed Monday, July 5)
- Labor Day: Monday, September 6
- Columbus Day and Indigenous Peoples Day: Monday, October 11
- Veterans Day: Thursday, November 11
- Thanksgiving: Thursday, November 25
Entrance is free for U.S. residents on the park service’s fee-free days. The last one in 2026 is Veterans Day, November 11; the 2027 dates had not been announced when we checked. Free days are often busier. See the crowd calendar for all 64 parks.
Weather, in the park service’s words
Yellowstone's weather can vary quite a bit, even in a single day. In the summer, daytime highs can exceed 70°F (21°C), only to drop 20 or more degrees when a thunderstorm rolls through. It can snow during any month of the year, and winter lows frequently drop below 0°F (-18°C), especially at night. Bring a range of clothing options, including a warm jacket and rain gear, even in the summer.
From the National Park Service (public domain).
Today at Yellowstone
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Alerts: National Park Service, checked hourly. Forecast: National Weather Service, for Albright Visitor Center. Always confirm on the official park site before you set out.
Sources
- National Park Service visitor use statistics (IRMA): monthly recreation visits, 2022 to 2025
- NOAA NCEI U.S. Climate Normals, 1991 to 2020 (monthly)
- National Park Service Data API: weather overview (public domain)
Last checked 1 November 2026.