When to visit Yellowstone?
The decision rests on several criteria. Climate score, tourist crowds and feasible activities.
What you grasp in 5 seconds
Yellowstone offers 4 comfortable months, with 2 months to avoid (February, December). The gap is sharp: 8.3 in July vs 0.9 in February.
What to check next
Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.
Next action
Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.
How we calculate the score
The score combines 4 weighted criteria using 10 years of real climate data (ERA5).
Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →
Compare all 12 months
Month-by-month details: temperature, rain, sunshine, score and verdict.
| Month | T° min | T° max | Rain % | mm/day | Sun | Score | Verdict |
|---|---|---|---|---|---|---|---|
| 🌥️ January → | 10°F | 21°F | 25% | 1.6mm | 4.3h | 4.0/10 | Decent period |
| 🌧️ February → | 10°F | 21°F | 34% | 2.9mm | 4.1h | 0.9/10 | Tough conditions |
| 🌥️ March → | 16°F | 30°F | 30% | 2.1mm | 5.7h | 4.0/10 | Decent period |
| 🌥️ April → | 21°F | 37°F | 30% | 2.3mm | 6.7h | 4.0/10 | Decent period |
| 🌥️ May → | 28°F | 46°F | 26% | 1.8mm | 7.7h | 4.2/10 | Decent period |
| ⛅ June → | 37°F | 59°F | 22% | 1.7mm | 9.0h | 7.2/10 | Best period |
| ☀️ July → | 46°F | 72°F | 18% | 0.9mm | 9.1h | 8.3/10 | Best period |
| ☀️ August → | 48°F | 70°F | 20% | 1.4mm | 8.0h | 8.0/10 | Best period |
| ⛅ September → | 41°F | 61°F | 23% | 2.0mm | 7.1h | 7.3/10 | Best period |
| 🌥️ October → | 30°F | 43°F | 27% | 2.2mm | 5.9h | 4.0/10 | Decent period |
| 🌥️ November → | 19°F | 30°F | 26% | 1.8mm | 4.7h | 4.0/10 | Decent period |
| 🌧️ December → | 10°F | 23°F | 29% | 2.4mm | 3.5h | 1.0/10 | Tough conditions |
Yellowstone week by week: your odds of avoiding rain
For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.
Safest week: Aug 27 to Sep 2, mostly dry in 10 years out of 10 (0.7 rainy day(s) on average).
Most exposed: Jan 29 to Feb 4, mostly dry in 4 years out of 10 (2.6 rainy days on average).
| Jan | Jan 16/1019°F | Jan 85/1020°F | Jan 158/1020°F | Jan 229/1020°F | Jan 294/1022°F |
|---|---|---|---|---|---|
| Feb | Feb 55/1021°F | Feb 126/1022°F | Feb 197/1020°F | Feb 266/1025°F | |
| Mar | Mar 57/1027°F | Mar 126/1031°F | Mar 195/1032°F | Mar 266/1032°F | |
| Apr | Apr 26/1035°F | Apr 98/1034°F | Apr 166/1037°F | Apr 235/1040°F | Apr 307/1044°F |
| May | May 79/1044°F | May 145/1046°F | May 215/1046°F | May 289/1053°F | |
| Jun | Jun 48/1057°F | Jun 115/1057°F | Jun 187/1060°F | Jun 258/1064°F | |
| Jul | Jul 28/1068°F | Jul 910/1072°F | Jul 169/1073°F | Jul 239/1072°F | Jul 307/1072°F |
| Aug | Aug 69/1069°F | Aug 139/1070°F | Aug 207/1068°F | Aug 2710/1067°F | |
| Sep | Sep 39/1066°F | Sep 106/1060°F | Sep 175/1055°F | Sep 249/1056°F | |
| Oct | Oct 19/1049°F | Oct 84/1045°F | Oct 157/1045°F | Oct 225/1038°F | Oct 297/1036°F |
| Nov | Nov 56/1034°F | Nov 127/1033°F | Nov 199/1029°F | Nov 267/1024°F | |
| Dec | Dec 37/1024°F | Dec 107/1023°F | Dec 177/1022°F | Dec 245/1019°F |
A specific date? The app computes the same figure day by day.
Annual temperatures — Yellowstone
Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.
For your trip
A few angles depending on what kind of trip you are planning.
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
🎟️ Activities & tours · Yellowstone
GetYourGuide selection · free cancellation
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · USA
🌡️ Climate
🏛️ City break
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Where is Yellowstone ?
Global position + regional geographic context.