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Typical December weather
Yellowstone
Wyoming · December
30° days
12° nights
about 10 snowy days · 9 hours of daylight
What to pack
- Warm coat
- Gloves & beanie
- Snow boots
What December feels like
Oversnow travel starts around mid-December and it is a completely different park — steam freezing into rime on the lodgepoles, bison pushing through drifts with their heads. Everything has to be booked and guided, so this is not a month for improvising; the payoff is Old Faithful with a couple dozen people watching instead of a couple thousand.
Winter is doing its thing: 12.6 in of snow in a typical December, with fresh snow on about 10 days. Nearly every night dips below freezing.
The numbers
| Typical high | 30° |
|---|---|
| Typical low | 12° |
| Days with snow | 10 |
| Rain and melted snow | 0.9 in |
| Snowfall | 12.6 in |
| Sunrise / sunset (mid-month) | 7:54 am / 4:41 pm |