Great Sand Dunes National Park in December
In December, Great Sand Dunes National Park averages a high of 34°F and a low of 12°F, with 0.5 inches of precipitation (rain plus melted snow) and 7.0 inches of snowfall. About 8,400 people visit, the 10th busiest of 12 (quiet). Days are 9 hours 34 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 34° / 12°F
- Precipitation
- 0.5in
- Snow
- 7.0in
- Daylight
- 9h 34m
- Visitors
- 8,400
- Crowds
- Quiet
Best months for weather and crowds instead: June (very busy) and October (moderate).
Weather 1991–2020 averages at Great Sand Dunes NP & Preserve, CO, 6 miles from the park's center, 8,183 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in December
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Black Canyon of the Gunnison National Park | 36° / 13° | Quiet | Cold |
| Mesa Verde National Park | 40° / 20° | Quiet | Cold |
| Rocky Mountain National Park | 30° / 5° | Quiet | Cold |
| Arches National Park | 42° / 24° | Quiet | Cool |
| Canyonlands National Park | 42° / 18° | Quiet | Cool |
Closures, reservations and alerts: Great Sand Dunes National Park on nps.gov
All twelve months at Great Sand Dunes · National parks to visit in December