Rocky Mountain National Park in January
In January, Rocky Mountain National Park averages a high of 30°F and a low of 5°F, with 1.6 inches of precipitation (rain plus melted snow) and 30.6 inches of snowfall. About 108,000 people visit, the 11th busiest of 12 (quiet). Days are 9 hours 35 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 30° / 5°F
- Precipitation
- 1.6in
- Snow
- 30.6in
- Daylight
- 9h 35m
- Visitors
- 108,000
- Crowds
- Quiet
Best months for weather and crowds instead: June (very busy).
Higher or lower in the park, expect a different picture: Waterdale, CO at 5,230 ft averages a January high of 44°F and a low of 15°F.
Weather 1991–2020 averages at Grand Lake 1 NW, CO, 9.2 miles from the park's center, 8,720 ft. Second station lower down: Waterdale, CO, 5,230 ft, 26.4 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in January
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Black Canyon of the Gunnison National Park | 37° / 13° | Quiet | Cold |
| Great Sand Dunes National Park | 33° / 11° | Quiet | Cold |
| Arches National Park | 42° / 22° | Quiet | Cool |
| Wind Cave National Park | 40° / 15° | Quiet | Cold |
| Mesa Verde National Park | 40° / 20° | Quiet | Cold |
Closures, reservations and alerts: Rocky Mountain National Park on nps.gov
All twelve months at Rocky Mountain · National parks to visit in January