Black Canyon of the Gunnison National Park in September
In September, Black Canyon of the Gunnison National Park averages a high of 72°F and a low of 44°F, with 2.1 inches of precipitation (rain plus melted snow). About 49,000 people visit, the 2nd busiest of 12 (very busy). Days are 12 hours 23 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 72° / 44°F
- Precipitation
- 2.1in
- Snow
- –in
- Daylight
- 12h 23m
- Visitors
- 49,000
- Crowds
- Very busy
Best months for weather and crowds instead: May (busy) and June (very busy).
Higher or lower in the park, expect a different picture: Montrose #2, CO at 5,789 ft averages a September high of 79°F and a low of 49°F.
Weather 1991–2020 averages at Black Canyon Of The Gunnison, CO, 3.5 miles from the park's center, 8,151 ft. Second station lower down: Montrose #2, CO, 5,789 ft, 9.8 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Mesa Verde National Park | 76° / 50° | Busy | Mild, wet |
| Arches National Park | 87° / 58° | Very busy | Hot |
| Canyonlands National Park | 84° / 51° | Very busy | Hot |
| Great Sand Dunes National Park | 72° / 44° | Moderate | Mild, wet |
| Rocky Mountain National Park | 68° / 32° | Busy | Mild, wet |
Closures, reservations and alerts: Black Canyon of the Gunnison National Park on nps.gov
All twelve months at Black Canyon of the Gunnison · National parks to visit in September