Rock Creek Park in September
In September, Rock Creek Park averages a high of 79°F and a low of 59°F, with 4.5 inches of precipitation (rain plus melted snow). About 169,000 people visit, the 4th busiest of 12 (busy). Days are 12 hours 24 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 79° / 59°F
- Precipitation
- 4.5in
- Snow
- 0in
- Daylight
- 12h 24m
- Visitors
- 169,000
- Crowds
- Busy
Best months for weather and crowds instead: April (busy) and November (busy).
Weather 1991–2020 averages at Dalecarlia Rsvr, MD, 4 miles from the park's center, 150 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| World War I Memorial | 81° / 64° | Busy | Hot |
| Vietnam Veterans Memorial | 81° / 64° | Moderate | Hot |
| Lincoln Memorial | 81° / 64° | Busy | Hot |
| World War II Memorial | 81° / 64° | Busy | Hot |
| Korean War Veterans Memorial | 81° / 64° | Busy | Hot |
Closures, reservations and alerts: Rock Creek Park on nps.gov
All twelve months at Rock Creek Park · National parks to visit in September