Thomas Jefferson Memorial in September
In September, Thomas Jefferson Memorial averages a high of 81°F and a low of 64°F, with 3.9 inches of precipitation (rain plus melted snow). About 150,000 people visit, the 8th busiest of 12 (quiet). Days are 12 hours 24 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 81° / 64°F
- Precipitation
- 3.9in
- Snow
- 0in
- Daylight
- 12h 24m
- Visitors
- 150,000
- Crowds
- Quiet
Best months for weather and crowds instead: April (very busy) and November (quiet).
Weather 1991–2020 averages at Washington Reagan AP, VA, 2.3 miles from the park's center, 10 ft. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in September
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Franklin Delano Roosevelt Memorial | 81° / 64° | Moderate | Hot |
| Martin Luther King, Jr., Memorial | 81° / 64° | Moderate | Hot |
| World War II Memorial | 81° / 64° | Busy | Hot |
| Korean War Veterans Memorial | 81° / 64° | Busy | Hot |
| Vietnam Veterans Memorial | 81° / 64° | Moderate | Hot |
Closures, reservations and alerts: Thomas Jefferson Memorial on nps.gov
All twelve months at Thomas Jefferson Memorial · National parks to visit in September