Harriet Tubman Underground Railroad National Historical Park in September
September at Harriet Tubman Underground Railroad National Historical Park averages a daytime high near 82°F and an overnight low around 61°F. Visitation runs about 1× the park's average month, which makes September an average month here.
- Average low
- 61°F
- Average high
- 82°F
Range across the year: 28°F to 90°F
- Daylight
- 12.2 hours
Roughly 8% of the park's yearly visitors come in September: roughly 1,400 recreation visits in a typical year, based on National Park Service monthly counts from 2023 to 2025.
That makes September the 7th-busiest of the park's twelve months, sitting between the July peak (1.6×) and the January low (0.4×).
On our Best Time to Visit score September rates 69/100 ("Good"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 71°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 17.3 miles from the park.
Because June, July and August together draw about 37% of annual visitors, choosing September instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 12.2 hours of daylight in September to explore — between the 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 15,348 recreation visits, down 14.5% from 17,946 in 2024.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 88°F / 67°F | 1.3× Busy | 45 Fair |
| September | 82°F / 61°F | 1.0× Average | 69 Good |
| October | 72°F / 49°F | 0.9× Average | 63 Good |
All twelve months at Harriet Tubman Underground Railroad, with the best time to visit.
Frequently Asked Questions
September averages a daytime high near 82°F and an overnight low around 61°F at Harriet Tubman Underground Railroad National Historical Park. These are 1991–2020 NOAA climate normals from the nearest station, about 17.3 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is average at Harriet Tubman Underground Railroad National Historical Park (about 1.0× the average month). Our best-time score rates it "Good" at 69/100. Our recommended month is October.
The busiest month is July and the quietest is January. September sits at about 1.0× the park's average, or 8% of annual visitation.
A typical September sees about 1,000 recreation visits at Harriet Tubman Underground Railroad National Historical Park, based on National Park Service monthly counts from 2023–2025.
Where to stay near Harriet Tubman Underground Railroad in September
Booking a September trip to Harriet Tubman Underground Railroad National Historical Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Harriet Tubman Underground Railroad
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See the full ranking of the best national parks to visit in September.
Source: National Park Service Visitor Use Statistics (2023–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.