Visitation · National Historical Park

Harriet Tubman Underground Railroad National Historical Park visitation by month and year

July is the busiest month at Harriet Tubman Underground Railroad, when the average temperature nearby is 79 degrees. January is the quietest, and the average temperature then is 38 degrees. July runs about 6.2 times the visits of January. The crowd arrives with the warm weather and leaves with it. The park recorded 15,348 recreation visits in 2025. A full 2019 count is not available, so no change figure is given.

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Visits by month, with average temperature

Visits by month with average temperature, Harriet Tubman Underground Railroad06001.2k1.8k2.4kJanuary: 360 visits on average, 37.7°FJanFebruary: 601 visits on average, 39.3°FFebMarch: 984 visits on average, 46.9°FMarApril: 1,080 visits on average, 56.7°FAprMay: 1,196 visits on average, 65.8°FMayJune: 2,118 visits on average, 74.3°FJunJuly: 2,215 visits on average, 79.4°FJulAugust: 1,987 visits on average, 77.4°FAugSeptember: 1,418 visits on average, 71.2°FSepOctober: 1,293 visits on average, 60.1°FOctNovember: 1,036 visits on average, 49.6°FNovDecember: 624 visits on average, 41.3°FDecJanuary: 37.7°F averageFebruary: 39.3°F averageMarch: 46.9°F averageApril: 56.7°F averageMay: 65.8°F averageJune: 74.3°F averageJuly: 79.4°F averageAugust: 77.4°F averageSeptember: 71.2°F averageOctober: 60.1°F averageNovember: 49.6°F averageDecember: 41.3°F average30°F40°F50°F60°F70°F80°FVisits
Bars are the average recreation visits in each month over 2023 to 2025. The line is the average temperature at Vienna, 17 miles from the park's reference point at 10 feet, station USC00189140 in the NOAA 1991 to 2020 climate normals.

Annual visits, 2023 to 2025

Annual recreation visits, Harriet Tubman Underground Railroad05k10k15k198019902000201020202023: 11,4462024: 17,9462025: 15,3482025: 15k
Recreation visits per calendar year. A year with a missing month is left blank rather than estimated.

The last ten years

YearRecreation visitsChange on prior year
202515,348-14.5%
202417,946+56.8%
202311,446
2022month missing
2021month missing
2020month missing
2019month missing
2018month missing
2017month missing
2016month missing

Visitation at other parks

George Washington Memorial ParkwayAppalachian National Scenic TrailSan Francisco Maritime National Historical ParkBoston National Historical Park

Source: NPS Visitor Use Statistics, monthly recreation visits, as compiled for Publicopia Labs. A year is shown only when all twelve months were reported. Temperature normals are the 1991 to 2020 monthly averages published by NOAA NCEI for station USC00189140, 10 feet above sea level. Data refreshed October 14, 2026.