Visitation · National Historic Site

Whitman Mission National Historic Site visitation by month and year

May is the busiest month at Whitman Mission, when the average temperature nearby is 58 degrees. December is the quietest, and the average temperature then is 34 degrees. May runs about 4.2 times the visits of December. The warmest month is July, a little off the peak. Annual visits rose 11.6 percent from 48,481 in 2019 to 54,089 in 2025.

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Visits by month, with temperature and precipitation

Bars are the average recreation visits in each month over 2021 to 2025. The line is the average temperature at Whitman Mission, under a mile from the park's reference point at 632 feet, station USC00459200 in the NOAA 1991 to 2020 climate normals. The lower panel is monthly rain from the same station, which publishes no snowfall normal.

Annual visits, 1979 to 2025

Recreation visits per calendar year. A year with a missing month is left blank rather than estimated.

The last ten years

Year	Recreation visits	Change on prior year
2025	54,089	-11.8%
2024	61,331	+29.9%
2023	47,232	-9.2%
2022	52,000	+18.4%
2021	43,921	+25.7%
2020	34,933	-27.9%
2019	48,481	-1.6%
2018	49,274	+3.2%
2017	47,757	-4.8%
2016	50,148	+26.9%

Visitation at other parks

Olympic National Park Mount Rainier National Park San Juan National Historic Site Fort Point National Historic Site

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, precipitation and snowfall normals are the 1991 to 2020 monthly averages published by NOAA NCEI for station USC00459200, 632 feet above sea level. Data refreshed October 14, 2026.