Whitman Mission National Historic Site in May
May at Whitman Mission National Historic Site averages a daytime high near 73°F and an overnight low around 44°F, with about 1.8" of precipitation. Visitation runs about 1.7× the park's average month, which makes May a very busy month here.
- Average low
- 44°F
- Average high
- 73°F
Range across the year: 27°F to 90°F
- Precipitation
- 1.8 in
- Daylight
- 14.8 hours
Roughly 14% of the park's yearly visitors come in May: roughly 7,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
It is the single busiest month of the year at Whitman Mission; December, the quietest, runs only about 0.3× the average — a 5-to-1 swing between high and low season.
On our Best Time to Visit score May rates 44/100 ("Poor"). Our recommended month is September: the lightest crowds of the park's good-weather months.
The daily average of about 58°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 0.2 miles from the park.
Because June, July and August together draw about 33% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 14.8 hours of daylight in May to explore — between the 8.5-hour midwinter low and the 15.5-hour summer high.
Park-wide, 2025 drew 54,089 recreation visits, down 11.8% from 61,331 in 2024.
Across the past decade overall visitation has risen about 12.1%, so a May visit is likely to feel busier than it did a few years ago.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 65°F / 37°F | 1.1× Average | 50 Fair |
| May | 73°F / 44°F | 1.7× Very busy | 44 Poor |
| June | 80°F / 49°F | 1.6× Busy | 58 Fair |
All twelve months at Whitman Mission, with the best time to visit.
Things to do at Whitman Mission in May
The National Park Service tags 4 Whitman Mission activities for spring. Each links to the park's own page for it.
- Visit the Whitman Mission Museum
- Walk the Trails and Tour the Mission Grounds · 15-60 minutes
- Watch A Prophecy Fulfilled · 25 minutes
- Whitman Mission NHS Audio Tour · 30-90 minutes
Frequently Asked Questions
May averages a daytime high near 73°F and an overnight low around 44°F at Whitman Mission National Historic Site, with about 1.8 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.2 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is very busy at Whitman Mission National Historic Site (about 1.7× the average month). Our best-time score rates it "Poor" at 44/100. Our recommended month is September.
The busiest month is May and the quietest is December. May sits at about 1.7× the park's average, or 14% of annual visitation.
A typical May sees about 7,000 recreation visits at Whitman Mission National Historic Site, based on National Park Service monthly counts from 1979–2025.
Where to stay near Whitman Mission in May
Booking a May trip to Whitman Mission National Historic Site? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Whitman Mission
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Visiting Whitman Mission in May?
Get crowd forecasts and lodging deals for Whitman Mission by email. No spam, unsubscribe anytime.
See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.