Herbert Hoover National Historic Site in May
May at Herbert Hoover National Historic Site averages a daytime high near 72°F and an overnight low around 49°F, with about 5.1" of precipitation. Visitation runs about 1.2× the park's average month, which makes May a busy month here.
- Average low
- 49°F
- Average high
- 72°F
Range across the year: 12°F to 84°F
- Precipitation
- 5.1 in
- Daylight
- 14.4 hours
Roughly 10% of the park's yearly visitors come in May: about 11,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 4th-busiest of the park's twelve months, sitting between the August peak (1.8×) and the February low (0.6×).
On our Best Time to Visit score May rates 61/100 ("Good"). Our recommended month is October: the lightest crowds of the park's good-weather months.
The daily average of about 61°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 8.9 miles from the park.
Because June, July and August together draw about 37% 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 14.4 hours of daylight in May to explore — between the 9-hour midwinter low and the 15-hour summer high.
Park-wide, 2025 drew 106,672 recreation visits, down 27.9% from 148,031 in 2024.
Across the past decade overall visitation has eased about 12.8%, so May may feel a touch quieter than it once did.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 62°F / 37°F | 0.8× Quiet | 60 Good |
| May | 72°F / 49°F | 1.2× Busy | 61 Good |
| June | 81°F / 59°F | 1.3× Busy | 65 Good |
All twelve months at Herbert Hoover, with the best time to visit.
Things to do at Herbert Hoover in May
The National Park Service tags 7 Herbert Hoover activities for spring. Each links to the park's own page for it.
- Be a Junior Ranger at Herbert Hoover National Historic Site
- Get Started at the Visitor Center · 30-60 minutes
- Picnic Where the President Picnicked · reservation required
- Take a Self-guided Tour · 30-60 minutes
- Tour the Presidential Library & Museum · 1-3 hours
- Visit Downtown West Branch · 30-60 minutes
- Walk the Nature Trails · 30-60 minutes
Frequently Asked Questions
May averages a daytime high near 72°F and an overnight low around 49°F at Herbert Hoover National Historic Site, with about 5.1 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 8.9 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is busy at Herbert Hoover National Historic Site (about 1.2× the average month). Our best-time score rates it "Good" at 61/100. Our recommended month is October.
The busiest month is August and the quietest is February. May sits at about 1.2× the park's average, or 10% of annual visitation.
A typical May sees about 11,000 recreation visits at Herbert Hoover National Historic Site, based on National Park Service monthly counts from 1979–2025.
Where to stay near Herbert Hoover in May
Booking a May trip to Herbert Hoover National Historic Site? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Herbert Hoover
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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.