John Day Fossil Beds National Monument in August
August at John Day Fossil Beds National Monument averages a daytime high near 83°F and an overnight low around 51°F, with about 0.5" of precipitation. Visitation runs about 1.9× the park's average month, which makes August a very busy month here.
- Average low
- 51°F
- Average high
- 83°F
Range across the year: 25°F to 83°F
- Precipitation
- 0.5 in
- Daylight
- 13.9 hours
Roughly 16% of the park's yearly visitors come in August: about 27,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes August the 2nd-busiest of the park's twelve months, sitting between the July peak (2×) and the January low (0.2×).
On our Best Time to Visit score August rates 56/100 ("Fair"). Our recommended month is September: the lightest crowds of the park's good-weather months.
The daily average of about 67°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 12.2 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 47% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.9 hours of daylight in August to explore — between the 8.6-hour midwinter low and the 15.4-hour summer high.
Park-wide, 2025 drew 131,119 recreation visits, up 7% from 122,529 in 2024.
Across the past decade overall visitation has eased about 28%, so August may feel a touch quieter than it once did.
How August compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| July | 83°F / 51°F | 2.0× Very busy | 57 Fair |
| August | 83°F / 51°F | 1.9× Very busy | 56 Fair |
| September | 75°F / 45°F | 1.4× Busy | 56 Fair |
All twelve months at John Day Fossil Beds, with the best time to visit.
Things to do at John Day Fossil Beds in August
The National Park Service tags 19 John Day Fossil Beds activities for summer. Here are 8 of them. Each links to the park's own page for it.
- Blue Basin Overlook Trail · 1-3 hours
- Clarno Arch Trail · 15-45 minutes
- Fossil Gallery · 10-60 minutes
- John Day Fossil Beds Junior Ranger Program · 20-120 minutes
- Leaf Hill Trail · 10-30 minutes
- Painted Cove Trail · 10-30 minutes
- River Trail · 10-35 minutes
- Story in Stone Trail · 15-30 minutes
Frequently Asked Questions
August averages a daytime high near 83°F and an overnight low around 51°F at John Day Fossil Beds National Monument, with about 0.5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 12.2 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very busy at John Day Fossil Beds National Monument (about 1.9× the average month). Our best-time score rates it "Fair" at 56/100. Our recommended month is September.
The busiest month is July and the quietest is January. August sits at about 1.9× the park's average, or 16% of annual visitation.
A typical August sees about 27,000 recreation visits at John Day Fossil Beds National Monument, based on National Park Service monthly counts from 1979–2025.
Where to stay near John Day Fossil Beds in August
Booking a August trip to John Day Fossil Beds National Monument? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near John Day Fossil Beds
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See the full ranking of the best national parks to visit in August.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.