Thaddeus Kosciuszko National Memorial in August
August at Thaddeus Kosciuszko National Memorial averages a daytime high near 87°F and an overnight low around 70°F, with about 5" of precipitation. Visitation runs about 1.7× the park's average month, which makes August a very busy month here.
- Average low
- 70°F
- Average high
- 87°F
Range across the year: 28°F to 89°F
- Precipitation
- 5.0 in
- Daylight
- 13.6 hours
Roughly 14% of the park's yearly visitors come in August: about 700 recreation visits in a typical year, based on National Park Service monthly counts from 1981 to 2025.
That makes August the 2nd-busiest of the park's twelve months, sitting between the July peak (1.8×) and the January low (0.4×).
On our Best Time to Visit score August rates 35/100 ("Poor"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 78°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 1.7 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 39% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.6 hours of daylight in August to explore — between the 9.2-hour midwinter low and the 14.8-hour summer high.
Park-wide, 2013 drew 1,682 recreation visits, down 17.8% from 2,045 in 2012.
Across the past decade overall visitation has eased about 49%, 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 | 89°F / 71°F | 1.8× Very busy | 27 Poor |
| August | 87°F / 70°F | 1.7× Very busy | 35 Poor |
| September | 80°F / 63°F | 1.2× Busy | 58 Fair |
All twelve months at Thaddeus Kosciuszko, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 87°F and an overnight low around 70°F at Thaddeus Kosciuszko National Memorial, with about 5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 1.7 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very busy at Thaddeus Kosciuszko National Memorial (about 1.7× the average month). Our best-time score rates it "Poor" at 35/100. Our recommended month is October.
The busiest month is July and the quietest is January. August sits at about 1.7× the park's average, or 14% of annual visitation.
A typical August sees about 1,000 recreation visits at Thaddeus Kosciuszko National Memorial, based on National Park Service monthly counts from 1981–2025.
Where to stay near Thaddeus Kosciuszko in August
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Top-rated places to stay near Thaddeus Kosciuszko
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See the full ranking of the best national parks to visit in August.
Source: National Park Service Visitor Use Statistics (1981–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.