Hamilton Grange National Memorial in August
August at Hamilton Grange National Memorial averages a daytime high near 83°F and an overnight low around 69°F, with about 4.6" of precipitation. Visitation runs about 1.2× the park's average month, which makes August a busy month here.
- Average low
- 69°F
- Average high
- 83°F
Range across the year: 28°F to 85°F
- Precipitation
- 4.6 in
- Daylight
- 13.6 hours
Roughly 10% of the park's yearly visitors come in August: roughly 5,700 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 (1.3×) and the January low (0.5×).
On our Best Time to Visit score August rates 44/100 ("Poor"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 76°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 3 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 31% 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 9.1-hour midwinter low and the 14.9-hour summer high.
Park-wide, 2024 drew 63,647 recreation visits, up 30.8% from 48,674 in 2023.
Across the past decade overall visitation has eased about 12.2%, 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 | 85°F / 70°F | 1.3× Busy | 40 Poor |
| August | 83°F / 69°F | 1.2× Busy | 44 Poor |
| September | 76°F / 62°F | 0.8× Quiet | 67 Good |
All twelve months at Hamilton Grange, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 83°F and an overnight low around 69°F at Hamilton Grange National Memorial, with about 4.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 3 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is busy at Hamilton Grange National Memorial (about 1.2× the average month). Our best-time score rates it "Poor" at 44/100. Our recommended month is September.
The busiest month is July and the quietest is January. August sits at about 1.2× the park's average, or 10% of annual visitation.
A typical August sees about 6,000 recreation visits at Hamilton Grange National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Hamilton Grange in August
Booking a August trip to Hamilton Grange National Memorial? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Hamilton Grange
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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.