Adams National Historical Park in July
July at Adams National Historical Park averages a daytime high near 83°F and an overnight low around 63°F, with about 3.6" of precipitation. Visitation runs about 2.6× the park's average month, which makes July a very busy month here.
- Average low
- 63°F
- Average high
- 83°F
Range across the year: 22°F to 83°F
- Precipitation
- 3.6 in
- Daylight
- 14.8 hours
Roughly 22% of the park's yearly visitors come in July: about 20,000 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 Adams; January, the quietest, runs only about 0× the average — a 52-to-1 swing between high and low season.
On our Best Time to Visit score July rates 47/100 ("Fair"). Our recommended month is May: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 73°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 5.4 miles from the park.
July falls inside the park's busiest stretch: June, July and August together pull about 53% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 14.8 hours of daylight in July to explore — near the year-round maximum.
Park-wide, 2025 drew 48,726 recreation visits, up 6.7% from 45,656 in 2024.
Across the past decade overall visitation has eased about 80.1%, so July may feel a touch quieter than it once did.
How July compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| June | 77°F / 57°F | 1.7× Very busy | 69 Good |
| July | 83°F / 63°F | 2.6× Very busy | 47 Fair |
| August | 82°F / 62°F | 2.1× Very busy | 56 Fair |
All twelve months at Adams, with the best time to visit.
Frequently Asked Questions
July averages a daytime high near 83°F and an overnight low around 63°F at Adams National Historical Park, with about 3.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 5.4 miles from the park, so conditions inside the park can differ, especially at other elevations.
July is very busy at Adams National Historical Park (about 2.6× the average month). Our best-time score rates it "Fair" at 47/100. Our recommended month is May.
The busiest month is July and the quietest is January. July sits at about 2.6× the park's average, or 22% of annual visitation.
A typical July sees about 20,000 recreation visits at Adams National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Adams in July
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Top-rated places to stay near Adams
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See the full ranking of the best national parks to visit in July.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.