Thomas Edison National Historical Park in July
July at Thomas Edison National Historical Park averages a daytime high near 86°F and an overnight low around 64°F, with about 4.8" of precipitation. Visitation runs about 1.5× the park's average month, which makes July a busy month here.
- Average low
- 64°F
- Average high
- 86°F
Range across the year: 21°F to 86°F
- Precipitation
- 4.8 in
- Daylight
- 14.7 hours
Roughly 12% of the park's yearly visitors come in July: roughly 6,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes July the 2nd-busiest of the park's twelve months, sitting between the August peak (1.6×) and the January low (0.6×).
On our Best Time to Visit score July rates 46/100 ("Fair"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 75°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 4.1 miles from the park.
July falls inside the park's busiest stretch: June, July and August together pull about 37% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 14.7 hours of daylight in July to explore — near the year-round maximum.
Park-wide, 2021 drew 14,807 recreation visits, down 64.9% from 42,224 in 2019.
Across the past decade overall visitation has eased about 15.6%, 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 | 81°F / 59°F | 1.4× Busy | 57 Fair |
| July | 86°F / 64°F | 1.5× Busy | 46 Fair |
| August | 84°F / 63°F | 1.6× Busy | 43 Poor |
All twelve months at Thomas Edison, with the best time to visit.
Frequently Asked Questions
July averages a daytime high near 86°F and an overnight low around 64°F at Thomas Edison National Historical Park, with about 4.8 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 4.1 miles from the park, so conditions inside the park can differ, especially at other elevations.
July is busy at Thomas Edison National Historical Park (about 1.5× the average month). Our best-time score rates it "Fair" at 46/100. Our recommended month is September.
The busiest month is August and the quietest is January. July sits at about 1.5× the park's average, or 12% of annual visitation.
A typical July sees about 6,000 recreation visits at Thomas Edison National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Thomas Edison in July
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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.