Valley Forge National Historical Park in May
May at Valley Forge National Historical Park averages a daytime high near 75°F and an overnight low around 51°F, with about 3.3" of precipitation. Visitation runs about 1.1× the park's average month, which makes May an average month here.
- Average low
- 51°F
- Average high
- 75°F
Range across the year: 23°F to 88°F
- Precipitation
- 3.3 in
- Daylight
- 14.2 hours
Roughly 10% of the park's yearly visitors come in May: about 186,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (1.5×) and the January low (0.4×).
On our Best Time to Visit score May rates 60/100 ("Good"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 63°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 2.6 miles from the park.
Because June, July and August together draw about 35% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 14.2 hours of daylight in May to explore — between the 9.2-hour midwinter low and the 14.8-hour summer high.
Park-wide, 2025 drew 1,819,086 recreation visits, down 2.5% from 1,866,480 in 2024.
Across the past decade overall visitation has eased about 18.9%, so May may feel a touch quieter than it once did.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 65°F / 41°F | 1.0× Average | 53 Fair |
| May | 75°F / 51°F | 1.1× Average | 60 Good |
| June | 83°F / 61°F | 1.4× Busy | 52 Fair |
All twelve months at Valley Forge, with the best time to visit.
Things to do at Valley Forge in May
The National Park Service tags 14 Valley Forge activities for spring. Here are 8 of them. Each links to the park's own page for it.
- Explore the Iron Making in Colonial America Museum Exhibit · 5-30 minutes
- Rent a Bicycle · 2-8 hours · reservation required
- Be a Valley Forge B.A.R.K. Ranger · 10-30 minutes
- Be a Virtual Junior Ranger · 30-45 minutes
- Dial in to the Cell Phone Guide · 2-120 minutes
- Explore the Valley Forge Encampment Museum Exhibit · 20-60 minutes
- Listen to the Audio Tour · 60-90 minutes
- Watch the Park Orientation Film · 19 minutes
Frequently Asked Questions
May averages a daytime high near 75°F and an overnight low around 51°F at Valley Forge National Historical Park, with about 3.3 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.6 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is average at Valley Forge National Historical Park (about 1.1× the average month). Our best-time score rates it "Good" at 60/100. Our recommended month is September.
The busiest month is July and the quietest is January. May sits at about 1.1× the park's average, or 10% of annual visitation.
A typical May sees about 186,000 recreation visits at Valley Forge National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Valley Forge in May
Booking a May trip to Valley Forge National Historical Park? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Valley Forge
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.