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WhenToVisitParks

Upper Delaware Scenic & Recreational River in May

Average1.1× average month · best-time score 67/100Our recommended month

May at Upper Delaware Scenic & Recreational River averages a daytime high near 71°F and an overnight low around 45°F, with about 3.8" of precipitation. Visitation runs about 1.1× the park's average month, which makes May an average month here.

Average low
45°F
Average high
71°F

Range across the year: 15°F to 82°F

Crowds
1.1× averageAverage
  1. J
  2. F
  3. M
  4. A
  5. M
  6. J
  7. J
  8. A
  9. S
  10. O
  11. N
  12. D
Precipitation
3.8 in
Daylight
14.3 hours

Roughly 9% of the park's yearly visitors come in May: about 26,000 recreation visits in a typical year, based on National Park Service monthly counts from 1980 to 2025.

That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (2.9×) and the December low (0.2×).

May is our recommended month at Upper Delaware: the lightest crowds of the park's good-weather months.

The daily average of about 58°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 1.5 miles from the park.

Because June, July and August together draw about 59% 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 14.3 hours of daylight in May to explore — between the 9-hour midwinter low and the 15-hour summer high.

Park-wide, 2025 drew 380,245 recreation visits, up 0.8% from 377,061 in 2024.

Across the past decade overall visitation has risen about 34.9%, so a May visit is likely to feel busier than it did a few years ago.

How May compares with the months around it

MonthAvg high / lowCrowdsBest-time score
April59°F / 35°F0.3× Very quiet64 Good
May71°F / 45°F1.1× Average67 Good
June78°F / 54°F1.5× Busy70 Good

All twelve months at Upper Delaware, with the best time to visit.

Things to do at Upper Delaware in May

The National Park Service tags 16 Upper Delaware activities for spring. Here are 8 of them. Each links to the park's own page for it.

Reviewed by WhenToVisitParks Editorial Team · Updated

Frequently Asked Questions

May averages a daytime high near 71°F and an overnight low around 45°F at Upper Delaware Scenic & Recreational River, with about 3.8 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 1.5 miles from the park, so conditions inside the park can differ, especially at other elevations.

May is average at Upper Delaware Scenic & Recreational River (about 1.1× the average month). Our best-time score rates it "Good" at 67/100. May is our recommended month for this park.

The busiest month is July and the quietest is December. May sits at about 1.1× the park's average, or 9% of annual visitation.

A typical May sees about 26,000 recreation visits at Upper Delaware Scenic & Recreational River, based on National Park Service monthly counts from 1980–2025.

Where to stay near Upper Delaware in May

Booking a May trip to Upper Delaware Scenic & Recreational River? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.

Top-rated places to stay near Upper Delaware

Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Visiting Upper Delaware in May?

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See the full ranking of the best national parks to visit in May.

Source: National Park Service Visitor Use Statistics (1980–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.