Allegheny Portage Railroad National Historic Site in May
May at Allegheny Portage Railroad National Historic Site averages a daytime high near 70°F and an overnight low around 49°F, with about 4.4" of precipitation. Visitation runs about 1.1× the park's average month, which makes May an average month here.
- Average low
- 49°F
- Average high
- 70°F
Range across the year: 19°F to 81°F
- Precipitation
- 4.4 in
- Daylight
- 14.2 hours
Roughly 9% of the park's yearly visitors come in May: about 17,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 7th-busiest of the park's twelve months, sitting between the July peak (1.4×) and the January low (0.5×).
May is our recommended month at Allegheny Portage Railroad: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 59°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 7.2 miles from the park.
Because June, July and August together draw about 33% 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 9.1-hour midwinter low and the 14.9-hour summer high.
Park-wide, 2025 drew 162,905 recreation visits, down 16% from 193,903 in 2024.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 60°F / 39°F | 1.2× Busy | 38 Poor |
| May | 70°F / 49°F | 1.1× Average | 56 Fair |
| June | 77°F / 57°F | 1.2× Busy | 60 Good |
All twelve months at Allegheny Portage Railroad, with the best time to visit.
Things to do at Allegheny Portage Railroad in May
The National Park Service tags 7 Allegheny Portage Railroad activities for spring. Each links to the park's own page for it.
Frequently Asked Questions
May averages a daytime high near 70°F and an overnight low around 49°F at Allegheny Portage Railroad National Historic Site, with about 4.4 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 7.2 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is average at Allegheny Portage Railroad National Historic Site (about 1.1× the average month). Our best-time score rates it "Fair" at 56/100. May is our recommended month for this park.
The busiest month is July and the quietest is January. May sits at about 1.1× the park's average, or 9% of annual visitation.
A typical May sees about 17,000 recreation visits at Allegheny Portage Railroad National Historic Site, based on National Park Service monthly counts from 1979–2025.
Where to stay near Allegheny Portage Railroad in May
Booking a May trip to Allegheny Portage Railroad National Historic Site? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Allegheny Portage Railroad
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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.