Johnstown Flood National Memorial in May
May at Johnstown Flood National Memorial averages a daytime high near 68°F and an overnight low around 49°F, with about 4.1" of precipitation. Visitation runs about 1.6× the park's average month, which makes May a busy month here.
- Average low
- 49°F
- Average high
- 68°F
Range across the year: 19°F to 79°F
- Precipitation
- 4.1 in
- Daylight
- 14.2 hours
Roughly 13% of the park's yearly visitors come in May: about 19,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 3rd-busiest of the park's twelve months, sitting between the July peak (1.8×) and the January low (0.1×).
On our Best Time to Visit score May rates 47/100 ("Fair"). Our recommended month is June: 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 3.7 miles from the park.
Because June, July and August together draw about 38% 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 74,977 recreation visits, down 21.8% from 95,842 in 2024.
Across the past decade overall visitation has eased about 23.5%, 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 | 58°F / 38°F | 1.0× Average | 48 Fair |
| May | 68°F / 49°F | 1.6× Busy | 47 Fair |
| June | 75°F / 57°F | 1.0× Average | 69 Good |
All twelve months at Johnstown Flood, with the best time to visit.
Things to do at Johnstown Flood in May
The National Park Service tags 4 Johnstown Flood activities for spring. Each links to the park's own page for it.
Frequently Asked Questions
May averages a daytime high near 68°F and an overnight low around 49°F at Johnstown Flood National Memorial, with about 4.1 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 3.7 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is busy at Johnstown Flood National Memorial (about 1.6× the average month). Our best-time score rates it "Fair" at 47/100. Our recommended month is June.
The busiest month is July and the quietest is January. May sits at about 1.6× the park's average, or 13% of annual visitation.
A typical May sees about 19,000 recreation visits at Johnstown Flood National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Johnstown Flood in May
Booking a May trip to Johnstown Flood National Memorial? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Johnstown Flood
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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.