George Rogers Clark National Historical Park in May
May at George Rogers Clark National Historical Park averages a daytime high near 77°F and an overnight low around 55°F, with about 5.5" of precipitation. Visitation runs about 2.9× the park's average month, which makes May a very busy month here.
- Average low
- 55°F
- Average high
- 77°F
Range across the year: 22°F to 89°F
- Precipitation
- 5.5 in
- Daylight
- 14.1 hours
Roughly 24% of the park's yearly visitors come in May: about 29,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
It is the single busiest month of the year at George Rogers Clark; January, the quietest, runs only about 0.2× the average — a 14-to-1 swing between high and low season.
On our Best Time to Visit score May rates 46/100 ("Fair"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 66°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 4.8 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 14.1 hours of daylight in May to explore — between the 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 113,397 recreation visits, down 31.9% from 166,621 in 2024.
Across the past decade overall visitation has risen about 18.6%, so a May visit is likely to feel busier than it did a few years ago.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 67°F / 44°F | 1.0× Average | 61 Good |
| May | 77°F / 55°F | 2.9× Very busy | 46 Fair |
| June | 86°F / 64°F | 1.0× Average | 71 Good |
All twelve months at George Rogers Clark, with the best time to visit.
Things to do at George Rogers Clark in May
The National Park Service tags 4 George Rogers Clark activities for spring. Each links to the park's own page for it.
- Become a Junior Ranger at George Rogers Clark · 15-45 minutes
- Park Film - Long Knives · 30 minutes
- See the Visitor Center · 5-20 minutes
- Visit the Clark Memorial · 5-30 minutes
Frequently Asked Questions
May averages a daytime high near 77°F and an overnight low around 55°F at George Rogers Clark National Historical Park, with about 5.5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 4.8 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is very busy at George Rogers Clark National Historical Park (about 2.9× the average month). Our best-time score rates it "Fair" at 46/100. Our recommended month is October.
The busiest month is May and the quietest is January. May sits at about 2.9× the park's average, or 24% of annual visitation.
A typical May sees about 29,000 recreation visits at George Rogers Clark National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near George Rogers Clark in May
Booking a May trip to George Rogers Clark National Historical Park? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near George Rogers Clark
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 George Rogers Clark in May?
Get crowd forecasts and lodging deals for George Rogers Clark by email. No spam, unsubscribe anytime.
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.