Hamilton Grange National Memorial in May
May at Hamilton Grange National Memorial averages a daytime high near 71°F and an overnight low around 55°F, with about 4" of precipitation. Visitation runs about 1.1× the park's average month, which makes May an average month here.
- Average low
- 55°F
- Average high
- 71°F
Range across the year: 28°F to 85°F
- Precipitation
- 4.0 in
- Daylight
- 14.3 hours
Roughly 9% of the park's yearly visitors come in May: roughly 5,000 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 (1.3×) and the January low (0.5×).
On our Best Time to Visit score May rates 57/100 ("Fair"). 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 3 miles from the park.
Because June, July and August together draw about 31% 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 9.1-hour midwinter low and the 14.9-hour summer high.
Park-wide, 2024 drew 63,647 recreation visits, up 30.8% from 48,674 in 2023.
Across the past decade overall visitation has eased about 12.2%, 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 | 62°F / 46°F | 1.1× Average | 42 Poor |
| May | 71°F / 55°F | 1.1× Average | 57 Fair |
| June | 80°F / 64°F | 1.2× Busy | 53 Fair |
All twelve months at Hamilton Grange, with the best time to visit.
Frequently Asked Questions
May averages a daytime high near 71°F and an overnight low around 55°F at Hamilton Grange National Memorial, with about 4 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 3 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is average at Hamilton Grange National Memorial (about 1.1× the average month). Our best-time score rates it "Fair" at 57/100. 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 9% of annual visitation.
A typical May sees about 5,000 recreation visits at Hamilton Grange National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Hamilton Grange in May
Booking a May trip to Hamilton Grange National Memorial? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Hamilton Grange
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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.