Lowell National Historical Park in May
May at Lowell National Historical Park averages a daytime high near 70°F and an overnight low around 45°F, with about 3.8" of precipitation. Visitation runs about 0.8× the park's average month, which makes May a quiet month here.
- Average low
- 45°F
- Average high
- 70°F
Range across the year: 16°F to 85°F
- Precipitation
- 3.8 in
- Daylight
- 14.4 hours
Roughly 7% 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 1979 to 2025.
That makes May the 5th-busiest of the park's twelve months, sitting between the July peak (4.8×) and the December low (0.3×).
On our Best Time to Visit score May rates 75/100 ("Excellent"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
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 2.4 miles from the park.
Because June, July and August together draw about 60% 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 14.4 hours of daylight in May to explore — between the 8.9-hour midwinter low and the 15.1-hour summer high.
Park-wide, 2024 drew 264,456 recreation visits, up 3.2% from 256,303 in 2023.
Across the past decade overall visitation has eased about 52.5%, 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 | 59°F / 35°F | 0.6× Quiet | 62 Good |
| May | 70°F / 45°F | 0.8× Quiet | 75 Excellent |
| June | 79°F / 55°F | 0.9× Average | 85 Excellent |
All twelve months at Lowell, with the best time to visit.
Things to do at Lowell in May
The National Park Service tags 4 Lowell activities for spring. Each links to the park's own page for it.
- Become a Lowell Junior Ranger · 30-180 minutes
- Earn an Acre Community Ranger Badge · 30-120 minutes
- Explore the Boott Cotton Mills Museum · 30-120 minutes
- Visit the Park Store at the Boott Cotton Mills Museum
Frequently Asked Questions
May averages a daytime high near 70°F and an overnight low around 45°F at Lowell National Historical Park, with about 3.8 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.4 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is quiet at Lowell National Historical Park (about 0.8× the average month). Our best-time score rates it "Excellent" at 75/100. Our recommended month is September.
The busiest month is July and the quietest is December. May sits at about 0.8× the park's average, or 7% of annual visitation.
A typical May sees about 26,000 recreation visits at Lowell National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Lowell in May
Booking a May trip to Lowell National Historical Park? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Lowell
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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.