Piscataway Park in May
May at Piscataway Park averages a daytime high near 76°F and an overnight low around 55°F, with about 4.5" of precipitation. Visitation runs about 1.2× the park's average month, which makes May a busy month here.
- Average low
- 55°F
- Average high
- 76°F
Range across the year: 27°F to 88°F
- Precipitation
- 4.5 in
- Daylight
- 14.1 hours
Roughly 10% of the park's yearly visitors come in May: about 23,000 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 June peak (1.3×) and the January low (0.5×).
On our Best Time to Visit score May rates 50/100 ("Fair"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 65°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 8.1 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 14.1 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 275,070 recreation visits, down 17.7% from 334,260 in 2024.
Across the past decade overall visitation has risen about 53.8%, 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 / 45°F | 1.0× Average | 48 Fair |
| May | 76°F / 55°F | 1.2× Busy | 50 Fair |
| June | 84°F / 64°F | 1.3× Busy | 44 Poor |
All twelve months at Piscataway, with the best time to visit.
Things to do at Piscataway in May
The National Park Service tags 4 Piscataway activities for spring. Each links to the park's own page for it.
- Bicycle Smallwood State Park to Oxon Cove Park · 1-2 days
- Collect all the National Capital Parks - East Passport Stamps · 5-10 minutes
- Junior Ranger Programs at National Capital Parks - East · 30-90 minutes
- See Mount Vernon From Piscataway Park · 1-2 hours
Frequently Asked Questions
May averages a daytime high near 76°F and an overnight low around 55°F at Piscataway Park, with about 4.5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 8.1 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is busy at Piscataway Park (about 1.2× the average month). Our best-time score rates it "Fair" at 50/100. Our recommended month is September.
The busiest month is June and the quietest is January. May sits at about 1.2× the park's average, or 10% of annual visitation.
A typical May sees about 23,000 recreation visits at Piscataway Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Piscataway in May
Booking a May trip to Piscataway Park? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Piscataway
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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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.