Zion National Park in May
Crowds and weather in May · NPS visitor counts 2022–2025 · NOAA 1991–2020 averages
May at a glance
Crowds: Peak — about 18,701 visitors a day, 93% of the June peak. May is the 11th quietest month of 12.
Weather: average high 84°F (29°C), low 52°F (11°C); 0.8 in (20 mm) of precipitation on about 2 days.
Verdict: ○ Mild weather, busy.
Similar weather with fewer people: September (81% of peak, high 91°F).
May visitors, year by year
| May | Recreation visits | Per day |
|---|---|---|
| 2022 | 539,172 | 17,393 |
| 2023 | 514,283 | 16,590 |
| 2024 | 589,505 | 19,016 |
| 2025 | 589,279 | 19,009 |
“Unusually low” marks a year when May's share of the annual total was less than half the other years' — usually a closure (storms, fire, a government shutdown) or a counting gap. The typical figure above uses the median share of 2022–2025, scaled to 2025's total.
May compared with the months around it
| Month | Crowds · visitors/day | High / low · precip. |
|---|---|---|
| April | Busy83% of peak · 16,768/day | 73° / 44°F1.2 in · 3 wet days |
| May | Peak93% of peak · 18,701/day | 84° / 52°F0.8 in · 2 wet days |
| June | Peak100% of peak · 20,182/day | 95° / 62°F0.2 in · 1 wet days |
Other parks with mild weather and fewer people in May
- Acadia
41% of peak · high 64°F
- Grand Teton
42% of peak · high 62°F
- Rocky Mountain
42% of peak · high 61°F
- Badlands
45% of peak · high 72°F
- Olympic
49% of peak · high 63°F
- Shenandoah
49% of peak · high 74°F
Months with few visitors can mean seasonal closures of roads, shuttles or campgrounds. Check current conditions on the official Zion National Park website before you go.
Sources. Visitor counts: National Park Service, Visitor Use Statistics (recreation visits, final figures through 2025; typical months use 2022–2025). Weather: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020 (station ZION NP, USC00429717, 4,039 ft / 1,231 m). Both are U.S. Government works in the public domain. How we calculate.
Park Months is an independent site and is not affiliated with the National Park Service or NOAA.