What is the weather like in Grand Canyon National Park vs Petrified Forest National Park in May?

In May, Grand Canyon National Park averages 31°C high / 15°C low with about 10 mm of rain; Petrified Forest National Park averages 27°C high / 8°C low with about 8 mm.

Grand Canyon National Park vs Petrified Forest National Park in May

Petrified Forest National Park is the better pick in May — 85 vs 67 on SeasonMap's comfort score. Petrified Forest National Park is nice, dry, while Grand Canyon National Park is hot, dry.

Grand Canyon National Park vs Petrified Forest National Park — May climate, side by side

	🇺🇸 Grand Canyon National Park	🇺🇸 Petrified Forest National Park
Comfort score	67/100 (C)	85/100 (A)
Feels-like high	29°C	22°C
Avg high / low	31° / 15°	27° / 8°
Rainfall	10 mm	8 mm
Rainy days	1	2
Humidity	27%	24%
Air quality (AQI)	56	60

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Grand Canyon National Park vs Petrified Forest National Park in May — FAQ

Is May better in Grand Canyon National Park or Petrified Forest National Park?: Petrified Forest National Park is the better pick in May — 85 vs 67 on SeasonMap's comfort score. Petrified Forest National Park is nice, dry, while Grand Canyon National Park is hot, dry.
What is the weather like in Grand Canyon National Park vs Petrified Forest National Park in May?: In May, Grand Canyon National Park averages 31°C high / 15°C low with about 10 mm of rain; Petrified Forest National Park averages 27°C high / 8°C low with about 8 mm.