Grand Canyon National Park vs Petrified Forest National Park: which is better, month by month

Petrified Forest National Park beats Grand Canyon National Park in 7 of 12 months — its lead peaks in September (79 vs 52) — while Grand Canyon National Park wins February, March and November; they are within 3 points in December to January.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Grand Canyon National Park

🇺🇸 United States · arid climate

Best month
March 94/100
Months won
3 of 12

Petrified Forest National Park

🇺🇸 United States · arid climate

Best month
October 90/100
Months won
7 of 12

Grand Canyon National Park vs Petrified Forest National Park — all 12 months

MonthGrand Canyon National ParkPetrified Forest National ParkWinnerGap
January75Bcool, dry, clean air72Bcold, dry, clean airTie3
February87Acool, dry, clean air78Bcold, dry, clean airGrand Canyon National Park9
March94Snice, dry, clean air82Acool, dry, clean airGrand Canyon National Park12
April85Awarm, dry, clean air89Anice, dryPetrified Forest National Park4
May67Chot, dry85Anice, dryPetrified Forest National Park18
June34Fsweltering, dry60Chot, dryPetrified Forest National Park26
July27Fsweltering, dry49Fsweltering, a little rainPetrified Forest National Park22
August37Fsweltering, a little rain, clean air58Dhot, dry, clean airPetrified Forest National Park21
September52Dhot, dry, clean air79Bwarm, dry, clean airPetrified Forest National Park27
October82Awarm, dry, clean air90Snice, dry, clean airPetrified Forest National Park8
November92Snice, dry, clean air84Acool, dry, clean airGrand Canyon National Park8
December78Bcool, dry, clean air75Bcold, dry, clean airTie3

A month is a tie when the two are within 3 points. The widest gap is September (52 vs 79). Tap a month for that month's temperature, rain, humidity and air quality side by side.