Rocky Mountain National Park vs Yellowstone National Park: which is better, month by month

Rocky Mountain National Park beats Yellowstone National Park in 5 of 12 months — its lead peaks in June (92 vs 86) — and they are within 3 points in the other 7 months.

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.

Rocky Mountain National Park

🇺🇸 United States · continental climate

Best month: August 94/100
Months won: 5 of 12

Yellowstone National Park

🇺🇸 United States · continental climate

Best month: August 92/100
Months won: 0 of 12

Rocky Mountain National Park vs Yellowstone National Park — all 12 months

Month	Rocky Mountain National Park	Yellowstone National Park	Winner	Gap
January	45Ffreezing, a little rain, clean air	45Ffreezing, a little rain, clean air	Tie	0
February	49Ffreezing, rainy, reliable snow	47Ffreezing, a little rain, clean air	Tie	2
March	62Cfreezing, rainy, reliable snow	62Cfreezing, a little rain, muggy air	Tie	0
April	69Ccold, rainy, reliable snow	71Bcold, a little rain, reliable snow	Tie	2
May	77Bcold, rainy, reliable snow	78Bcold, a little rain, reliable snow	Tie	1
June	92Snice, a little rain, clean air	86Acool, a little rain	Rocky Mountain National Park	6
July	88Anice, a little rain	90Snice, dry	Tie	2
August	94Snice, a little rain, clean air	92Snice, a little rain, clean air	Tie	2
September	90Scool, a little rain, clean air	84Acool, a little rain, clean air	Rocky Mountain National Park	6
October	75Bcold, a little rain, clean air	70Bcold, a little rain, clean air	Rocky Mountain National Park	5
November	60Cfreezing, a little rain, clean air	55Dfreezing, a little rain, clean air	Rocky Mountain National Park	5
December	47Ffreezing, a little rain, clean air	42Ffreezing, a little rain, clean air	Rocky Mountain National Park	5

A month is a tie when the two are within 3 points. The widest gap is June (92 vs 86). Tap a month for that month's temperature, rain, humidity and air quality side by side.