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

Rocky Mountain National Park beats Aspen in 7 of 12 months — its lead peaks in August (94 vs 14) — while Aspen wins November to March.

Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Aspen

🇺🇸 United States · continental climate

Best month
January 93/100
Months won
5 of 12

Rocky Mountain National Park

🇺🇸 United States · continental climate

Best month
August 94/100
Months won
7 of 12

Aspen vs Rocky Mountain National Park — all 12 months

MonthAspenRocky Mountain National ParkWinnerGap
January93Sfreezing, a little rain, clean air45Ffreezing, a little rain, clean airAspen48
February90Sfreezing, a little rain, reliable snow49Ffreezing, rainy, reliable snowAspen41
March82Acold, a little rain, reliable snow62Cfreezing, rainy, reliable snowAspen20
April61Ccold, a little rain, reliable snow69Ccold, rainy, reliable snowRocky Mountain National Park8
May34Fcool, a little rain, reliable snow77Bcold, rainy, reliable snowRocky Mountain National Park43
June18Fnice, dry92Snice, a little rain, clean airRocky Mountain National Park74
July12Fwarm, a little rain88Anice, a little rainRocky Mountain National Park76
August14Fwarm, a little rain, clean air94Snice, a little rain, clean airRocky Mountain National Park80
September20Fnice, a little rain, clean air90Scool, a little rain, clean airRocky Mountain National Park70
October43Fcool, a little rain, clean air75Bcold, a little rain, clean airRocky Mountain National Park32
November74Bcold, a little rain, clean air60Cfreezing, a little rain, clean airAspen14
December87Afreezing, a little rain, clean air47Ffreezing, a little rain, clean airAspen40

A month is a tie when the two are within 3 points. The widest gap is August (14 vs 94). Tap a month for that month's temperature, rain, humidity and air quality side by side.