Grand Teton National Park vs Great Sand Dunes National Park: which is better, month by month

Great Sand Dunes National Park beats Grand Teton National Park in 9 of 12 months — its lead peaks in December (71 vs 42) — while Grand Teton National Park wins June to July; they are within 3 points in August.

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 Teton National Park

🇺🇸 United States · continental climate

Best month
June 93/100
Months won
2 of 12

Great Sand Dunes National Park

🇺🇸 United States · arid climate

Best month
September 93/100
Months won
9 of 12

Grand Teton National Park vs Great Sand Dunes National Park — all 12 months

MonthGrand Teton National ParkGreat Sand Dunes National ParkWinnerGap
January45Ffreezing, a little rain, clean air64Cfreezing, dry, clean airGreat Sand Dunes National Park19
February49Ffreezing, rainy, clean air74Bcold, dry, clean airGreat Sand Dunes National Park25
March64Ccold, a little rain, reliable snow80Acold, dry, reliable snowGreat Sand Dunes National Park16
April72Bcold, a little rain, reliable snow86Acool, dry, reliable snowGreat Sand Dunes National Park14
May81Acool, a little rain, reliable snow92Snice, a little rainGreat Sand Dunes National Park11
June93Snice, a little rain, clean air88Awarm, dryGrand Teton National Park5
July90Swarm, dry, clean air83Ahot, a little rain, clean airGrand Teton National Park7
August87Anice, a little rain, clean air87Awarm, dry, clean airTie0
September89Anice, a little rain, clean air93Snice, dry, clean airGreat Sand Dunes National Park4
October75Bcold, a little rain, clean air90Scool, dry, clean airGreat Sand Dunes National Park15
November59Dfreezing, a little rain, clean air78Bcold, dry, clean airGreat Sand Dunes National Park19
December42Ffreezing, rainy, clean air71Bcold, dry, clean airGreat Sand Dunes National Park29

A month is a tie when the two are within 3 points. The widest gap is December (42 vs 71). Tap a month for that month's temperature, rain, humidity and air quality side by side.