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

Great Sand Dunes National Park beats Boise in 8 of 12 months — its lead peaks in December (71 vs 47) — and they are within 3 points in the other 4 months.

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.

Boise

🇺🇸 United States · arid climate

Best month
September 94/100
Months won
0 of 12

Great Sand Dunes National Park

🇺🇸 United States · arid climate

Best month
September 93/100
Months won
8 of 12

Boise vs Great Sand Dunes National Park — all 12 months

MonthBoiseGreat Sand Dunes National ParkWinnerGap
January51Dcold, a little rain, clean air64Cfreezing, dry, clean airGreat Sand Dunes National Park13
February61Ccold, a little rain, clean air74Bcold, dry, clean airGreat Sand Dunes National Park13
March73Bcold, a little rain, clean air80Acold, dry, reliable snowGreat Sand Dunes National Park7
April84Acool, dry, clean air86Acool, dry, reliable snowTie2
May92Snice, a little rain, clean air92Snice, a little rainTie0
June90Swarm, dry, clean air88Awarm, dryTie2
July72Bsweltering, dry, clean air83Ahot, a little rain, clean airGreat Sand Dunes National Park11
August81Ahot, dry87Awarm, dry, clean airGreat Sand Dunes National Park6
September94Swarm, dry, clean air93Snice, dry, clean airTie1
October82Acool, dry, clean air90Scool, dry, clean airGreat Sand Dunes National Park8
November66Ccold, dry, clean air78Bcold, dry, clean airGreat Sand Dunes National Park12
December47Fcold, a little rain, clean air71Bcold, dry, clean airGreat Sand Dunes National Park24

A month is a tie when the two are within 3 points. The widest gap is December (47 vs 71). Tap a month for that month's temperature, rain, humidity and air quality side by side.