Weather on December 17 at Great Sand Dunes

Great Sand Dunes National Park and Preserve

CORocky Mountain8,200 ft elevation
Avg High35°F
Avg Low-2°F
Warmest200639°F
Coldest1992-5°F

Based on 55 years of data from Alamosa, CO

Elevation Note: Great Sand Dunes sits at 8,200 ft. Expect temperatures 29°F cooler than the data shown below, which comes from Alamosa, CO at a lower elevation.

Planning Your Visit

December 17th in Great Sand Dunes National Park (via Alamosa, CO) typically brings cold winter weather, with average highs around 35°F and lows near -2°F — a 37°F daily swing. Over 55 years of records, the warmest December 17th was in 2006 (39°F average), while the coldest was 1992 (-5°F) — a 44°F range across recorded history. Precipitation has occurred on 9% of recorded December 17th dates, with snow falling 7% of the time (heaviest snowfall: 3.3"). The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.

Planning for December 17th in Great Sand Dunes? Bundle up with warm layers and protect extremities from the cold.

Year by Year History

YearHighLowPrecipSnow
202550°F7°F0"--
202441°F5°F0"0"
202335°F-3°F0"0"
202224°F-8°F0"0"
202146°F1°F0"0"
202030°F-5°F0"0"
201928°F-10°F0"0"
201848°F2°F0"0"
201744°F3°F0"0"
201647°F28°F0.51"0.2"
201527°F-3°F0"0"
201441°F13°F0"0"
201333°F-4°F0"0"
201233°F-11°F0"0"
201129°F-5°F0"--
201033°F13°F0.46"1.9"
200935°F-3°F0"0"
200834°F16°F0.03"0"
200720°F-20°F0"0"
200653°F25°F0"0"
200529°F-9°F0"0"
200439°F-5°F0"0"
200331°F-8°F0"0"
200238°F13°F0"0"
200137°F-1°F0"0"
200050°F1°F0"0"
199944°F2°F0"0"
199850°F5°F0"0"
199726°F-8°F0"0"
199618°F-10°F0"0"
199538°F11°F0"0"
199441°F2°F0"0"
199331°F-4°F0"0"
199211°F-20°F0"0"
199121°F-15°F0"0"
199033°F-9°F0.51"3.3"
198926°F-13°F0"0"
198835°F0°F0"0"
198731°F11°F0"0"
198634°F4°F0"0"
198528°F-14°F0"0"
198434°F-3°F0"0"
198326°F-13°F0"0"
198246°F4°F0"0"
198136°F-1°F0"0"
198055°F5°F0"0"
197945°F-1°F0"0"
197818°F-12°F0.03"0.3"
197735°F-6°F0"0"
197634°F-9°F0"0"
197532°F-10°F0"0"
197439°F-1°F0"0"
197350°F4°F0"0"
197223°F-16°F0"0"
197125°F-20°F0"0"

December 17 at Nearby Parks

Holiday Weather at Great Sand Dunes

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