Weather on March 30 at Great Sand Dunes

Great Sand Dunes National Park and Preserve

CORocky Mountain8,200 ft elevation
Avg High54°F
Avg Low19°F
Warmest202658°F
Coldest199521°F

Based on 56 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

March 30th in Great Sand Dunes National Park (via Alamosa, CO) typically brings cool spring weather, with average highs around 54°F and lows near 19°F — a 35°F daily swing. Over 56 years of records, the warmest March 30th was in 2026 (58°F average), while the coldest was 1995 (21°F) — a 37°F range across recorded history. Precipitation has occurred on 14% of recorded March 30th dates, with snow falling 14% of the time (heaviest snowfall: 4.1"). The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.

Planning for March 30th in Great Sand Dunes? Bring layers as temperatures can vary throughout the day.

Year by Year History

YearHighLowPrecipSnow
202671°F44°F0"0"
202557°F20°F0"0"
202456°F31°F0"0"
202359°F16°F0"0"
202253°F29°F0.15"1"
202162°F20°F0"0"
202053°F13°F0"0"
201954°F18°F0"0"
201854°F18°F0"0"
201757°F24°F0"0"
201656°F15°F0"0"
201569°F34°F0"0"
201462°F24°F0"0"
201359°F16°F0"0"
201267°F23°F0"0"
201152°F19°F0"--
201058°F25°F0"0"
200955°F14°F0"0"
200858°F27°F0"0"
200741°F16°F0"0"
200653°F26°F0"0"
200545°F17°F0"0"
200467°F16°F0"0"
200355°F10°F0"0"
200269°F19°F0"0"
200153°F24°F0"0"
200045°F24°F0.38"2.3"
199965°F33°F0"0"
199835°F18°F0"0"
199761°F6°F0"0"
199657°F15°F0"0"
199537°F5°F0"0"
199450°F10°F0"0"
199349°F17°F0"0"
199251°F31°F0"0"
199151°F23°F0"0"
199039°F27°F0.18"0.7"
198956°F12°F0"0"
198855°F18°F0.05"0.2"
198744°F4°F0"0"
198668°F23°F0"0"
198533°F13°F0.05"0.2"
198442°F21°F0.03"0.1"
198362°F16°F0"0"
198241°F16°F0"0"
198153°F17°F0.05"0.2"
198049°F13°F0"0"
197950°F15°F0"0"
197869°F23°F0"0"
197746°F-1°F0"0"
197640°F14°F0"0"
197543°F6°F0"0"
197466°F26°F0"0"
197340°F18°F0.36"4.1"
197237°F9°F0"0"
197168°F17°F0"0"

March 30 at Nearby Parks

Holiday Weather at Great Sand Dunes

Official NPS WebsiteVisit nps.gov/grsa for park information, alerts, and reservations

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