Weather on September 20 at White Sands

White Sands National Park

NMSouthwest4,000 ft elevation
Avg High85°F
Avg Low58°F
Warmest202481°F
Coldest199154°F

Based on 54 years of data from Alamogordo, NM

Elevation Note: White Sands sits at 4,000 ft. Expect temperatures 14°F cooler than the data shown below, which comes from Alamogordo, NM at a lower elevation.

Planning Your Visit

September 20th in White Sands National Park (via Alamogordo, NM) typically brings warm fall weather, with average highs around 85°F and lows near 58°F — a 27°F daily swing. Over 54 years of records, the warmest September 20th was in 2024 (81°F average), while the coldest was 1991 (54°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 13% of September 20th dates historically, with the wettest September 20th recording 1.63" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.

Planning for September 20th in White Sands? Stay hydrated and seek shade during peak afternoon hours.

Year by Year History

YearHighLowPrecipSnow
202586°F59°F0"--
202493°F70°F0"--
202390°F54°F0.1"--
202288°F64°F0"--
202190°F64°F0"--
202084°F52°F0"--
201990°F64°F0.84"0"
201873°F61°F1.4"0"
201790°F63°F0"0"
201690°F63°F0"0"
201582°F63°F0"0"
201482°F64°F0"0"
201373°F59°F0"0"
201291°F55°F0"0"
201175°F47°F0"--
201078°F55°F--0"
200971°F48°F0"0"
200883°F53°F0"0"
200788°F68°F0"0"
200679°F61°F0"0"
200593°F67°F0"0"
200479°F62°F0.51"0"
200387°F57°F0"0"
200271°F41°F0"0"
200182°F55°F0"0"
200091°F62°F0"0"
199987°F59°F0"0"
199890°F64°F0"0"
199681°F55°F0"0"
199583°F60°F0"0"
199489°F58°F0"0"
199391°F51°F0"0"
199282°F59°F0"0"
199163°F46°F0"0"
199083°F61°F0"0"
198987°F62°F0"0"
198883°F62°F0.23"0"
198788°F53°F0"0"
198691°F66°F0"0"
198580°F56°F0.41"0"
198487°F56°F0"0"
198381°F66°F0"0"
198285°F59°F0"0"
198191°F54°F0"0"
198090°F58°F0"0"
197984°F50°F0"0"
197888°F55°F0"0"
197794°F64°F0"0"
197685°F56°F0"0"
197587°F55°F1.63"0"
197482°F54°F0"0"
197395°F58°F0"0"
197282°F67°F0"0"
197177°F40°F0"0"

September 20 at Nearby Parks

Holiday Weather at White Sands

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

Explore More at White Sands

See historical weather for other dates

Back to White Sands