Weather on December 20

Anchorage, AK

55 Years of Data

Avg High
23°F
Avg Low
8°F
Warmest
2011
34°F avg
Coldest
2022
-9°F avg

About This Date

December 20th in Anchorage, AK typically brings very cold winter weather, with average highs around 23°F and lows near 8°F. Over 31 years of records, the warmest December 20th was in 2011 (34°F average), while the coldest was 2022 (-9°F) — a 43°F range across recorded history. Precipitation has occurred on 35% of recorded December 20th dates, with snow falling 10% of the time (heaviest snowfall: 12.5"). The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.

The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.

Planning for December 20th in Anchorage, AK? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.

Warming Trend
0.8°F per decade on this date
YearHighLowAvgPrecipSnow
202517°-11°
202424°18°21°
202325°22°24°
2022coldest-1°-17°-9°
202122°17°20°0.79"
202026°17°0.05"
201914°
201821°14°18°
201736°19°28°
201620°14°
201524°13°19°
201422°12°17°
201324°17°0.1"
201220°-2°0.03"
2011warmest43°25°34°0.38"
201018°11°
200929°18°
200820°14°
200710°-10°0.05"
200628°11°20°0.89"
200522°13°17°
200429°16°22°0.03"
200322°13°0.41"5.5"
200221°15°
200127°13°0.5"
200043°18°30°1.19"
199935°22°28°0.18"12.5"
199822°14°
199719°12°
197214°
197125°-16°
31 years of data from ANCHORAGE PARK STRIP

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

December 20th Weather in Anchorage, AK - 55 Years of History