Weather on March 21 at Glacier Bay

Glacier Bay National Park and Preserve

AKAlaska
Avg High42°F
Avg Low28°F
Warmest201944°F
Coldest200115°F

Based on 56 years of data from Juneau, AK

Planning Your Visit

March 21st in Glacier Bay National Park (via Juneau, AK) typically brings chilly spring weather, with average highs around 42°F and lows near 28°F. Over 56 years of records, the warmest March 21st was in 2019 (44°F average), while the coldest was 2001 (15°F) — a 29°F range across recorded history. Precipitation has occurred on 48% of recorded March 21st dates, with snow falling 18% of the time (heaviest snowfall: 5.5"). The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.

Planning for March 21st in Glacier Bay? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202638°F31°F0.2"5.5"
202543°F34°F0.2"0"
202452°F25°F0"0"
202342°F31°F0.1"0"
202242°F33°F0.74"0"
202135°F30°F0.76"4"
202041°F27°F0.08"0"
201950°F37°F0"0"
201840°F26°F0.13"0.5"
201742°F24°F0"0"
201653°F33°F0"0"
201543°F36°F1.07"0"
201438°F25°F0"0"
201331°F10°F0"0"
201236°F20°F0"0"
201140°F20°F0"0"
201043°F26°F0"0"
200935°F24°F0"0.3"
200840°F30°F0.08"0.1"
200738°F31°F1.07"1.6"
200647°F27°F0"0"
200536°F28°F0"0"
200449°F19°F0"0"
200345°F30°F0.18"0"
200250°F23°F0"0"
200125°F6°F0"0"
200042°F35°F0.61"0"
199941°F34°F0.33"0"
199861°F23°F0"0"
199739°F33°F1.24"0.5"
199635°F22°F0"0"
199541°F24°F0"0"
199437°F27°F0.03"0.2"
199346°F36°F0.91"0"
199244°F32°F1.14"0"
199139°F29°F0.18"1.5"
199041°F18°F0"0"
198943°F33°F0"0"
198843°F33°F0.18"0"
198748°F26°F0"0"
198642°F34°F0.86"0"
198543°F29°F0.3"0"
198447°F29°F0"0"
198341°F20°F0"0"
198239°F36°F0.05"0"
198149°F29°F0"0"
198045°F33°F1.17"0"
197945°F30°F0"0"
197842°F31°F0.33"0"
197740°F34°F0.41"0"
197645°F32°F0.1"0"
197545°F17°F0"0"
197443°F29°F0"0"
197337°F28°F0.13"0.2"
197243°F26°F0"0"
197132°F16°F0"0"

March 21 at Nearby Parks

Holiday Weather at Glacier Bay

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

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