Weather on March 21 at Katmai
Katmai National Park and Preserve
AKAlaska200 ft elevation
Avg High36°F
Avg Low16°F
Warmest201640°F
Coldest19946°F
Based on 36 years of data from Anchorage, AK
Planning Your Visit
March 21st in Katmai National Park (via Anchorage, AK) typically brings cold spring weather, with average highs around 36°F and lows near 16°F. Over 36 years of records, the warmest March 21st was in 2016 (40°F average), while the coldest was 1994 (6°F) — a 34°F range across recorded history. Precipitation has occurred on 8% of recorded March 21st dates, with snow falling 3% of the time. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 21st in Katmai? Bundle up with warm layers and protect extremities from the cold.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 28°F | -1°F | 0" | -- |
| 2025 | 45°F | 22°F | 0" | -- |
| 2024 | 41°F | 26°F | 0" | -- |
| 2023 | 38°F | 27°F | 0" | -- |
| 2022 | 38°F | 17°F | 0" | -- |
| 2021 | 26°F | -1°F | 0" | -- |
| 2020 | 35°F | 26°F | 0" | -- |
| 2019 | 41°F | 31°F | 0" | -- |
| 2018 | 36°F | 20°F | 0" | -- |
| 2017 | 31°F | 6°F | 0" | -- |
| 2016 | 49°F | 30°F | 0" | -- |
| 2015 | 44°F | 23°F | 0" | -- |
| 2014 | 38°F | 21°F | 0" | -- |
| 2013 | 27°F | 3°F | 0" | -- |
| 2012 | 28°F | -1°F | 0" | -- |
| 2011 | 40°F | 25°F | 0" | -- |
| 2010 | 37°F | 17°F | 0" | -- |
| 2009 | 24°F | 0°F | 0.36" | -- |
| 2008 | 44°F | 25°F | 0" | -- |
| 2007 | 29°F | 20°F | 0.08" | -- |
| 2006 | 45°F | 27°F | 0" | -- |
| 2005 | 31°F | 23°F | 0" | -- |
| 2004 | 39°F | 6°F | 0" | 0" |
| 2003 | 25°F | 15°F | 0.1" | 0.5" |
| 2002 | 38°F | 8°F | 0" | 0" |
| 2001 | 29°F | 15°F | 0" | 0" |
| 2000 | 43°F | 31°F | 0" | 0" |
| 1999 | 43°F | 20°F | 0" | 0" |
| 1998 | 47°F | 28°F | -- | -- |
| 1997 | 40°F | 18°F | 0" | 0" |
| 1996 | 46°F | 13°F | 0" | 0" |
| 1995 | 24°F | 3°F | 0" | 0" |
| 1994 | 20°F | -8°F | 0" | 0" |
| 1973 | 35°F | 15°F | 0" | 0" |
| 1972 | 38°F | 27°F | 0" | 0" |
| 1971 | 34°F | 6°F | 0" | 0" |
March 21 at Nearby Parks
Holiday Weather at Katmai
Official NPS WebsiteVisit nps.gov/katm for park information, alerts, and reservations
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