Weather on May 21 at Lake Clark
Lake Clark National Park and Preserve
AKAlaska200 ft elevation
Avg High59°F
Avg Low42°F
Warmest200263°F
Coldest197239°F
Based on 32 years of data from Anchorage, AK
Planning Your Visit
May 21st in Lake Clark National Park (via Anchorage, AK) typically brings cool spring weather, with average highs around 59°F and lows near 42°F. Over 32 years of records, the warmest May 21st was in 2002 (63°F average), while the coldest was 1972 (39°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 25% of May 21st dates historically. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for May 21st in Lake Clark? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 57°F | 41°F | 0.03" | -- |
| 2025 | 56°F | 44°F | 0" | -- |
| 2024 | 50°F | 42°F | 0.15" | -- |
| 2023 | 61°F | 43°F | 0" | -- |
| 2022 | 70°F | 42°F | 0" | -- |
| 2021 | 56°F | 44°F | 0.03" | -- |
| 2020 | 60°F | 46°F | 0" | -- |
| 2019 | 61°F | 43°F | 0" | -- |
| 2018 | 61°F | 43°F | 0" | -- |
| 2017 | 50°F | 44°F | 0.08" | -- |
| 2016 | 53°F | 46°F | 0.1" | -- |
| 2015 | 61°F | 43°F | 0" | -- |
| 2014 | 65°F | 40°F | 0" | -- |
| 2013 | 53°F | 33°F | 0" | -- |
| 2012 | 63°F | 46°F | 0" | -- |
| 2011 | 66°F | 42°F | 0" | -- |
| 2010 | 67°F | 42°F | 0" | -- |
| 2009 | 61°F | 43°F | 0" | -- |
| 2008 | 58°F | 40°F | 0" | -- |
| 2007 | 60°F | 39°F | 0" | -- |
| 2006 | 58°F | 44°F | 0" | -- |
| 2005 | 54°F | 49°F | 0.25" | -- |
| 2004 | 67°F | 44°F | 0" | -- |
| 2003 | 64°F | 38°F | 0" | -- |
| 2002 | 78°F | 49°F | 0" | 0" |
| 2001 | 59°F | 44°F | 0" | 0" |
| 2000 | 55°F | 37°F | 0" | -- |
| 1999 | 63°F | 40°F | 0.03" | 0" |
| 1998 | 54°F | 40°F | 0" | 0" |
| 1973 | 56°F | 36°F | 0" | 0" |
| 1972 | 46°F | 32°F | 0.13" | 0" |
| 1971 | 48°F | 36°F | 0" | 0" |
May 21 at Nearby Parks
Holiday Weather at Lake Clark
Official NPS WebsiteVisit nps.gov/lacl for park information, alerts, and reservations
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