Weather on December 21 at Katmai
Katmai National Park and Preserve
Based on 31 years of data from Anchorage, AK
Planning Your Visit
December 21st in Katmai National Park (via 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 21st was in 1999 (34°F average), while the coldest was 2012 (-2°F) — a 36°F range across recorded history. Precipitation has occurred on 19% of recorded December 21st dates, with snow falling 3% of the time (heaviest snowfall: 2.5"). The last decade has been 8.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 8.1°F cooler on this date compared to 20-30 years ago.
Planning for December 21st in Katmai? Bundle up with warm layers and protect extremities from the cold.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 13°F | -11°F | 0" | -- |
| 2024 | 33°F | 23°F | 0" | -- |
| 2023 | 23°F | 11°F | 0" | -- |
| 2022 | 13°F | -10°F | 0" | -- |
| 2021 | 20°F | 2°F | 0" | -- |
| 2020 | 29°F | 22°F | 0" | -- |
| 2019 | 11°F | -1°F | 0" | -- |
| 2018 | 19°F | 12°F | 0" | -- |
| 2017 | 20°F | 9°F | 0" | -- |
| 2016 | 18°F | 5°F | 0" | -- |
| 2015 | 21°F | 10°F | 0" | -- |
| 2014 | 27°F | 17°F | 0.08" | -- |
| 2013 | 30°F | 24°F | 0.03" | -- |
| 2012 | 7°F | -12°F | 0" | -- |
| 2011 | 37°F | 16°F | 0.08" | -- |
| 2010 | 14°F | -2°F | 0" | -- |
| 2009 | 28°F | 19°F | 0" | -- |
| 2008 | 16°F | 1°F | 0" | -- |
| 2007 | 20°F | 6°F | 0" | -- |
| 2006 | 24°F | 9°F | 0.46" | -- |
| 2005 | 30°F | 18°F | 0" | -- |
| 2004 | 26°F | 15°F | 0" | -- |
| 2003 | 26°F | 9°F | 0.48" | -- |
| 2002 | 24°F | 15°F | 0" | -- |
| 2001 | 40°F | 20°F | 0" | 0" |
| 2000 | 43°F | 11°F | 0" | 0" |
| 1999 | 44°F | 24°F | 0.53" | 2.5" |
| 1998 | 22°F | 10°F | 0" | 0" |
| 1997 | 13°F | -4°F | -- | -- |
| 1972 | 14°F | -2°F | 0" | 0" |
| 1971 | 23°F | -15°F | 0" | 0" |