Weather on December 21
Palmdale, CA
55 Years of Data
Avg High
53°F
Avg Low
38°F
Warmest
2005
63°F avg
Coldest
1990
19°F avg
About This Date
December 21st in Palmdale, CA typically brings cool winter weather, with average highs around 53°F and lows near 38°F. Over 37 years of records, the warmest December 21st was in 2005 (63°F average), while the coldest was 1990 (19°F) — a 44°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 7.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.5°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Palmdale, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
3.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 52° | 59° | — | — |
| 2024 | 66° | 50° | 58° | — | — |
| 2023 | 49° | 43° | 46° | — | — |
| 2022 | 59° | 43° | 51° | — | — |
| 2021 | 57° | 46° | 52° | — | — |
| 2020 | 68° | 52° | 60° | — | — |
| 2019 | 58° | 46° | 52° | — | — |
| 2018 | 63° | 51° | 57° | — | — |
| 2017 | 40° | 28° | 34° | — | — |
| 2016 | 55° | 36° | 45° | — | — |
| 2015 | 50° | 38° | 44° | — | — |
| 2014 | 58° | 42° | 50° | — | — |
| 2013 | 55° | 39° | 47° | — | — |
| 2012 | 53° | 40° | 46° | — | — |
| 2011 | 56° | 38° | 47° | — | — |
| 2010 | 44° | 35° | 40° | — | — |
| 2009 | 51° | 39° | 45° | — | — |
| 2008 | 55° | 36° | 45° | — | — |
| 2007 | 39° | 27° | 33° | — | — |
| 2006 | 56° | 35° | 45° | — | — |
| 2005warmest | 72° | 55° | 63° | — | — |
| 2004 | 53° | 42° | 48° | — | — |
| 2003 | 54° | 38° | 46° | — | — |
| 2002 | 37° | 33° | 35° | — | — |
| 2001 | 49° | 31° | 40° | — | — |
| 2000 | 65° | 49° | 57° | — | — |
| 1999 | 64° | 43° | 53° | — | — |
| 1998 | 32° | 19° | 26° | — | — |
| 1997 | 37° | 28° | 33° | — | — |
| 1996 | 43° | 33° | 38° | — | — |
| 1995 | 48° | 32° | 40° | — | — |
| 1994 | 56° | 43° | 49° | — | — |
| 1993 | 47° | 33° | 40° | — | — |
| 1992 | 57° | 36° | 46° | — | — |
| 1991 | 64° | 44° | 54° | — | — |
| 1990coldest | 26° | 12° | 19° | — | — |
| 1986 | 49° | 37° | 43° | — | — |
37 years of data from MILL CREEK (ANF) CALIFORNIA