Weather on March 21
Palmdale, CA
55 Years of Data
Avg High
59°F
Avg Low
42°F
Warmest
1994
73°F avg
Coldest
1987
25°F avg
About This Date
March 21st in Palmdale, CA typically brings cool spring weather, with average highs around 59°F and lows near 42°F. Over 39 years of records, the warmest March 21st was in 1994 (73°F average), while the coldest was 1987 (25°F) — a 48°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.1°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Palmdale, CA? Bring layers as temperatures can vary throughout the day.
Cooling Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 75° | 62° | 69° | — | — |
| 2025 | 69° | 45° | 57° | — | — |
| 2024 | 60° | 46° | 53° | — | — |
| 2023 | 38° | 31° | 34° | — | — |
| 2022 | 63° | 42° | 52° | — | — |
| 2021 | 51° | 32° | 42° | — | — |
| 2020 | 48° | 34° | 41° | — | — |
| 2019 | 43° | 34° | 38° | — | — |
| 2018 | 54° | 44° | 49° | — | — |
| 2017 | 49° | 42° | 45° | — | — |
| 2016 | 55° | 42° | 49° | — | — |
| 2015 | 64° | 49° | 56° | — | — |
| 2014 | 59° | 44° | 52° | — | — |
| 2013 | 69° | 43° | 56° | — | — |
| 2012 | 67° | 43° | 55° | — | — |
| 2011 | 36° | 28° | 32° | — | — |
| 2010 | 68° | 46° | 57° | — | — |
| 2009 | 56° | 39° | 47° | — | — |
| 2008 | 76° | 40° | 58° | — | — |
| 2007 | 47° | 35° | 41° | — | — |
| 2006 | 42° | 26° | 34° | — | — |
| 2005 | 55° | 33° | 44° | — | — |
| 2004 | 79° | 60° | 69° | — | — |
| 2003 | 63° | 38° | 50° | — | — |
| 2002 | 68° | 50° | 59° | — | — |
| 2001 | 68° | 47° | 57° | — | — |
| 2000 | 55° | 34° | 44° | — | — |
| 1999 | 55° | 32° | 44° | — | — |
| 1998 | 61° | 56° | 58° | — | — |
| 1997 | 69° | 53° | 61° | — | — |
| 1996 | 63° | 48° | 56° | — | — |
| 1995 | 43° | 29° | 36° | — | — |
| 1994warmest | 83° | 63° | 73° | — | — |
| 1993 | 78° | 55° | 67° | — | — |
| 1992 | 44° | 39° | 42° | — | — |
| 1991 | 65° | 53° | 59° | — | — |
| 1990 | 74° | 53° | 64° | — | — |
| 1987coldest | 28° | 21° | 25° | — | — |
| 1986 | 63° | 46° | 54° | — | — |
39 years of data from MILL CREEK (ANF) CALIFORNIA