Weather on August 21
Palmdale, CA
55 Years of Data
Avg High
82°F
Avg Low
63°F
Warmest
2020
83°F avg
Coldest
2023
60°F avg
About This Date
August 21st in Palmdale, CA typically brings warm summer weather, with average highs around 82°F and lows near 63°F. Over 39 years of records, the warmest August 21st was in 2020 (83°F average), while the coldest was 2023 (60°F) — a 23°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for August 21st in Palmdale, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 74° | 83° | — | — |
| 2024 | 84° | 63° | 73° | — | — |
| 2023coldest | 70° | 51° | 60° | — | — |
| 2022 | 86° | 71° | 79° | — | — |
| 2021 | 74° | 58° | 66° | — | — |
| 2020warmest | 93° | 73° | 83° | — | — |
| 2019 | 90° | 69° | 79° | — | — |
| 2018 | 79° | 65° | 72° | — | — |
| 2017 | 79° | 63° | 71° | — | — |
| 2016 | 79° | 66° | 72° | — | — |
| 2015 | 80° | 63° | 71° | — | — |
| 2014 | 79° | 58° | 68° | — | — |
| 2013 | 85° | 69° | 77° | — | — |
| 2012 | 80° | 66° | 73° | — | — |
| 2011 | 81° | 59° | 70° | — | — |
| 2010 | 81° | 69° | 75° | — | — |
| 2009 | 91° | 66° | 79° | — | — |
| 2008 | 81° | 61° | 71° | — | — |
| 2007 | 89° | 68° | 79° | — | — |
| 2006 | 88° | 67° | 77° | — | — |
| 2005 | 86° | 66° | 76° | — | — |
| 2004 | 80° | 57° | 69° | — | — |
| 2003 | 75° | 62° | 69° | — | — |
| 2002 | 73° | 55° | 64° | — | — |
| 2001 | 75° | 57° | 66° | — | — |
| 2000 | 77° | 61° | 69° | — | — |
| 1999 | 84° | 68° | 76° | — | — |
| 1998 | 83° | 67° | 75° | — | — |
| 1997 | 83° | 63° | 73° | — | — |
| 1996 | 83° | 63° | 73° | — | — |
| 1995 | 76° | 63° | 69° | — | — |
| 1994 | 77° | 58° | 68° | — | — |
| 1993 | 92° | 63° | 77° | — | — |
| 1992 | 89° | 65° | 77° | — | — |
| 1991 | 92° | 65° | 79° | — | — |
| 1990 | 72° | 53° | 63° | — | — |
| 1989 | 73° | 54° | 63° | — | — |
| 1987 | 75° | 61° | 68° | — | — |
| 1986 | 84° | 66° | 75° | — | — |
39 years of data from MILL CREEK (ANF) CALIFORNIA