Weather on September 20
Palmdale, CA
55 Years of Data
About This Date
September 20th in Palmdale, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 53°F — a 25°F daily swing. Over 39 years of records, the warmest September 20th was in 1992 (82°F average), while the coldest was 1993 (32°F) — a 50°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for September 20th in Palmdale, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 80° | 61° | 70° | — | — |
| 2025 | 78° | 57° | 68° | — | — |
| 2024 | 71° | 46° | 59° | — | — |
| 2023 | 63° | 45° | 54° | — | — |
| 2022 | 68° | 49° | 58° | — | — |
| 2021 | 81° | 58° | 69° | — | — |
| 2020 | 82° | 62° | 72° | — | — |
| 2019 | 72° | 50° | 61° | — | — |
| 2018 | 85° | 63° | 74° | — | — |
| 2017 | 67° | 52° | 59° | — | — |
| 2016 | 77° | 59° | 68° | — | — |
| 2015 | 88° | 67° | 77° | — | — |
| 2014 | 79° | 57° | 68° | — | — |
| 2013 | 77° | 54° | 65° | — | — |
| 2012 | 83° | 70° | 76° | — | — |
| 2011 | 86° | 67° | 76° | — | — |
| 2010 | 79° | 61° | 70° | — | — |
| 2009 | 82° | 62° | 72° | — | — |
| 2008 | 71° | 53° | 62° | — | — |
| 2007 | 51° | 39° | 45° | — | — |
| 2006 | 75° | 50° | 63° | — | — |
| 2005 | 67° | 53° | 60° | — | — |
| 2004 | 66° | 39° | 53° | — | — |
| 2003 | 88° | 67° | 77° | — | — |
| 2002 | 85° | 63° | 74° | — | — |
| 2001 | 82° | 60° | 71° | — | — |
| 2000 | 91° | 59° | 75° | — | — |
| 1999 | 83° | 59° | 71° | — | — |
| 1998 | 59° | 48° | 54° | — | — |
| 1997 | 76° | 50° | 63° | — | — |
| 1996 | 78° | 56° | 67° | — | — |
| 1995 | 84° | 66° | 75° | — | — |
| 1994 | 79° | 58° | 69° | — | — |
| 1993coldest | 122° | -58° | 32° | — | — |
| 1992warmest | 95° | 69° | 82° | — | — |
| 1991 | 81° | 61° | 71° | — | — |
| 1990 | 68° | 55° | 61° | — | — |
| 1989 | 67° | 49° | 58° | — | — |
| 1986 | 57° | 39° | 48° | — | — |
Palmdale, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Palmdale, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Palmdale, CA
Most pleasant months in Palmdale, CA: April, May, June, October.
What to expect on September 20th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
September 20th outlook →