Weather on October 21
Lancaster, CA
55 Years of Data
Avg High
78°F
Avg Low
45°F
Warmest
2001
74°F avg
Coldest
1996
47°F avg
About This Date
October 21st in Lancaster, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 45°F — a 33°F daily swing. Over 55 years of records, the warmest October 21st was in 2001 (74°F average), while the coldest was 1996 (47°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 4% of October 21st dates historically. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Lancaster, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 41° | 62° | — | — |
| 2024 | 84° | 43° | 63° | — | — |
| 2023 | 88° | 50° | 69° | — | — |
| 2022 | 88° | 48° | 68° | — | — |
| 2021 | 77° | 37° | 57° | — | — |
| 2020 | 91° | 44° | 68° | — | — |
| 2019 | 83° | 40° | 61° | — | — |
| 2018 | 81° | 44° | 62° | — | — |
| 2017 | 73° | 41° | 57° | — | — |
| 2016 | 85° | 39° | 62° | — | — |
| 2015 | 78° | 47° | 62° | — | — |
| 2014 | 76° | 53° | 64° | — | — |
| 2013 | 83° | 36° | 59° | — | — |
| 2012 | 73° | 58° | 65° | — | — |
| 2011 | 86° | 46° | 66° | — | — |
| 2010 | 70° | 55° | 62° | — | — |
| 2009 | 78° | 37° | 58° | — | — |
| 2008 | 85° | 44° | 64° | — | — |
| 2007 | 69° | 38° | 53° | — | — |
| 2006 | 82° | 39° | 61° | — | — |
| 2005 | 78° | 47° | 62° | — | — |
| 2004 | 61° | 40° | 50° | — | — |
| 2003 | 93° | 46° | 70° | — | — |
| 2002 | 77° | 45° | 61° | — | — |
| 2001warmest | 84° | 64° | 74° | — | — |
| 2000 | 68° | 57° | 63° | — | — |
| 1999 | 84° | 35° | 60° | — | — |
| 1998 | 78° | 39° | 59° | — | — |
| 1997 | 76° | 40° | 58° | — | — |
| 1996coldest | 61° | 34° | 47° | — | — |
| 1995 | 85° | 60° | 72° | — | — |
| 1994 | 78° | 39° | 59° | — | — |
| 1993 | 72° | 41° | 56° | — | — |
| 1992 | 64° | 57° | 61° | 0.08" | — |
| 1991 | 85° | 48° | 66° | — | — |
| 1990 | 72° | 34° | 53° | — | — |
| 1989 | 65° | 52° | 58° | — | — |
| 1988 | 90° | 47° | 68° | — | — |
| 1987 | 80° | 56° | 68° | — | — |
| 1986 | 74° | 37° | 55° | — | — |
| 1985 | 62° | 45° | 53° | 0.25" | — |
| 1984 | 66° | 45° | 55° | — | — |
| 1983 | 83° | 44° | 63° | — | — |
| 1982 | 77° | 42° | 60° | — | — |
| 1981 | 80° | 43° | 61° | — | — |
| 1980 | 81° | 38° | 59° | — | — |
| 1979 | 66° | 44° | 55° | — | — |
| 1978 | 78° | 52° | 65° | — | — |
| 1977 | 74° | 54° | 64° | — | — |
| 1976 | 77° | 54° | 65° | — | — |
| 1975 | 84° | 46° | 65° | — | — |
| 1974 | 85° | 46° | 65° | — | — |
| 1973 | 78° | 50° | 64° | — | — |
| 1972 | 77° | 38° | 57° | — | — |
| 1971 | 75° | 35° | 55° | — | — |
55 years of data from LANCASTER