Weather on March 21
Lancaster, CA
55 Years of Data
Avg High
68°F
Avg Low
41°F
Warmest
2026
69°F avg
Coldest
1973
39°F avg
About This Date
March 21st in Lancaster, CA typically brings mild spring weather, with average highs around 68°F and lows near 41°F — a 27°F daily swing. Over 56 years of records, the warmest March 21st was in 2026 (69°F average), while the coldest was 1973 (39°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 16% of March 21st dates historically, with the wettest March 21st recording 1.7" of rain. 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 March 21st in Lancaster, CA? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 90° | 49° | 69° | — | — |
| 2025 | 75° | 43° | 59° | — | — |
| 2024 | 75° | 50° | 63° | — | — |
| 2023 | 54° | 40° | 47° | 1.7" | — |
| 2022 | 74° | 41° | 57° | — | — |
| 2021 | 64° | 36° | 50° | — | — |
| 2020 | 59° | 45° | 52° | — | — |
| 2019 | 57° | 41° | 49° | — | — |
| 2018 | 59° | 45° | 52° | 1.07" | — |
| 2017 | 62° | 51° | 57° | — | — |
| 2016 | 69° | 51° | 60° | — | — |
| 2015 | 78° | 50° | 64° | — | — |
| 2014 | 72° | 48° | 60° | — | — |
| 2013 | 74° | 51° | 62° | — | — |
| 2012 | 78° | 36° | 57° | — | — |
| 2011 | 52° | 36° | 44° | 0.23" | — |
| 2010 | 75° | 36° | 55° | — | — |
| 2009 | 62° | 47° | 54° | — | — |
| 2008 | 76° | 46° | 61° | — | — |
| 2007 | 64° | 40° | 52° | — | — |
| 2006 | 53° | 36° | 44° | 0.03" | — |
| 2005 | 69° | 43° | 56° | — | — |
| 2004 | 90° | 43° | 66° | — | — |
| 2003 | 70° | 45° | 57° | — | — |
| 2002 | 79° | 38° | 58° | — | — |
| 2001 | 78° | 48° | 63° | — | — |
| 2000 | 65° | 34° | 49° | — | — |
| 1999 | 65° | 34° | 49° | — | — |
| 1998 | 74° | 40° | 57° | — | — |
| 1997 | 82° | 33° | 58° | — | — |
| 1996 | 79° | 49° | 64° | — | — |
| 1995 | 57° | 40° | 48° | 1.57" | — |
| 1994 | 69° | 41° | 55° | — | — |
| 1993 | 76° | 42° | 59° | — | — |
| 1992 | 58° | 45° | 51° | 0.43" | — |
| 1991 | 50° | 37° | 44° | — | — |
| 1990 | 86° | 44° | 65° | — | — |
| 1989 | 75° | 31° | 53° | — | — |
| 1988 | 77° | 39° | 58° | — | — |
| 1987 | 46° | 34° | 40° | 0.36" | — |
| 1986 | 73° | 35° | 54° | — | — |
| 1985 | 61° | 48° | 54° | — | — |
| 1984 | 63° | 50° | 56° | — | — |
| 1983 | 53° | 37° | 45° | 0.89" | — |
| 1982 | 61° | 30° | 45° | — | — |
| 1981 | 61° | 43° | 52° | — | — |
| 1980 | 53° | 39° | 46° | — | — |
| 1979 | 57° | 40° | 48° | — | — |
| 1978 | 61° | 51° | 56° | 0.13" | — |
| 1977 | 72° | 33° | 52° | — | — |
| 1976 | 73° | 28° | 51° | — | — |
| 1975 | 57° | 42° | 50° | — | — |
| 1974 | 69° | 45° | 57° | — | — |
| 1973coldest | 49° | 29° | 39° | — | — |
| 1972 | 83° | 40° | 61° | — | — |
| 1971 | 80° | 39° | 60° | — | — |
56 years of data from LANCASTER