Weather on May 31
Lancaster, CA
55 Years of Data
Avg High
87°F
Avg Low
57°F
Warmest
2016
86°F avg
Coldest
1971
54°F avg
About This Date
May 31st in Lancaster, CA typically brings warm spring weather, with average highs around 87°F and lows near 57°F — a 30°F daily swing. Over 55 years of records, the warmest May 31st was in 2016 (86°F average), while the coldest was 1971 (54°F) — a 32°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in Lancaster, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 59° | 79° | — | — |
| 2024 | 95° | 51° | 73° | — | — |
| 2023 | 75° | 53° | 64° | — | — |
| 2022 | 85° | 58° | 71° | — | — |
| 2021 | 101° | 65° | 83° | — | — |
| 2020 | 87° | 49° | 68° | — | — |
| 2019 | 85° | 52° | 68° | — | — |
| 2018 | 74° | 55° | 64° | — | — |
| 2017 | 77° | 62° | 70° | — | — |
| 2016warmest | 100° | 72° | 86° | — | — |
| 2015 | 93° | 56° | 74° | — | — |
| 2014 | 89° | 56° | 72° | — | — |
| 2013 | 98° | 64° | 81° | — | — |
| 2012 | 103° | 66° | 84° | — | — |
| 2011 | 81° | 43° | 62° | — | — |
| 2010 | 88° | 59° | 73° | — | — |
| 2009 | 94° | 62° | 78° | — | — |
| 2008 | 82° | 61° | 71° | — | — |
| 2007 | 91° | 60° | 76° | — | — |
| 2006 | 95° | 50° | 73° | — | — |
| 2005 | 93° | 51° | 72° | — | — |
| 2004 | 100° | 64° | 82° | — | — |
| 2003 | 94° | 59° | 76° | — | — |
| 2002 | 95° | 65° | 80° | — | — |
| 2001 | 104° | 61° | 82° | — | — |
| 2000 | 88° | 62° | 75° | — | — |
| 1999 | 81° | 51° | 66° | — | — |
| 1998 | 78° | 51° | 65° | — | — |
| 1997 | 93° | 69° | 81° | — | — |
| 1996 | 88° | 59° | 73° | — | — |
| 1995 | 91° | 56° | 73° | — | — |
| 1994 | 86° | 55° | 71° | — | — |
| 1993 | 77° | 62° | 70° | — | — |
| 1992 | 93° | 58° | 75° | — | — |
| 1991 | 76° | 51° | 63° | — | — |
| 1990 | 68° | 51° | 60° | — | — |
| 1989 | 83° | 43° | 63° | — | — |
| 1988 | 80° | 51° | 66° | — | — |
| 1987 | 89° | 62° | 76° | — | — |
| 1986 | 93° | 73° | 83° | — | — |
| 1985 | 69° | 52° | 60° | — | — |
| 1984 | 91° | 69° | 80° | — | — |
| 1983 | 73° | 56° | 64° | — | — |
| 1982 | 75° | 53° | 64° | — | — |
| 1981 | 89° | 60° | 75° | — | — |
| 1980 | 63° | 50° | 56° | — | — |
| 1979 | 88° | 52° | 70° | — | — |
| 1978 | 91° | 60° | 76° | — | — |
| 1977 | 95° | 56° | 75° | — | — |
| 1976 | 81° | 56° | 68° | — | — |
| 1975 | 95° | 68° | 82° | — | — |
| 1974 | 82° | 54° | 68° | — | — |
| 1973 | 80° | 55° | 68° | — | — |
| 1972 | 95° | 63° | 79° | — | — |
| 1971coldest | 66° | 41° | 54° | — | — |
55 years of data from LANCASTER