Weather on September 12
Lancaster, CA
55 Years of Data
Avg High
91°F
Avg Low
57°F
Warmest
1979
84°F avg
Coldest
1985
59°F avg
About This Date
September 12th in Lancaster, CA typically brings hot fall weather, with average highs around 91°F and lows near 57°F — a 34°F daily swing. Over 55 years of records, the warmest September 12th was in 1979 (84°F average), while the coldest was 1985 (59°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for September 12th in Lancaster, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 61° | 72° | — | — |
| 2024 | 91° | 55° | 73° | — | — |
| 2023 | 91° | 68° | 80° | — | — |
| 2022 | 86° | 67° | 76° | — | — |
| 2021 | 97° | 61° | 79° | — | — |
| 2020 | 93° | 46° | 70° | — | — |
| 2019 | 95° | 47° | 71° | — | — |
| 2018 | 91° | 66° | 79° | — | — |
| 2017 | 93° | 64° | 79° | — | — |
| 2016 | 84° | 59° | 72° | — | — |
| 2015 | 98° | 69° | 84° | — | — |
| 2014 | 99° | 58° | 78° | — | — |
| 2013 | 94° | 59° | 76° | — | — |
| 2012 | 95° | 59° | 77° | — | — |
| 2011 | 91° | 50° | 71° | — | — |
| 2010 | 94° | 50° | 72° | — | — |
| 2009 | 95° | 64° | 80° | — | — |
| 2008 | 97° | 61° | 79° | — | — |
| 2007 | 98° | 52° | 75° | — | — |
| 2006 | 101° | 57° | 79° | — | — |
| 2005 | 81° | 46° | 63° | — | — |
| 2004 | 97° | 61° | 79° | — | — |
| 2003 | 100° | 55° | 78° | — | — |
| 2002 | 96° | 57° | 77° | — | — |
| 2001 | 88° | 64° | 76° | — | — |
| 2000 | 98° | 54° | 76° | — | — |
| 1999 | 96° | 54° | 75° | — | — |
| 1998 | 88° | 49° | 68° | — | — |
| 1997 | 89° | 56° | 72° | — | — |
| 1996 | 86° | 55° | 71° | — | — |
| 1995 | 100° | 58° | 79° | — | — |
| 1994 | 73° | 55° | 64° | — | — |
| 1993 | 87° | 65° | 76° | — | — |
| 1992 | 89° | 62° | 76° | — | — |
| 1991 | 88° | 53° | 70° | — | — |
| 1990 | 98° | 61° | 79° | — | — |
| 1989 | 92° | 57° | 74° | — | — |
| 1988 | 84° | 49° | 66° | — | — |
| 1987 | 75° | 57° | 66° | — | — |
| 1986 | 79° | 59° | 69° | — | — |
| 1985coldest | 79° | 40° | 59° | — | — |
| 1984 | 85° | 61° | 73° | — | — |
| 1983 | 104° | 64° | 84° | — | — |
| 1982 | 82° | 52° | 67° | — | — |
| 1981 | 94° | 60° | 77° | — | — |
| 1980 | 89° | 55° | 72° | — | — |
| 1979warmest | 103° | 66° | 84° | — | — |
| 1978 | 84° | 50° | 67° | — | — |
| 1977 | 89° | 60° | 75° | — | — |
| 1976 | 80° | 59° | 70° | — | — |
| 1975 | 88° | 57° | 72° | — | — |
| 1974 | 88° | 58° | 73° | — | — |
| 1973 | 97° | 57° | 77° | — | — |
| 1972 | 81° | 42° | 61° | — | — |
| 1971 | 103° | 64° | 83° | — | — |
55 years of data from LANCASTER