Weather on September 4
Lancaster, CA
55 Years of Data
Avg High
95°F
Avg Low
61°F
Warmest
2009
87°F avg
Coldest
1985
60°F avg
About This Date
September 4th in Lancaster, CA typically brings hot fall weather, with average highs around 95°F and lows near 61°F — a 34°F daily swing. Over 55 years of records, the warmest September 4th was in 2009 (87°F average), while the coldest was 1985 (60°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 7% of September 4th dates historically, with the wettest September 4th recording 1.78" of rain. The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
Planning for September 4th in Lancaster, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 65° | 81° | — | — |
| 2024 | 103° | 64° | 83° | — | — |
| 2023 | 86° | 59° | 73° | — | — |
| 2022 | 106° | 69° | 87° | 0.13" | — |
| 2021 | 97° | 51° | 74° | — | — |
| 2020 | 108° | 62° | 85° | — | — |
| 2019 | 102° | 66° | 84° | — | — |
| 2018 | 96° | 62° | 79° | — | — |
| 2017 | 96° | 72° | 84° | — | — |
| 2016 | 81° | 57° | 69° | — | — |
| 2015 | 84° | 56° | 70° | — | — |
| 2014 | 94° | 67° | 80° | — | — |
| 2013 | 102° | 66° | 84° | — | — |
| 2012 | 99° | 71° | 85° | — | — |
| 2011 | 100° | 57° | 79° | — | — |
| 2010 | 103° | 61° | 82° | — | — |
| 2009warmest | 102° | 72° | 87° | — | — |
| 2008 | 99° | 56° | 77° | — | — |
| 2007 | 97° | 73° | 85° | — | — |
| 2006 | 102° | 62° | 82° | — | — |
| 2005 | 92° | 51° | 71° | — | — |
| 2004 | 87° | 47° | 67° | — | — |
| 2003 | 100° | 66° | 83° | — | — |
| 2002 | 101° | 65° | 83° | — | — |
| 2001 | 98° | 60° | 79° | — | — |
| 2000 | 84° | 57° | 71° | — | — |
| 1999 | 90° | 50° | 70° | — | — |
| 1998 | 69° | 66° | 68° | 1.78" | — |
| 1997 | 92° | 64° | 78° | — | — |
| 1996 | 91° | 70° | 80° | — | — |
| 1995 | 97° | 64° | 80° | — | — |
| 1994 | 94° | 50° | 72° | — | — |
| 1993 | 94° | 60° | 77° | — | — |
| 1992 | 84° | 56° | 70° | — | — |
| 1991 | 97° | 67° | 82° | — | — |
| 1990 | 93° | 58° | 75° | — | — |
| 1989 | 98° | 49° | 73° | — | — |
| 1988 | 102° | 65° | 83° | — | — |
| 1987 | 93° | 66° | 80° | — | — |
| 1986 | 103° | 62° | 82° | — | — |
| 1985coldest | 64° | 55° | 60° | 0.03" | — |
| 1984 | 98° | 66° | 82° | 0.03" | — |
| 1983 | 96° | 54° | 75° | — | — |
| 1982 | 98° | 65° | 81° | — | — |
| 1981 | 95° | 62° | 79° | — | — |
| 1980 | 95° | 53° | 74° | — | — |
| 1979 | 94° | 68° | 81° | — | — |
| 1978 | 89° | 72° | 80° | — | — |
| 1977 | 97° | 55° | 76° | — | — |
| 1976 | 93° | 66° | 80° | — | — |
| 1975 | 101° | 61° | 81° | — | — |
| 1974 | 101° | 65° | 83° | — | — |
| 1973 | 91° | 55° | 73° | — | — |
| 1972 | 92° | 60° | 76° | — | — |
| 1971 | 94° | 54° | 74° | — | — |
55 years of data from LANCASTER