Weather on December 18
Lancaster, CA
55 Years of Data
Avg High
57°F
Avg Low
29°F
Warmest
2025
58°F avg
Coldest
1984
32°F avg
About This Date
December 18th in Lancaster, CA typically brings cool winter weather, with average highs around 57°F and lows near 29°F — a 28°F daily swing. Over 55 years of records, the warmest December 18th was in 2025 (58°F average), while the coldest was 1984 (32°F) — a 26°F range across recorded history. Precipitation has occurred on 13% of recorded December 18th dates, with snow falling 2% of the time (heaviest snowfall: 12"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 18th in Lancaster, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 75° | 41° | 58° | — | — |
| 2024 | 71° | 30° | 51° | — | — |
| 2023 | 69° | 39° | 54° | — | — |
| 2022 | 52° | 20° | 36° | — | — |
| 2021 | 53° | 23° | 38° | — | — |
| 2020 | 60° | 24° | 42° | — | — |
| 2019 | 48° | 24° | 36° | — | — |
| 2018 | 63° | 36° | 49° | — | — |
| 2017 | 59° | 18° | 39° | — | — |
| 2016 | 51° | 16° | 34° | — | — |
| 2015 | 55° | 22° | 39° | — | — |
| 2014 | 54° | 32° | 43° | — | — |
| 2013 | 59° | 39° | 49° | — | — |
| 2012 | 50° | 36° | 43° | — | — |
| 2011 | 61° | 33° | 47° | — | — |
| 2010 | 54° | 51° | 52° | 0.69" | — |
| 2009 | 64° | 29° | 46° | — | — |
| 2008 | 44° | 25° | 34° | — | — |
| 2007 | 55° | 44° | 50° | 0.03" | — |
| 2006 | 49° | 18° | 33° | — | — |
| 2005 | 57° | 39° | 48° | — | — |
| 2004 | 65° | 20° | 42° | — | — |
| 2003 | 63° | 23° | 43° | — | — |
| 2002 | 49° | 27° | 38° | — | — |
| 2001 | 56° | 22° | 39° | — | — |
| 2000 | 58° | 21° | 39° | — | — |
| 1999 | 73° | 30° | 52° | — | — |
| 1998 | 64° | 45° | 54° | — | — |
| 1997 | 50° | 38° | 44° | 0.13" | — |
| 1996 | 58° | 27° | 42° | — | — |
| 1995 | 53° | 17° | 35° | — | — |
| 1994 | 67° | 22° | 44° | — | — |
| 1993 | 48° | 25° | 36° | 0.28" | — |
| 1992 | 45° | 25° | 35° | — | — |
| 1991 | 61° | 42° | 51° | — | — |
| 1990 | 63° | 20° | 41° | — | — |
| 1989 | 57° | 36° | 46° | — | — |
| 1988 | 49° | 34° | 41° | — | — |
| 1987 | 46° | 25° | 35° | — | — |
| 1986 | 61° | 31° | 46° | — | — |
| 1985 | 65° | 25° | 45° | — | — |
| 1984coldest | 35° | 28° | 32° | 3.91" | 12" |
| 1983 | 61° | 29° | 45° | — | — |
| 1982 | 59° | 33° | 46° | — | — |
| 1981 | 56° | 31° | 43° | — | — |
| 1980 | 73° | 33° | 53° | — | — |
| 1979 | 67° | 23° | 45° | — | — |
| 1978 | 46° | 35° | 41° | 1.5" | — |
| 1977 | 53° | 43° | 48° | 0.1" | — |
| 1976 | 60° | 23° | 42° | — | — |
| 1975 | 62° | 19° | 41° | — | — |
| 1974 | 60° | 25° | 42° | — | — |
| 1973 | 60° | 28° | 44° | — | — |
| 1972 | 57° | 29° | 43° | — | — |
| 1971 | 54° | 27° | 40° | — | — |
55 years of data from LANCASTER