Weather on December 31
Lancaster, CA
55 Years of Data
Avg High
55°F
Avg Low
29°F
Warmest
1995
57°F avg
Coldest
1990
29°F avg
About This Date
December 31st in Lancaster, CA typically brings cool winter weather, with average highs around 55°F and lows near 29°F — a 26°F daily swing. Over 55 years of records, the warmest December 31st was in 1995 (57°F average), while the coldest was 1990 (29°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 31st dates historically, with the wettest December 31st recording 1.35" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Lancaster, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 49° | 43° | 46° | 0.41" | — |
| 2024 | 60° | 24° | 42° | — | — |
| 2023 | 50° | 33° | 42° | — | — |
| 2022 | 58° | 51° | 54° | 1.35" | — |
| 2021 | 51° | 33° | 42° | — | — |
| 2020 | 54° | 29° | 42° | — | — |
| 2019 | 56° | 29° | 43° | — | — |
| 2018 | 50° | 28° | 39° | — | — |
| 2017 | 72° | 33° | 52° | — | — |
| 2016 | 54° | 37° | 45° | 0.23" | — |
| 2015 | 50° | 16° | 33° | — | — |
| 2014 | 44° | 20° | 32° | — | — |
| 2013 | 62° | 22° | 42° | — | — |
| 2012 | 49° | 16° | 32° | — | — |
| 2011 | 68° | 25° | 46° | — | — |
| 2010 | 43° | 24° | 33° | — | — |
| 2009 | 55° | 26° | 41° | — | — |
| 2008 | 59° | 27° | 43° | — | — |
| 2007 | 57° | 23° | 40° | — | — |
| 2006 | 63° | 28° | 45° | — | — |
| 2005 | 55° | 43° | 49° | 0.13" | — |
| 2004 | 52° | 41° | 46° | 0.36" | — |
| 2003 | 56° | 24° | 40° | — | — |
| 2002 | 55° | 34° | 44° | — | — |
| 2001 | 65° | 44° | 54° | — | — |
| 2000 | 61° | 20° | 40° | — | — |
| 1999 | 54° | 30° | 42° | — | — |
| 1998 | 63° | 34° | 48° | — | — |
| 1997 | 65° | 34° | 49° | — | — |
| 1996 | 65° | 49° | 57° | — | — |
| 1995warmest | 68° | 46° | 57° | — | — |
| 1994 | 49° | 29° | 39° | — | — |
| 1993 | 56° | 22° | 39° | — | — |
| 1992 | 49° | 29° | 39° | — | — |
| 1991 | 50° | 30° | 40° | — | — |
| 1990coldest | 47° | 11° | 29° | — | — |
| 1989 | 64° | 21° | 43° | — | — |
| 1988 | 44° | 35° | 40° | 0.97" | — |
| 1987 | 46° | 23° | 35° | — | — |
| 1986 | 61° | 22° | 41° | — | — |
| 1985 | 64° | 40° | 52° | — | — |
| 1984 | 42° | 20° | 31° | — | — |
| 1983 | 60° | 39° | 50° | — | — |
| 1982 | 50° | 22° | 36° | — | — |
| 1981 | 54° | 45° | 49° | — | — |
| 1980 | 69° | 28° | 49° | — | — |
| 1979 | 60° | 35° | 48° | — | — |
| 1978 | 49° | 18° | 33° | — | — |
| 1977 | 52° | 40° | 46° | — | — |
| 1976 | 48° | 34° | 41° | — | — |
| 1975 | 46° | 20° | 33° | — | — |
| 1974 | 48° | 28° | 38° | — | — |
| 1973 | 65° | 25° | 45° | — | — |
| 1972 | 52° | 19° | 35° | — | — |
| 1971 | 48° | 17° | 33° | — | — |
55 years of data from LANCASTER