Weather on December 17
Lancaster, CA
55 Years of Data
Avg High
58°F
Avg Low
30°F
Warmest
2025
60°F avg
Coldest
1984
32°F avg
About This Date
December 17th in Lancaster, CA typically brings cool winter weather, with average highs around 58°F and lows near 30°F — a 28°F daily swing. Over 55 years of records, the warmest December 17th was in 2025 (60°F average), while the coldest was 1984 (32°F) — a 28°F range across recorded history. Precipitation has occurred on 15% of recorded December 17th dates, with snow falling 2% of the time (heaviest snowfall: 2"). 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 17th 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 | 70° | 50° | 60° | — | — |
| 2024 | 67° | 37° | 52° | — | — |
| 2023 | 62° | 28° | 45° | — | — |
| 2022 | 49° | 20° | 35° | — | — |
| 2021 | 53° | 29° | 41° | — | — |
| 2020 | 63° | 31° | 47° | — | — |
| 2019 | 50° | 25° | 38° | — | — |
| 2018 | 60° | 45° | 52° | — | — |
| 2017 | 56° | 26° | 41° | — | — |
| 2016 | 51° | 23° | 37° | — | — |
| 2015 | 52° | 20° | 36° | — | — |
| 2014 | 53° | 40° | 46° | 0.46" | — |
| 2013 | 67° | 30° | 49° | — | — |
| 2012 | 59° | 46° | 53° | — | — |
| 2011 | 59° | 32° | 46° | 0.05" | — |
| 2010 | 54° | 45° | 49° | 0.58" | — |
| 2009 | 59° | 29° | 44° | — | — |
| 2008 | 39° | 32° | 36° | 0.56" | — |
| 2007 | 59° | 24° | 42° | — | — |
| 2006 | 48° | 27° | 37° | — | — |
| 2005 | 55° | 45° | 50° | — | — |
| 2004 | 63° | 24° | 43° | — | — |
| 2003 | 56° | 18° | 37° | — | — |
| 2002 | 50° | 37° | 44° | 0.18" | — |
| 2001 | 60° | 20° | 40° | — | — |
| 2000 | 65° | 23° | 44° | — | — |
| 1999 | 67° | 30° | 48° | — | — |
| 1998 | 72° | 38° | 55° | — | — |
| 1997 | 62° | 29° | 45° | — | — |
| 1996 | 63° | 32° | 47° | — | — |
| 1995 | 55° | 20° | 37° | — | — |
| 1994 | 59° | 21° | 40° | — | — |
| 1993 | 49° | 27° | 38° | — | — |
| 1992 | 52° | 29° | 40° | — | — |
| 1991 | 57° | 35° | 46° | — | — |
| 1990 | 51° | 21° | 36° | — | — |
| 1989 | 66° | 18° | 42° | — | — |
| 1988 | 48° | 33° | 41° | — | — |
| 1987 | 38° | 32° | 35° | 0.46" | 2" |
| 1986 | 60° | 28° | 44° | — | — |
| 1985 | 62° | 25° | 43° | — | — |
| 1984coldest | 41° | 23° | 32° | — | — |
| 1983 | 59° | 36° | 47° | — | — |
| 1982 | 67° | 23° | 45° | — | — |
| 1981 | 63° | 33° | 48° | — | — |
| 1980 | 74° | 34° | 54° | — | — |
| 1979 | 68° | 22° | 45° | — | — |
| 1978 | 52° | 42° | 47° | 0.03" | — |
| 1977 | 55° | 48° | 52° | 0.99" | — |
| 1976 | 60° | 20° | 40° | — | — |
| 1975 | 59° | 17° | 38° | — | — |
| 1974 | 64° | 29° | 46° | — | — |
| 1973 | 74° | 30° | 52° | — | — |
| 1972 | 51° | 31° | 41° | — | — |
| 1971 | 55° | 20° | 37° | — | — |
55 years of data from LANCASTER