Weather on December 19
San Bernardino, CA
55 Years of Data
Avg High
66°F
Avg Low
42°F
Warmest
2025
63°F avg
Coldest
2008
43°F avg
About This Date
December 19th in San Bernardino, CA typically brings mild winter weather, with average highs around 66°F and lows near 42°F. Over 47 years of records, the warmest December 19th was in 2025 (63°F average), while the coldest was 2008 (43°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 17% of December 19th dates historically, with the wettest December 19th recording 2.67" of rain.
Planning for December 19th in San Bernardino, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 81° | 45° | 63° | — | — |
| 2016 | 58° | 45° | 51° | — | — |
| 2015 | 61° | 42° | 51° | — | — |
| 2014 | 61° | 42° | 51° | — | — |
| 2013 | 52° | 49° | 50° | 0.28" | — |
| 2012 | 58° | 39° | 48° | — | — |
| 2011 | 55° | 44° | 50° | — | — |
| 2010 | 55° | 51° | 53° | 1.22" | — |
| 2009 | 73° | 45° | 59° | — | — |
| 2008coldest | 53° | 32° | 43° | — | — |
| 2007 | 62° | 49° | 55° | 0.81" | — |
| 2006 | 61° | 31° | 46° | — | — |
| 2005 | 72° | 41° | 56° | — | — |
| 2004 | 78° | 41° | 60° | — | — |
| 2003 | 78° | 44° | 61° | — | — |
| 2002 | 64° | 32° | 48° | — | — |
| 2001 | 77° | 35° | 56° | — | — |
| 2000 | 78° | 38° | 58° | — | — |
| 1999 | 79° | 45° | 62° | — | — |
| 1998 | 58° | 52° | 55° | 0.05" | — |
| 1997 | 64° | 42° | 53° | — | — |
| 1996 | 68° | 36° | 52° | — | — |
| 1995 | 66° | 47° | 56° | — | — |
| 1994 | 74° | 41° | 57° | — | — |
| 1993 | 60° | 44° | 52° | 0.23" | — |
| 1992 | 54° | 40° | 47° | — | — |
| 1991 | 57° | 45° | 51° | — | — |
| 1990 | 53° | 41° | 47° | 0.03" | — |
| 1989 | 60° | 38° | 49° | — | — |
| 1988 | 54° | 38° | 46° | 0.03" | — |
| 1987 | 55° | 41° | 48° | — | — |
| 1986 | 62° | 45° | 53° | — | — |
| 1985 | 78° | 42° | 60° | — | — |
| 1984 | 60° | 46° | 53° | 2.67" | — |
| 1983 | 62° | 40° | 51° | — | — |
| 1982 | 80° | 42° | 61° | — | — |
| 1981 | 76° | 46° | 61° | — | — |
| 1980 | 71° | 40° | 55° | — | — |
| 1979 | 71° | 43° | 57° | — | — |
| 1978 | 52° | 39° | 45° | — | — |
| 1977 | 64° | 40° | 52° | — | — |
| 1976 | 70° | 41° | 55° | — | — |
| 1975 | 74° | 37° | 55° | — | — |
| 1974 | 73° | 39° | 56° | — | — |
| 1973 | 73° | 39° | 56° | — | — |
| 1972 | 71° | 42° | 57° | — | — |
| 1971 | 66° | 36° | 51° | — | — |
47 years of data from NORTON AFB