Weather on December 31
San Bernardino, CA
55 Years of Data
Avg High
64°F
Avg Low
41°F
Warmest
2011
65°F avg
Coldest
2010
40°F avg
About This Date
December 31st in San Bernardino, CA typically brings mild winter weather, with average highs around 64°F and lows near 41°F. Over 47 years of records, the warmest December 31st was in 2011 (65°F average), while the coldest was 2010 (40°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 19% of December 31st dates historically, with the wettest December 31st recording 0.69" of rain.
Planning for December 31st in San Bernardino, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 54° | 59° | — | — |
| 2016 | 50° | 41° | 46° | — | — |
| 2015 | 55° | 42° | 49° | — | — |
| 2014 | 47° | 37° | 42° | 0.46" | — |
| 2013 | 72° | 42° | 57° | — | — |
| 2012 | 59° | 33° | 46° | — | — |
| 2011warmest | 86° | 44° | 65° | — | — |
| 2010coldest | 51° | 29° | 40° | — | — |
| 2009 | 68° | 38° | 53° | — | — |
| 2008 | 71° | 41° | 56° | — | — |
| 2007 | 73° | 37° | 55° | — | — |
| 2006 | 67° | 35° | 51° | — | — |
| 2005 | 59° | 43° | 51° | — | — |
| 2004 | 55° | 43° | 49° | 0.69" | — |
| 2003 | 64° | 36° | 50° | — | — |
| 2002 | 58° | 39° | 48° | — | — |
| 2001 | 60° | 49° | 54° | 0.03" | — |
| 2000 | 82° | 40° | 61° | — | — |
| 1999 | 59° | 44° | 52° | 0.38" | — |
| 1998 | 69° | 40° | 54° | — | — |
| 1997 | 77° | 49° | 63° | — | — |
| 1996 | 62° | 54° | 58° | — | — |
| 1995 | 69° | 42° | 56° | — | — |
| 1994 | 61° | 38° | 49° | — | — |
| 1993 | 70° | 39° | 54° | — | — |
| 1992 | 64° | 37° | 51° | — | — |
| 1991 | 60° | 37° | 49° | — | — |
| 1990 | 64° | 29° | 46° | — | — |
| 1989 | 72° | 39° | 55° | — | — |
| 1988 | 53° | 31° | 42° | 0.13" | — |
| 1987 | 56° | 30° | 43° | — | — |
| 1986 | 66° | 41° | 54° | — | — |
| 1985 | 63° | 46° | 54° | — | — |
| 1984 | 72° | 38° | 55° | — | — |
| 1983 | 76° | 49° | 62° | — | — |
| 1982 | 64° | 37° | 51° | — | — |
| 1981 | 57° | 51° | 54° | 0.13" | — |
| 1980 | 83° | 46° | 64° | — | — |
| 1979 | 74° | 46° | 60° | — | — |
| 1978 | 65° | 34° | 49° | — | — |
| 1977 | 60° | 49° | 54° | 0.03" | — |
| 1976 | 59° | 47° | 53° | 0.28" | — |
| 1975 | 56° | 43° | 49° | — | — |
| 1974 | 54° | 42° | 48° | 0.05" | — |
| 1973 | 67° | 38° | 52° | — | — |
| 1972 | 60° | 28° | 44° | — | — |
| 1971 | 59° | 38° | 48° | — | — |
47 years of data from NORTON AFB