Weather on December 31
San Bernardino, CA
55 Years of Data
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° | — | — |
San Bernardino, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Bernardino, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Bernardino, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Bernardino, CA
San Bernardino, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.