Weather on October 31
San Bernardino, CA
55 Years of Data
Avg High
76°F
Avg Low
50°F
Warmest
2015
76°F avg
Coldest
2002
49°F avg
About This Date
October 31st in San Bernardino, CA typically brings pleasant fall weather, with average highs around 76°F and lows near 50°F — a 26°F daily swing. Over 48 years of records, the warmest October 31st was in 2015 (76°F average), while the coldest was 2002 (49°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 8% of October 31st dates historically, with the wettest October 31st recording 1.91" of rain.
Planning for October 31st in San Bernardino, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 55° | 71° | — | — |
| 2017 | 64° | 54° | 59° | — | — |
| 2016 | 63° | 53° | 58° | — | — |
| 2015warmest | 89° | 63° | 76° | — | — |
| 2014 | 63° | 55° | 59° | — | — |
| 2013 | 78° | 45° | 61° | — | — |
| 2012 | 80° | 49° | 64° | — | — |
| 2011 | 89° | 51° | 70° | — | — |
| 2010 | 70° | 48° | 59° | — | — |
| 2009 | 89° | 47° | 68° | — | — |
| 2008 | 85° | 60° | 72° | — | — |
| 2007 | 83° | 48° | 65° | — | — |
| 2006 | 71° | 53° | 62° | — | — |
| 2005 | 89° | 49° | 69° | — | — |
| 2004 | 76° | 43° | 59° | — | — |
| 2003 | 64° | 46° | 55° | — | — |
| 2002coldest | 63° | 36° | 49° | — | — |
| 2001 | 74° | 54° | 64° | — | — |
| 2000 | 67° | 46° | 56° | 0.03" | — |
| 1999 | 91° | 50° | 71° | — | — |
| 1998 | 76° | 46° | 61° | — | — |
| 1997 | 88° | 50° | 69° | — | — |
| 1996 | 62° | 43° | 52° | — | — |
| 1995 | 77° | 59° | 68° | — | — |
| 1994 | 85° | 49° | 67° | — | — |
| 1993 | 80° | 49° | 64° | — | — |
| 1992 | 71° | 53° | 62° | 0.05" | — |
| 1991 | 70° | 40° | 55° | — | — |
| 1990 | 75° | 51° | 63° | — | — |
| 1989 | 76° | 44° | 60° | — | — |
| 1988 | 89° | 56° | 72° | — | — |
| 1987 | 60° | 56° | 58° | 1.91" | — |
| 1986 | 77° | 55° | 66° | — | — |
| 1985 | 78° | 55° | 67° | — | — |
| 1984 | 69° | 56° | 62° | — | — |
| 1983 | 75° | 63° | 69° | — | — |
| 1982 | 75° | 48° | 62° | — | — |
| 1981 | 80° | 47° | 63° | — | — |
| 1980 | 86° | 52° | 69° | — | — |
| 1979 | 75° | 42° | 59° | — | — |
| 1978 | 60° | 50° | 55° | — | — |
| 1977 | 76° | 44° | 60° | — | — |
| 1976 | 88° | 44° | 66° | — | — |
| 1975 | 79° | 44° | 61° | 0.53" | — |
| 1974 | 65° | 48° | 56° | — | — |
| 1973 | 90° | 50° | 70° | — | — |
| 1972 | 71° | 45° | 58° | — | — |
| 1971 | 69° | 33° | 51° | — | — |
48 years of data from NORTON AFB