Weather on August 13
San Bernardino, CA
55 Years of Data
Avg High
95°F
Avg Low
65°F
Warmest
1983
90°F avg
Coldest
1985
71°F avg
About This Date
August 13th in San Bernardino, CA typically brings hot summer weather, with average highs around 95°F and lows near 65°F — a 30°F daily swing. Over 48 years of records, the warmest August 13th was in 1983 (90°F average), while the coldest was 1985 (71°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 13th dates historically.
Planning for August 13th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 63° | 78° | — | — |
| 2017 | 92° | 63° | 77° | — | — |
| 2016 | 96° | 67° | 81° | — | — |
| 2015 | 101° | 74° | 87° | — | — |
| 2014 | 91° | 66° | 79° | — | — |
| 2013 | 93° | 61° | 77° | — | — |
| 2012 | 107° | 73° | 90° | — | — |
| 2011 | 93° | 63° | 78° | — | — |
| 2010 | 93° | 56° | 74° | — | — |
| 2009 | 96° | 59° | 78° | — | — |
| 2008 | 99° | 61° | 80° | — | — |
| 2007 | 104° | 64° | 84° | — | — |
| 2006 | 89° | 58° | 73° | — | — |
| 2005 | 86° | 61° | 73° | — | — |
| 2004 | 94° | 72° | 83° | 0.03" | — |
| 2003 | 104° | 67° | 85° | — | — |
| 2002 | 101° | 67° | 84° | — | — |
| 2001 | 102° | 67° | 84° | — | — |
| 2000 | 101° | 66° | 83° | — | — |
| 1999 | 97° | 62° | 79° | — | — |
| 1998 | 101° | 71° | 86° | — | — |
| 1997 | 96° | 61° | 78° | — | — |
| 1996 | 104° | 71° | 88° | — | — |
| 1995 | 99° | 67° | 83° | — | — |
| 1994 | 105° | 71° | 88° | — | — |
| 1993 | 82° | 62° | 72° | — | — |
| 1992 | 100° | 69° | 85° | — | — |
| 1991 | 92° | 71° | 81° | — | — |
| 1990 | 89° | 68° | 79° | — | — |
| 1989 | 96° | 67° | 81° | — | — |
| 1988 | 88° | 56° | 72° | — | — |
| 1987 | 83° | 62° | 72° | — | — |
| 1986 | 94° | 62° | 78° | — | — |
| 1985coldest | 85° | 58° | 71° | — | — |
| 1984 | 99° | 68° | 83° | — | — |
| 1983warmest | 106° | 75° | 90° | — | — |
| 1982 | 87° | 64° | 76° | — | — |
| 1981 | 97° | 63° | 80° | — | — |
| 1980 | 93° | 65° | 79° | — | — |
| 1979 | 83° | 63° | 73° | — | — |
| 1978 | 92° | 61° | 76° | — | — |
| 1977 | 98° | 64° | 81° | — | — |
| 1976 | 92° | 58° | 75° | — | — |
| 1975 | 92° | 58° | 75° | — | — |
| 1974 | 89° | 64° | 77° | — | — |
| 1973 | 97° | 65° | 81° | 0.05" | — |
| 1972 | 88° | 65° | 76° | — | — |
| 1971 | 98° | 66° | 82° | — | — |
48 years of data from NORTON AFB