Weather on August 11
San Bernardino, CA
55 Years of Data
Avg High
96°F
Avg Low
64°F
Warmest
2003
99°F avg
Coldest
1999
71°F avg
About This Date
August 11th in San Bernardino, CA typically brings hot summer weather, with average highs around 96°F and lows near 64°F — a 32°F daily swing. Over 48 years of records, the warmest August 11th was in 2003 (99°F average), while the coldest was 1999 (71°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation.
Planning for August 11th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 70° | 84° | — | — |
| 2017 | 97° | 69° | 83° | — | — |
| 2016 | 91° | 59° | 75° | — | — |
| 2015 | 86° | 58° | 72° | — | — |
| 2014 | 92° | 68° | 80° | — | — |
| 2013 | 88° | 58° | 73° | — | — |
| 2012 | 105° | 75° | 90° | — | — |
| 2011 | 88° | 58° | 73° | — | — |
| 2010 | 91° | 53° | 72° | — | — |
| 2009 | 96° | 60° | 78° | — | — |
| 2008 | 94° | 59° | 76° | — | — |
| 2007 | 97° | 60° | 78° | — | — |
| 2006 | 91° | 65° | 78° | — | — |
| 2005 | 94° | 64° | 79° | — | — |
| 2004 | 104° | 72° | 88° | — | — |
| 2003warmest | 102° | 97° | 99° | — | — |
| 2002 | 104° | 62° | 83° | — | — |
| 2001 | 98° | 63° | 80° | — | — |
| 2000 | 104° | 67° | 85° | — | — |
| 1999coldest | 84° | 58° | 71° | — | — |
| 1998 | 100° | 71° | 86° | — | — |
| 1997 | 86° | 64° | 75° | — | — |
| 1996 | 100° | 68° | 84° | — | — |
| 1995 | 99° | 64° | 81° | — | — |
| 1994 | 104° | 72° | 88° | — | — |
| 1993 | 93° | 62° | 78° | — | — |
| 1992 | 100° | 56° | 78° | — | — |
| 1991 | 92° | 55° | 73° | — | — |
| 1990 | 102° | 69° | 86° | — | — |
| 1989 | 95° | 67° | 81° | — | — |
| 1988 | 87° | 59° | 73° | — | — |
| 1987 | 92° | 64° | 78° | — | — |
| 1986 | 96° | 64° | 80° | — | — |
| 1985 | 86° | 62° | 74° | — | — |
| 1984 | 96° | 65° | 80° | — | — |
| 1983 | 99° | 66° | 82° | — | — |
| 1982 | 96° | 63° | 79° | — | — |
| 1981 | 100° | 64° | 82° | — | — |
| 1980 | 107° | 69° | 88° | — | — |
| 1979 | 92° | 69° | 80° | — | — |
| 1978 | 97° | 66° | 81° | — | — |
| 1977 | 100° | 61° | 80° | — | — |
| 1976 | 98° | 57° | 78° | — | — |
| 1975 | 96° | 63° | 79° | — | — |
| 1974 | 93° | 59° | 76° | — | — |
| 1973 | 97° | 60° | 78° | — | — |
| 1972 | 98° | 67° | 82° | — | — |
| 1971 | 105° | 70° | 87° | — | — |
48 years of data from NORTON AFB