Weather on September 8
San Bernardino, CA
55 Years of Data
Avg High
93°F
Avg Low
63°F
Warmest
1979
90°F avg
Coldest
2010
63°F avg
About This Date
September 8th in San Bernardino, CA typically brings hot fall weather, with average highs around 93°F and lows near 63°F — a 30°F daily swing. Over 48 years of records, the warmest September 8th was in 1979 (90°F average), while the coldest was 2010 (63°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 8th dates historically.
Planning for September 8th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 68° | 81° | — | — |
| 2017 | 90° | 67° | 78° | — | — |
| 2016 | 85° | 58° | 71° | — | — |
| 2015 | 101° | 75° | 88° | — | — |
| 2014 | 85° | 73° | 79° | — | — |
| 2013 | 96° | 69° | 83° | — | — |
| 2012 | 101° | 67° | 84° | — | — |
| 2011 | 103° | 69° | 86° | — | — |
| 2010coldest | 70° | 57° | 63° | — | — |
| 2009 | 91° | 56° | 73° | — | — |
| 2008 | 94° | 63° | 78° | — | — |
| 2007 | 92° | 58° | 75° | — | — |
| 2006 | 92° | 59° | 75° | — | — |
| 2005 | 90° | 57° | 73° | — | — |
| 2004 | 104° | 66° | 85° | — | — |
| 2003 | 92° | 60° | 76° | — | — |
| 2002 | 87° | 54° | 70° | — | — |
| 2001 | 85° | 62° | 73° | — | — |
| 2000 | 96° | 60° | 78° | — | — |
| 1999 | 97° | 58° | 77° | — | — |
| 1998 | 90° | 65° | 77° | — | — |
| 1997 | 99° | 66° | 82° | — | — |
| 1996 | 96° | 67° | 81° | — | — |
| 1995 | 95° | 66° | 81° | — | — |
| 1994 | 96° | 62° | 79° | — | — |
| 1993 | 102° | 64° | 83° | — | — |
| 1992 | 90° | 57° | 73° | — | — |
| 1991 | 88° | 57° | 72° | — | — |
| 1990 | 100° | 66° | 83° | — | — |
| 1989 | 87° | 52° | 69° | — | — |
| 1988 | 92° | 63° | 77° | — | — |
| 1987 | 97° | 59° | 78° | — | — |
| 1986 | 90° | 61° | 75° | — | — |
| 1985 | 78° | 60° | 69° | — | — |
| 1984 | 105° | 71° | 88° | — | — |
| 1983 | 98° | 66° | 82° | — | — |
| 1982 | 93° | 70° | 81° | 0.03" | — |
| 1981 | 100° | 67° | 83° | — | — |
| 1980 | 80° | 59° | 70° | — | — |
| 1979warmest | 111° | 69° | 90° | — | — |
| 1978 | 88° | 52° | 70° | — | — |
| 1977 | 105° | 68° | 87° | — | — |
| 1976 | 100° | 62° | 81° | — | — |
| 1975 | 84° | 65° | 74° | 0.25" | — |
| 1974 | 99° | 67° | 83° | — | — |
| 1973 | 84° | 60° | 72° | — | — |
| 1972 | 86° | 66° | 76° | — | — |
| 1971 | 108° | 67° | 87° | — | — |
48 years of data from NORTON AFB