Weather on September 24
San Bernardino, CA
55 Years of Data
Avg High
90°F
Avg Low
60°F
Warmest
2015
86°F avg
Coldest
1986
55°F avg
About This Date
September 24th in San Bernardino, CA typically brings hot fall weather, with average highs around 90°F and lows near 60°F — a 30°F daily swing. Over 48 years of records, the warmest September 24th was in 2015 (86°F average), while the coldest was 1986 (55°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 24th dates historically, with the wettest September 24th recording 0.86" of rain.
Planning for September 24th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 69° | 81° | — | — |
| 2017 | 78° | 60° | 69° | — | — |
| 2016 | 89° | 67° | 78° | — | — |
| 2015warmest | 99° | 74° | 86° | — | — |
| 2014 | 97° | 65° | 81° | — | — |
| 2013 | 89° | 59° | 74° | — | — |
| 2012 | 91° | 64° | 78° | — | — |
| 2011 | 85° | 62° | 73° | — | — |
| 2010 | 101° | 57° | 79° | — | — |
| 2009 | 103° | 62° | 82° | — | — |
| 2008 | 100° | 55° | 78° | — | — |
| 2007 | 89° | 49° | 69° | — | — |
| 2006 | 98° | 52° | 75° | — | — |
| 2005 | 81° | 56° | 68° | — | — |
| 2004 | 98° | 57° | 78° | — | — |
| 2003 | 84° | 61° | 72° | — | — |
| 2002 | 100° | 66° | 83° | — | — |
| 2001 | 106° | 61° | 83° | — | — |
| 2000 | 91° | 53° | 72° | — | — |
| 1999 | 91° | 59° | 75° | — | — |
| 1998 | 74° | 51° | 62° | — | — |
| 1997 | 100° | 62° | 81° | — | — |
| 1996 | 83° | 58° | 70° | — | — |
| 1995 | 89° | 61° | 75° | — | — |
| 1994 | 85° | 61° | 73° | — | — |
| 1993 | 95° | 52° | 73° | — | — |
| 1992 | 99° | 67° | 83° | — | — |
| 1991 | 100° | 66° | 83° | — | — |
| 1990 | 82° | 55° | 69° | — | — |
| 1989 | 100° | 59° | 80° | — | — |
| 1988 | 77° | 58° | 67° | — | — |
| 1987 | 88° | 61° | 74° | — | — |
| 1986coldest | 58° | 53° | 55° | 0.86" | — |
| 1985 | 90° | 63° | 76° | — | — |
| 1984 | 81° | 64° | 72° | — | — |
| 1983 | 87° | 62° | 75° | — | — |
| 1982 | 97° | 68° | 82° | — | — |
| 1981 | 81° | 62° | 71° | — | — |
| 1980 | 101° | 53° | 77° | — | — |
| 1979 | 92° | 65° | 78° | — | — |
| 1978 | 105° | 65° | 85° | — | — |
| 1977 | 91° | 55° | 73° | — | — |
| 1976 | 82° | 63° | 72° | 0.28" | — |
| 1975 | 101° | 59° | 80° | — | — |
| 1974 | 90° | 61° | 75° | — | — |
| 1973 | 82° | 50° | 66° | — | — |
| 1972 | 75° | 62° | 69° | — | — |
| 1971 | 94° | 50° | 72° | — | — |
48 years of data from NORTON AFB