Weather on August 4
San Bernardino, CA
55 Years of Data
About This Date
August 4th in San Bernardino, CA typically brings hot summer weather, with average highs around 94°F and lows near 64°F — a 30°F daily swing. Over 48 years of records, the warmest August 4th was in 1997 (89°F average), while the coldest was 1987 (39°F) — a 50°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 4th dates historically, with the wettest August 4th recording 2.41" of rain.
Planning for August 4th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 66° | 81° | — | — |
| 2017 | 92° | 71° | 81° | — | — |
| 2016 | 92° | 65° | 78° | — | — |
| 2015 | 92° | 67° | 79° | — | — |
| 2014 | 87° | 69° | 78° | 2.41" | — |
| 2013 | 89° | 60° | 75° | — | — |
| 2012 | 92° | 62° | 77° | — | — |
| 2011 | 100° | 63° | 81° | — | — |
| 2010 | 97° | 68° | 82° | — | — |
| 2009 | 102° | 66° | 84° | — | — |
| 2008 | 98° | 71° | 85° | — | — |
| 2007 | 96° | 65° | 80° | — | — |
| 2006 | 84° | 59° | 72° | — | — |
| 2005 | 97° | 65° | 81° | — | — |
| 2004 | 91° | 59° | 75° | — | — |
| 2003 | 93° | 62° | 78° | — | — |
| 2002 | 95° | 53° | 74° | — | — |
| 2001 | 97° | 59° | 78° | — | — |
| 2000 | 99° | 67° | 83° | — | — |
| 1999 | 99° | 64° | 81° | — | — |
| 1998 | 109° | 69° | 89° | — | — |
| 1997warmest | 104° | 73° | 89° | — | — |
| 1996 | 85° | 64° | 74° | — | — |
| 1995 | 100° | 67° | 83° | — | — |
| 1994 | 99° | 62° | 80° | — | — |
| 1993 | 99° | 68° | 83° | — | — |
| 1992 | 92° | 65° | 78° | — | — |
| 1991 | 90° | 62° | 76° | — | — |
| 1990 | 94° | 60° | 77° | — | — |
| 1989 | 94° | 60° | 77° | — | — |
| 1988 | 89° | 62° | 76° | — | — |
| 1987coldest | 10° | 68° | 39° | — | — |
| 1986 | 99° | 66° | 82° | — | — |
| 1985 | 96° | 60° | 78° | — | — |
| 1984 | 98° | 66° | 82° | — | — |
| 1983 | 103° | 65° | 84° | — | — |
| 1982 | 97° | 59° | 78° | — | — |
| 1981 | 98° | 60° | 79° | — | — |
| 1980 | 94° | 62° | 78° | — | — |
| 1979 | 100° | 62° | 81° | — | — |
| 1978 | 105° | 67° | 86° | — | — |
| 1977 | 101° | 67° | 84° | — | — |
| 1976 | 90° | 57° | 73° | — | — |
| 1975 | 105° | 64° | 85° | — | — |
| 1974 | 96° | 67° | 81° | — | — |
| 1973 | 94° | 67° | 80° | — | — |
| 1972 | 95° | 59° | 77° | — | — |
| 1971 | 101° | 68° | 84° | — | — |
San Bernardino, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Bernardino, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Bernardino, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Bernardino, CA
San Bernardino, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.