Weather on July 4
Rialto, CA
55 Years of Data
Avg High
92°F
Avg Low
62°F
Warmest
1981
87°F avg
Coldest
1993
66°F avg
About This Date
July 4th in Rialto, CA typically brings hot summer weather, with average highs around 92°F and lows near 62°F — a 30°F daily swing. Over 48 years of records, the warmest July 4th was in 1981 (87°F average), while the coldest was 1993 (66°F) — a 21°F range across recorded history. This date has historically been dry, with little recorded precipitation.
Planning for July 4th in Rialto, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 60° | 78° | — | — |
| 2017 | 95° | 66° | 81° | — | — |
| 2016 | 89° | 58° | 73° | — | — |
| 2015 | 87° | 63° | 75° | — | — |
| 2014 | 96° | 69° | 83° | — | — |
| 2013 | 94° | 67° | 80° | — | — |
| 2012 | 81° | 58° | 69° | — | — |
| 2011 | 95° | 71° | 83° | — | — |
| 2010 | 79° | 54° | 66° | — | — |
| 2009 | 91° | 63° | 77° | — | — |
| 2008 | 98° | 70° | 84° | — | — |
| 2007 | 100° | 71° | 86° | — | — |
| 2006 | 91° | 70° | 80° | — | — |
| 2005 | 92° | 59° | 75° | — | — |
| 2004 | 88° | 56° | 72° | — | — |
| 2003 | 98° | 68° | 83° | — | — |
| 2002 | 87° | 54° | 70° | — | — |
| 2001 | 99° | 73° | 86° | — | — |
| 2000 | 85° | 51° | 68° | — | — |
| 1999 | 90° | 52° | 71° | — | — |
| 1998 | 89° | 53° | 71° | — | — |
| 1997 | 101° | 68° | 84° | — | — |
| 1996 | 100° | 66° | 83° | — | — |
| 1995 | 80° | 56° | 68° | — | — |
| 1994 | 88° | 64° | 76° | — | — |
| 1993coldest | 77° | 56° | 66° | — | — |
| 1992 | 86° | 55° | 71° | — | — |
| 1991 | 92° | 62° | 77° | — | — |
| 1990 | 92° | 61° | 76° | — | — |
| 1989 | 106° | 62° | 84° | — | — |
| 1988 | 87° | 60° | 74° | — | — |
| 1987 | 86° | 55° | 71° | — | — |
| 1986 | 85° | 63° | 74° | — | — |
| 1985 | 99° | 71° | 85° | — | — |
| 1984 | 100° | 68° | 84° | — | — |
| 1983 | 95° | 61° | 78° | — | — |
| 1982 | 90° | 58° | 74° | — | — |
| 1981warmest | 105° | 69° | 87° | — | — |
| 1980 | 97° | 61° | 79° | — | — |
| 1979 | 87° | 57° | 72° | — | — |
| 1978 | 84° | 65° | 74° | — | — |
| 1977 | 88° | 61° | 74° | — | — |
| 1976 | 97° | 60° | 78° | — | — |
| 1975 | 94° | 58° | 76° | — | — |
| 1974 | 100° | 60° | 80° | — | — |
| 1973 | 101° | 65° | 83° | — | — |
| 1972 | 102° | 60° | 81° | — | — |
| 1971 | 94° | 56° | 75° | — | — |
48 years of data from FONTANA 5 N