Weather on June 30
Rialto, CA
55 Years of Data
Avg High
92°F
Avg Low
62°F
Warmest
2013
91°F avg
Coldest
1992
65°F avg
About This Date
June 30th 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 June 30th was in 2013 (91°F average), while the coldest was 1992 (65°F) — a 26°F range across recorded history. This date has historically been dry, with little recorded precipitation.
Planning for June 30th in Rialto, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 66° | 81° | — | — |
| 2017 | 87° | 57° | 72° | — | — |
| 2016 | 98° | 69° | 84° | — | — |
| 2015 | 96° | 73° | 85° | — | — |
| 2014 | 90° | 61° | 75° | — | — |
| 2013warmest | 106° | 76° | 91° | — | — |
| 2012 | 88° | 59° | 73° | — | — |
| 2011 | 87° | 56° | 71° | — | — |
| 2010 | 89° | 55° | 72° | — | — |
| 2009 | 90° | 67° | 78° | — | — |
| 2008 | 94° | 68° | 81° | — | — |
| 2007 | 94° | 65° | 79° | — | — |
| 2006 | 98° | 73° | 86° | — | — |
| 2005 | 93° | 60° | 77° | — | — |
| 2004 | 78° | 54° | 66° | — | — |
| 2003 | 98° | 64° | 81° | — | — |
| 2002 | 91° | 57° | 74° | — | — |
| 2001 | 99° | 65° | 82° | — | — |
| 2000 | 91° | 59° | 75° | — | — |
| 1999 | 95° | 58° | 76° | — | — |
| 1998 | 91° | 60° | 76° | — | — |
| 1997 | 81° | 53° | 67° | — | — |
| 1996 | 101° | 68° | 84° | — | — |
| 1995 | 91° | 59° | 75° | — | — |
| 1994 | 96° | 67° | 81° | — | — |
| 1993 | 92° | 62° | 77° | — | — |
| 1992coldest | 76° | 55° | 65° | — | — |
| 1991 | 95° | 55° | 75° | — | — |
| 1990 | 96° | 67° | 81° | — | — |
| 1989 | 87° | 54° | 70° | — | — |
| 1988 | 94° | 61° | 77° | — | — |
| 1987 | 81° | 58° | 69° | — | — |
| 1986 | 97° | 68° | 82° | — | — |
| 1985 | 102° | 65° | 83° | — | — |
| 1984 | 98° | 67° | 82° | — | — |
| 1983 | 75° | 60° | 68° | — | — |
| 1982 | 77° | 58° | 67° | — | — |
| 1981 | 99° | 56° | 77° | — | — |
| 1980 | 95° | 67° | 81° | — | — |
| 1979 | 100° | 63° | 81° | — | — |
| 1978 | 91° | 57° | 74° | — | — |
| 1977 | 97° | 65° | 81° | — | — |
| 1976 | 98° | 62° | 80° | — | — |
| 1975 | 91° | 57° | 74° | — | — |
| 1974 | 92° | 58° | 75° | — | — |
| 1973 | 96° | 60° | 78° | — | — |
| 1972 | 97° | 63° | 80° | — | — |
| 1971 | 94° | 53° | 73° | — | — |
48 years of data from DEVORE CALIFORNIA