Weather on May 28
Rialto, CA
55 Years of Data
Avg High
81°F
Avg Low
55°F
Warmest
2003
87°F avg
Coldest
1971
54°F avg
About This Date
May 28th in Rialto, CA typically brings warm spring weather, with average highs around 81°F and lows near 55°F — a 26°F daily swing. Over 48 years of records, the warmest May 28th was in 2003 (87°F average), while the coldest was 1971 (54°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 28th dates historically, with the wettest May 28th recording 1.04" of rain.
Planning for May 28th in Rialto, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | — | 60° | — | — | — |
| 2017 | 83° | 52° | 67° | — | — |
| 2016 | 77° | 54° | 65° | — | — |
| 2015 | 82° | 52° | 67° | — | — |
| 2014 | 86° | 60° | 73° | — | — |
| 2013 | 71° | 55° | 63° | — | — |
| 2012 | 85° | 57° | 71° | — | — |
| 2011 | 68° | 50° | 59° | — | — |
| 2010 | 67° | 50° | 58° | — | — |
| 2009 | 83° | 52° | 67° | — | — |
| 2008 | 70° | 47° | 58° | — | — |
| 2007 | 76° | 50° | 63° | — | — |
| 2006 | 75° | 46° | 61° | — | — |
| 2005 | 79° | 54° | 66° | — | — |
| 2004 | 63° | 51° | 57° | — | — |
| 2003warmest | 106° | 69° | 87° | — | — |
| 2002 | 86° | 49° | 67° | — | — |
| 2001 | 66° | 55° | 61° | — | — |
| 2000 | 96° | 65° | 80° | — | — |
| 1999 | 85° | 55° | 70° | — | — |
| 1998 | 74° | 46° | 60° | — | — |
| 1997 | 99° | 71° | 85° | — | — |
| 1996 | 80° | 48° | 64° | — | — |
| 1995 | 81° | 48° | 64° | — | — |
| 1994 | 89° | 53° | 71° | — | — |
| 1993 | 72° | 52° | 62° | — | — |
| 1992 | 72° | 57° | 64° | — | — |
| 1991 | 73° | 45° | 59° | — | — |
| 1990 | 77° | 51° | 64° | 1.04" | — |
| 1989 | 77° | 53° | 65° | — | — |
| 1988 | 72° | 57° | 64° | — | — |
| 1987 | 77° | 55° | 66° | — | — |
| 1986 | 92° | 57° | 74° | — | — |
| 1985 | 81° | 51° | 66° | — | — |
| 1984 | 106° | 65° | 85° | — | — |
| 1983 | 96° | 65° | 80° | — | — |
| 1982 | 75° | 56° | 65° | — | — |
| 1981 | 83° | 59° | 71° | — | — |
| 1980 | 68° | 52° | 60° | — | — |
| 1979 | 77° | 59° | 68° | — | — |
| 1978 | 100° | 57° | 79° | — | — |
| 1977 | 81° | 51° | 66° | — | — |
| 1976 | 78° | 59° | 69° | — | — |
| 1975 | 94° | 57° | 75° | — | — |
| 1974 | 87° | 57° | 72° | — | — |
| 1973 | 103° | 60° | 81° | — | — |
| 1972 | 99° | 56° | 77° | — | — |
| 1971coldest | 59° | 49° | 54° | 0.2" | — |
48 years of data from DEVORE CALIFORNIA