Weather on May 22
Rialto, CA
55 Years of Data
Avg High
79°F
Avg Low
54°F
Warmest
2000
81°F avg
Coldest
2015
53°F avg
About This Date
May 22nd in Rialto, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 54°F — a 25°F daily swing. Over 48 years of records, the warmest May 22nd was in 2000 (81°F average), while the coldest was 2015 (53°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation.
Planning for May 22nd in Rialto, CA? Great weather for outdoor activities.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 60° | 75° | — | — |
| 2017 | 91° | 64° | 78° | — | — |
| 2016 | 70° | 45° | 57° | — | — |
| 2015coldest | 56° | 50° | 53° | — | — |
| 2014 | 65° | 51° | 58° | — | — |
| 2013 | 76° | 56° | 66° | — | — |
| 2012 | 87° | 63° | 75° | — | — |
| 2011 | 67° | 53° | 60° | — | — |
| 2010 | 63° | 48° | 55° | — | — |
| 2009 | 77° | 54° | 65° | — | — |
| 2008 | 66° | 49° | 57° | — | — |
| 2007 | 67° | 53° | 60° | — | — |
| 2006 | 58° | 51° | 54° | — | — |
| 2005 | 97° | 66° | 81° | — | — |
| 2004 | 72° | 51° | 61° | — | — |
| 2003 | 92° | 64° | 78° | — | — |
| 2002 | 77° | 43° | 60° | — | — |
| 2001 | 98° | 54° | 76° | — | — |
| 2000warmest | 101° | 61° | 81° | — | — |
| 1999 | 61° | 49° | 55° | — | — |
| 1998 | 73° | 48° | 61° | — | — |
| 1997 | 82° | 52° | 67° | — | — |
| 1996 | 69° | 54° | 61° | — | — |
| 1995 | 60° | 50° | 55° | — | — |
| 1994 | 80° | 52° | 66° | — | — |
| 1993 | 77° | 51° | 64° | — | — |
| 1992 | 73° | 52° | 62° | — | — |
| 1991 | 72° | 44° | 58° | — | — |
| 1990 | 85° | 54° | 69° | — | — |
| 1989 | 84° | 54° | 69° | — | — |
| 1988 | 94° | 60° | 77° | — | — |
| 1987 | 77° | 79° | 78° | — | — |
| 1986 | 77° | 56° | 66° | — | — |
| 1985 | 94° | 55° | 74° | — | — |
| 1984 | 93° | 57° | 75° | — | — |
| 1983 | 91° | 57° | 74° | — | — |
| 1982 | 80° | 59° | 70° | — | — |
| 1981 | 82° | 52° | 67° | — | — |
| 1980 | 68° | 54° | 61° | — | — |
| 1979 | 92° | 52° | 72° | — | — |
| 1978 | 78° | 55° | 67° | — | — |
| 1977 | 82° | 54° | 68° | — | — |
| 1976 | 80° | 52° | 66° | — | — |
| 1975 | 76° | 44° | 60° | — | — |
| 1974 | 88° | 51° | 69° | — | — |
| 1973 | 82° | 52° | 67° | — | — |
| 1972 | 81° | 46° | 63° | — | — |
| 1971 | 76° | 48° | 62° | — | — |
48 years of data from DEVORE CALIFORNIA