Weather on May 12
Rialto, CA
55 Years of Data
Avg High
81°F
Avg Low
54°F
Warmest
2013
82°F avg
Coldest
1998
45°F avg
About This Date
May 12th in Rialto, CA typically brings warm spring weather, with average highs around 81°F and lows near 54°F — a 27°F daily swing. Over 48 years of records, the warmest May 12th was in 2013 (82°F average), while the coldest was 1998 (45°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 12th dates historically.
Planning for May 12th in Rialto, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 59° | 74° | — | — |
| 2017 | 76° | 52° | 64° | — | — |
| 2016 | 92° | 58° | 75° | — | — |
| 2015 | 72° | 50° | 61° | — | — |
| 2014 | 83° | 65° | 74° | — | — |
| 2013warmest | 96° | 68° | 82° | — | — |
| 2012 | 83° | 51° | 67° | — | — |
| 2011 | 84° | 51° | 68° | — | — |
| 2010 | 76° | 45° | 60° | — | — |
| 2009 | 75° | 53° | 64° | — | — |
| 2008 | 59° | 49° | 54° | — | — |
| 2007 | 77° | 48° | 63° | — | — |
| 2006 | 83° | 56° | 69° | — | — |
| 2005 | 83° | 56° | 69° | — | — |
| 2004 | 82° | 49° | 65° | — | — |
| 2003 | 84° | 52° | 68° | — | — |
| 2002 | 93° | 54° | 73° | — | — |
| 2001 | 79° | 57° | 68° | — | — |
| 2000 | 85° | 56° | 70° | — | — |
| 1999 | 85° | 53° | 69° | — | — |
| 1998coldest | 45° | 45° | 45° | — | — |
| 1997 | 91° | 55° | 73° | — | — |
| 1996 | 98° | 63° | 80° | — | — |
| 1995 | 60° | 49° | 54° | — | — |
| 1994 | 72° | 58° | 65° | 0.05" | — |
| 1993 | 72° | 50° | 61° | — | — |
| 1992 | 75° | 56° | 65° | — | — |
| 1991 | 74° | 45° | 59° | — | — |
| 1990 | 75° | 51° | 63° | — | — |
| 1989 | 67° | 52° | 59° | — | — |
| 1988 | 96° | 60° | 78° | — | — |
| 1987 | 92° | 60° | 76° | — | — |
| 1986 | 76° | 49° | 62° | — | — |
| 1985 | 73° | 53° | 63° | — | — |
| 1984 | 97° | 57° | 77° | — | — |
| 1983 | 81° | 46° | 63° | — | — |
| 1982 | 75° | 45° | 60° | — | — |
| 1981 | 82° | 59° | 71° | — | — |
| 1980 | 66° | 44° | 55° | — | — |
| 1979 | 95° | 51° | 73° | — | — |
| 1978 | 100° | 53° | 77° | — | — |
| 1977 | 66° | 50° | 58° | 0.41" | — |
| 1976 | 102° | 60° | 81° | — | — |
| 1975 | 98° | 56° | 77° | — | — |
| 1974 | 77° | 56° | 66° | — | — |
| 1973 | 77° | 56° | 66° | — | — |
| 1972 | 97° | 52° | 74° | — | — |
| 1971 | 80° | 55° | 68° | — | — |
48 years of data from DEVORE CALIFORNIA