Weather on May 2
Rialto, CA
55 Years of Data
Avg High
78°F
Avg Low
52°F
Warmest
2004
85°F avg
Coldest
1991
50°F avg
About This Date
May 2nd in Rialto, CA typically brings pleasant spring weather, with average highs around 78°F and lows near 52°F — a 26°F daily swing. Over 48 years of records, the warmest May 2nd was in 2004 (85°F average), while the coldest was 1991 (50°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 2nd dates historically, with the wettest May 2nd recording 1.32" of rain.
Planning for May 2nd in Rialto, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 56° | 66° | — | — |
| 2017 | 90° | 60° | 75° | — | — |
| 2016 | 82° | 50° | 66° | — | — |
| 2015 | 85° | 58° | 71° | — | — |
| 2014 | 92° | 65° | 78° | — | — |
| 2013 | 82° | 67° | 74° | — | — |
| 2012 | 58° | 51° | 54° | — | — |
| 2011 | 80° | 56° | 68° | — | — |
| 2010 | 70° | 47° | 58° | — | — |
| 2009 | 63° | 54° | 58° | — | — |
| 2008 | 81° | 57° | 69° | — | — |
| 2007 | 69° | 52° | 60° | — | — |
| 2006 | 75° | 52° | 63° | — | — |
| 2005 | 71° | 52° | 61° | — | — |
| 2004warmest | 101° | 70° | 85° | — | — |
| 2003 | 65° | 43° | 54° | — | — |
| 2002 | 70° | 41° | 55° | — | — |
| 2001 | 64° | 50° | 57° | — | — |
| 2000 | 86° | 59° | 73° | — | — |
| 1999 | 67° | 45° | 56° | — | — |
| 1998 | 73° | 52° | 62° | — | — |
| 1997 | 87° | 52° | 69° | — | — |
| 1996 | 84° | 55° | 70° | — | — |
| 1995 | 58° | 50° | 54° | — | — |
| 1994 | 75° | 54° | 64° | — | — |
| 1993 | 80° | 55° | 68° | — | — |
| 1992 | 87° | 60° | 74° | — | — |
| 1991coldest | 57° | 43° | 50° | — | — |
| 1990 | 75° | 46° | 61° | — | — |
| 1989 | 83° | 51° | 67° | — | — |
| 1988 | 80° | 45° | 62° | — | — |
| 1987 | 78° | 52° | 65° | — | — |
| 1986 | 84° | 52° | 68° | — | — |
| 1985 | 87° | 55° | 71° | — | — |
| 1984 | 75° | 52° | 63° | — | — |
| 1983 | 72° | 45° | 58° | — | — |
| 1982 | 83° | 54° | 68° | — | — |
| 1981 | 81° | 58° | 69° | — | — |
| 1980 | 84° | 47° | 65° | — | — |
| 1979 | 65° | 50° | 57° | 1.32" | — |
| 1978 | 78° | 45° | 61° | — | — |
| 1977 | 79° | 46° | 62° | — | — |
| 1976 | 89° | 53° | 71° | — | — |
| 1975 | 82° | 45° | 63° | — | — |
| 1974 | 78° | 53° | 66° | — | — |
| 1973 | 88° | 46° | 67° | — | — |
| 1972 | 89° | 50° | 70° | — | — |
| 1971 | 76° | 48° | 62° | — | — |
48 years of data from DEVORE CALIFORNIA