Weather on May 16
Rialto, CA
55 Years of Data
Avg High
78°F
Avg Low
53°F
Warmest
2008
81°F avg
Coldest
2011
49°F avg
About This Date
May 16th in Rialto, CA typically brings pleasant spring weather, with average highs around 78°F and lows near 53°F — a 25°F daily swing. Over 48 years of records, the warmest May 16th was in 2008 (81°F average), while the coldest was 2011 (49°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 16th dates historically.
Planning for May 16th in Rialto, CA? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | — | 55° | — | — | — |
| 2017 | 58° | 49° | 53° | — | — |
| 2016 | 68° | 54° | 61° | — | — |
| 2015 | 63° | 50° | 56° | — | — |
| 2014 | 93° | 68° | 81° | — | — |
| 2013 | 74° | 53° | 63° | — | — |
| 2012 | 91° | 55° | 73° | — | — |
| 2011coldest | 58° | 41° | 49° | — | — |
| 2010 | 80° | 51° | 66° | — | — |
| 2009 | 97° | 64° | 80° | — | — |
| 2008warmest | 92° | 71° | 81° | — | — |
| 2007 | 75° | 51° | 63° | — | — |
| 2006 | 88° | 55° | 71° | — | — |
| 2005 | 65° | 54° | 59° | — | — |
| 2004 | 80° | 54° | 67° | — | — |
| 2003 | 87° | 51° | 69° | — | — |
| 2002 | 73° | 50° | 62° | — | — |
| 2001 | 83° | 54° | 68° | — | — |
| 2000 | 63° | 48° | 55° | — | — |
| 1999 | 77° | 44° | 61° | — | — |
| 1998 | 70° | 47° | 58° | — | — |
| 1997 | 97° | 61° | 79° | — | — |
| 1996 | 73° | 56° | 64° | — | — |
| 1995 | 62° | 49° | 55° | — | — |
| 1994 | 73° | 56° | 64° | — | — |
| 1993 | 78° | 57° | 68° | — | — |
| 1992 | 78° | 51° | 65° | — | — |
| 1991 | 77° | 52° | 64° | — | — |
| 1990 | 86° | 48° | 67° | — | — |
| 1989 | 72° | 53° | 62° | — | — |
| 1988 | 81° | 46° | 63° | — | — |
| 1987 | 79° | 62° | 70° | — | — |
| 1986 | 80° | 56° | 68° | — | — |
| 1985 | 79° | 54° | 66° | — | — |
| 1984 | 90° | 49° | 69° | — | — |
| 1983 | 81° | 54° | 67° | — | — |
| 1982 | 93° | 54° | 73° | — | — |
| 1981 | 71° | 52° | 61° | 0.03" | — |
| 1980 | 82° | 52° | 67° | — | — |
| 1979 | 78° | 55° | 67° | — | — |
| 1978 | 83° | 52° | 67° | — | — |
| 1977 | 67° | 52° | 59° | 0.15" | — |
| 1976 | 88° | 55° | 71° | — | — |
| 1975 | 69° | 53° | 61° | — | — |
| 1974 | 69° | 55° | 62° | — | — |
| 1973 | 90° | 53° | 71° | — | — |
| 1972 | 86° | 55° | 71° | — | — |
| 1971 | 82° | 54° | 68° | — | — |
48 years of data from DEVORE CALIFORNIA