Weather on May 10
Rialto, CA
55 Years of Data
About This Date
May 10th 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 49 years of records, the warmest May 10th was in 2025 (83°F average), while the coldest was 1991 (51°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 6% of May 10th dates historically, with the wettest May 10th recording 0.56" of rain.
Planning for May 10th in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 91° | 58° | 75° | — | — |
| 2025warmest | 102° | 64° | 83° | — | — |
| 2017 | 62° | 52° | 57° | — | — |
| 2016 | 73° | 51° | 62° | — | — |
| 2015 | 80° | 48° | 64° | — | — |
| 2014 | 70° | 51° | 60° | — | — |
| 2013 | 84° | 52° | 68° | — | — |
| 2012 | 80° | 53° | 67° | — | — |
| 2011 | 65° | 44° | 54° | — | — |
| 2010 | 62° | 45° | 53° | — | — |
| 2009 | 82° | 54° | 68° | — | — |
| 2008 | 75° | 52° | 63° | — | — |
| 2007 | 87° | 56° | 71° | — | — |
| 2006 | 91° | 53° | 72° | — | — |
| 2005 | 69° | 43° | 56° | — | — |
| 2004 | 76° | 52° | 64° | — | — |
| 2003 | 74° | 43° | 58° | — | — |
| 2002 | 72° | 47° | 59° | — | — |
| 2001 | 90° | 60° | 75° | — | — |
| 2000 | 71° | 53° | 62° | — | — |
| 1999 | 72° | 50° | 61° | — | — |
| 1998 | 67° | 54° | 60° | — | — |
| 1997 | 90° | 59° | 74° | — | — |
| 1996 | 94° | 59° | 76° | — | — |
| 1995 | 72° | 46° | 59° | — | — |
| 1994 | 79° | 52° | 65° | — | — |
| 1993 | 91° | 62° | 77° | — | — |
| 1992 | 77° | 57° | 67° | — | — |
| 1991coldest | 59° | 42° | 51° | — | — |
| 1990 | 65° | 51° | 58° | — | — |
| 1989 | 65° | 55° | 60° | — | — |
| 1988 | 93° | 54° | 73° | — | — |
| 1987 | 87° | 59° | 73° | — | — |
| 1986 | 81° | 52° | 66° | — | — |
| 1985 | 65° | 51° | 58° | — | — |
| 1984 | 93° | 57° | 75° | — | — |
| 1983 | 72° | 55° | 63° | — | — |
| 1982 | 64° | 49° | 56° | 0.13" | — |
| 1981 | 95° | 57° | 76° | — | — |
| 1980 | 64° | 50° | 57° | — | — |
| 1979 | 82° | 41° | 62° | — | — |
| 1978 | 79° | 48° | 63° | — | — |
| 1977 | 66° | 49° | 57° | 0.28" | — |
| 1976 | 89° | 56° | 72° | — | — |
| 1975 | 90° | 48° | 69° | — | — |
| 1974 | 76° | 56° | 66° | — | — |
| 1973 | 94° | 55° | 74° | — | — |
| 1972 | 82° | 49° | 65° | — | — |
| 1971 | 76° | 47° | 61° | 0.56" | — |
Rialto, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Rialto, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rialto, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Rialto, CA
Rialto, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.