Weather on April 1
Rialto, CA
55 Years of Data
Avg High
69°F
Avg Low
47°F
Warmest
2011
74°F avg
Coldest
1998
41°F avg
About This Date
April 1st in Rialto, CA typically brings mild spring weather, with average highs around 69°F and lows near 47°F. Over 49 years of records, the warmest April 1st was in 2011 (74°F average), while the coldest was 1998 (41°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 12% of April 1st dates historically, with the wettest April 1st recording 3.02" of rain.
Planning for April 1st in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 73° | 54° | 64° | — | — |
| 2025 | 64° | 50° | 57° | — | — |
| 2017 | 79° | 49° | 64° | — | — |
| 2016 | 75° | 47° | 61° | — | — |
| 2015 | 74° | 49° | 61° | — | — |
| 2014 | 55° | 44° | 50° | — | — |
| 2013 | 60° | 49° | 54° | — | — |
| 2012 | 62° | 42° | 52° | — | — |
| 2011warmest | 88° | 61° | 74° | — | — |
| 2010 | 58° | 42° | 50° | — | — |
| 2009 | 68° | 45° | 56° | — | — |
| 2008 | 62° | 41° | 52° | — | — |
| 2007 | 79° | 53° | 66° | — | — |
| 2006 | 58° | 43° | 50° | — | — |
| 2005 | 81° | 56° | 68° | — | — |
| 2004 | 55° | 47° | 51° | — | — |
| 2003 | 72° | 49° | 60° | — | — |
| 2002 | 81° | 48° | 64° | — | — |
| 2001 | 61° | 48° | 54° | — | — |
| 2000 | 77° | 52° | 64° | — | — |
| 1999 | 49° | 34° | 41° | — | — |
| 1998coldest | 48° | 33° | 41° | — | — |
| 1997 | 67° | 47° | 57° | — | — |
| 1996 | 73° | 45° | 59° | — | — |
| 1995 | 70° | 48° | 59° | — | — |
| 1994 | 76° | 51° | 63° | — | — |
| 1993 | 60° | 48° | 54° | — | — |
| 1992 | 64° | 49° | 56° | — | — |
| 1991 | 51° | 44° | 48° | — | — |
| 1990 | 62° | 47° | 54° | 0.25" | — |
| 1989 | 74° | 52° | 63° | — | — |
| 1988 | 78° | 43° | 60° | — | — |
| 1987 | 76° | 44° | 60° | — | — |
| 1986 | 66° | 56° | 61° | — | — |
| 1985 | 89° | 56° | 72° | — | — |
| 1984 | 64° | 40° | 52° | 0.28" | — |
| 1983 | 83° | 47° | 65° | — | — |
| 1982 | 58° | 45° | 51° | 3.02" | — |
| 1981 | 71° | 47° | 59° | — | — |
| 1980 | 64° | 43° | 53° | 0.3" | — |
| 1979 | 75° | 41° | 58° | — | — |
| 1978 | 67° | 50° | 58° | 0.23" | — |
| 1977 | 57° | 44° | 51° | — | — |
| 1976 | 77° | 42° | 60° | — | — |
| 1975 | 64° | 44° | 54° | 0.46" | — |
| 1974 | 66° | 44° | 55° | — | — |
| 1973 | 63° | 48° | 55° | — | — |
| 1972 | 80° | 46° | 63° | — | — |
| 1971 | 87° | 43° | 65° | — | — |
49 years of data from DEVORE CALIFORNIA