Weather on April 17
Rialto, CA
55 Years of Data
About This Date
April 17th in Rialto, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 49°F. Over 49 years of records, the warmest April 17th was in 1980 (75°F average), while the coldest was 1995 (45°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 8% of April 17th dates historically.
Planning for April 17th in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 81° | 52° | 66° | — | — |
| 2025 | 61° | 53° | 57° | — | — |
| 2017 | 74° | 51° | 62° | — | — |
| 2016 | 81° | 57° | 69° | — | — |
| 2015 | 80° | 52° | 66° | — | — |
| 2014 | 77° | 52° | 64° | — | — |
| 2013 | 66° | 48° | 57° | — | — |
| 2012 | 80° | 55° | 68° | — | — |
| 2011 | 79° | 55° | 67° | — | — |
| 2010 | 79° | 52° | 65° | — | — |
| 2009 | 77° | 46° | 62° | — | — |
| 2008 | 83° | 54° | 68° | — | — |
| 2007 | 69° | 44° | 57° | — | — |
| 2006 | 61° | 46° | 53° | — | — |
| 2005 | 78° | 51° | 65° | — | — |
| 2004 | 50° | 44° | 47° | — | — |
| 2003 | 55° | 38° | 46° | — | — |
| 2002 | 59° | 43° | 51° | — | — |
| 2001 | 84° | 52° | 68° | — | — |
| 2000 | 56° | 43° | 49° | — | — |
| 1999 | 92° | 59° | 75° | — | — |
| 1998 | 76° | 47° | 61° | — | — |
| 1997 | 85° | 53° | 69° | — | — |
| 1996 | 62° | 49° | 55° | — | — |
| 1995coldest | 53° | 37° | 45° | — | — |
| 1994 | 83° | 61° | 72° | — | — |
| 1993 | 68° | 50° | 59° | — | — |
| 1992 | 78° | 54° | 66° | — | — |
| 1991 | 59° | 43° | 51° | — | — |
| 1990 | 70° | 48° | 59° | 0.01" | — |
| 1989 | 76° | 55° | 65° | — | — |
| 1988 | 57° | 50° | 54° | 0.15" | — |
| 1987 | 81° | 52° | 66° | — | — |
| 1986 | 69° | 43° | 56° | — | — |
| 1985 | 66° | 55° | 61° | — | — |
| 1984 | 83° | 52° | 67° | — | — |
| 1983 | 78° | 47° | 62° | — | — |
| 1982 | 74° | 46° | 60° | — | — |
| 1981 | 77° | 53° | 65° | — | — |
| 1980warmest | 95° | 55° | 75° | — | — |
| 1979 | 70° | 52° | 61° | — | — |
| 1978 | 74° | 46° | 60° | — | — |
| 1977 | 84° | 54° | 69° | — | — |
| 1976 | 68° | 38° | 53° | — | — |
| 1975 | 58° | 40° | 49° | 0.26" | — |
| 1974 | 81° | 46° | 63° | — | — |
| 1973 | 69° | 45° | 57° | — | — |
| 1972 | 73° | 42° | 58° | — | — |
| 1971 | 58° | 39° | 48° | 0.21" | — |
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
Most pleasant months in Rialto, CA: January, February, March, April, May, October, November, December.
What to expect on April 17th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
April 17th outlook →