Weather on December 3
Rialto, CA
55 Years of Data
Avg High
68°F
Avg Low
46°F
Warmest
2003
69°F avg
Coldest
2011
47°F avg
About This Date
December 3rd in Rialto, CA typically brings mild winter weather, with average highs around 68°F and lows near 46°F. Over 47 years of records, the warmest December 3rd was in 2003 (69°F average), while the coldest was 2011 (47°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 9% of December 3rd dates historically, with the wettest December 3rd recording 1.32" of rain.
Planning for December 3rd in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 44° | 56° | — | — |
| 2016 | 64° | 47° | 55° | — | — |
| 2015 | 73° | 52° | 62° | — | — |
| 2014 | 60° | 55° | 58° | — | — |
| 2013 | 63° | 49° | 56° | — | — |
| 2012 | 60° | 50° | 55° | — | — |
| 2011coldest | 54° | 40° | 47° | — | — |
| 2010 | 72° | 52° | 62° | — | — |
| 2009 | 66° | 39° | 53° | — | — |
| 2008 | 73° | 44° | 59° | — | — |
| 2007 | 67° | 48° | 57° | — | — |
| 2006 | 61° | 48° | 54° | — | — |
| 2005 | 61° | 45° | 53° | — | — |
| 2004 | 60° | 44° | 52° | — | — |
| 2003warmest | 82° | 55° | 69° | — | — |
| 2002 | 71° | 44° | 58° | — | — |
| 2001 | 60° | 42° | 51° | — | — |
| 2000 | 79° | 55° | 67° | — | — |
| 1999 | 60° | 49° | 54° | — | — |
| 1998 | 53° | 45° | 49° | — | — |
| 1997 | 69° | 45° | 57° | — | — |
| 1996 | 76° | 46° | 61° | — | — |
| 1995 | 76° | 49° | 62° | — | — |
| 1994 | 62° | 44° | 53° | — | — |
| 1993 | 72° | 54° | 63° | — | — |
| 1992 | 55° | 44° | 50° | — | — |
| 1991 | 60° | 50° | 55° | — | — |
| 1990 | 67° | 54° | 60° | — | — |
| 1989 | 73° | 39° | 56° | — | — |
| 1988 | 73° | 44° | 59° | — | — |
| 1987 | 75° | 43° | 59° | — | — |
| 1986 | 78° | 43° | 60° | — | — |
| 1985 | 64° | 46° | 55° | 0.1" | — |
| 1984 | 59° | — | — | 0.1" | — |
| 1983 | 58° | 50° | 54° | 1.32" | — |
| 1982 | 70° | 38° | 54° | — | — |
| 1981 | 81° | 44° | 62° | — | — |
| 1980 | 62° | 41° | 52° | — | — |
| 1979 | 84° | 46° | 65° | — | — |
| 1978 | 65° | 33° | 49° | — | — |
| 1977 | 81° | 44° | 62° | — | — |
| 1976 | 84° | 39° | 62° | — | — |
| 1975 | 74° | 58° | 66° | — | — |
| 1974 | 63° | 47° | 55° | — | — |
| 1973 | 69° | 38° | 53° | — | — |
| 1972 | 60° | 42° | 51° | — | — |
| 1971 | 58° | 46° | 52° | 0.18" | — |
47 years of data from FONTANA 5 N