Weather on December 14
Rialto, CA
55 Years of Data
Avg High
64°F
Avg Low
43°F
Warmest
2004
68°F avg
Coldest
2008
41°F avg
About This Date
December 14th in Rialto, CA typically brings mild winter weather, with average highs around 64°F and lows near 43°F. Over 47 years of records, the warmest December 14th was in 2004 (68°F average), while the coldest was 2008 (41°F) — a 27°F range across recorded history. This date has historically been dry, with little recorded precipitation.
Planning for December 14th in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 48° | 64° | — | — |
| 2016 | 73° | 51° | 62° | — | — |
| 2015 | 52° | 38° | 45° | — | — |
| 2014 | 60° | 43° | 51° | — | — |
| 2013 | 64° | 55° | 60° | — | — |
| 2012 | 50° | 40° | 45° | — | — |
| 2011 | 56° | 37° | 46° | — | — |
| 2010 | 69° | 47° | 58° | — | — |
| 2009 | 60° | 41° | 51° | — | — |
| 2008coldest | 49° | 34° | 41° | — | — |
| 2007 | 61° | 45° | 53° | — | — |
| 2006 | 76° | 53° | 64° | — | — |
| 2005 | 72° | 45° | 58° | — | — |
| 2004warmest | 78° | 58° | 68° | — | — |
| 2003 | 53° | 37° | 45° | — | — |
| 2002 | 66° | 49° | 57° | — | — |
| 2001 | 46° | 39° | 43° | — | — |
| 2000 | 52° | 43° | 47° | — | — |
| 1999 | 59° | 48° | 54° | — | — |
| 1998 | 66° | 44° | 55° | — | — |
| 1997 | 70° | 42° | 56° | — | — |
| 1996 | 60° | 58° | 59° | — | — |
| 1995 | 69° | 43° | 56° | — | — |
| 1994 | 54° | 38° | 46° | — | — |
| 1993 | 53° | 38° | 45° | — | — |
| 1992 | 58° | 37° | 47° | — | — |
| 1991 | 65° | 50° | 57° | — | — |
| 1990 | 60° | 41° | 51° | — | — |
| 1989 | 72° | 39° | 55° | — | — |
| 1988 | 59° | 41° | 50° | — | — |
| 1987 | 52° | 41° | 46° | — | — |
| 1986 | 66° | 42° | 54° | — | — |
| 1985 | 66° | 34° | 50° | — | — |
| 1984 | 59° | 45° | 52° | — | — |
| 1983 | 79° | 42° | 60° | — | — |
| 1982 | 70° | 35° | 52° | — | — |
| 1981 | 77° | 42° | 60° | — | — |
| 1980 | 80° | 42° | 61° | — | — |
| 1979 | 72° | 38° | 55° | — | — |
| 1978 | 76° | 37° | 56° | — | — |
| 1977 | 82° | 44° | 63° | — | — |
| 1976 | 78° | 40° | 59° | — | — |
| 1975 | 50° | 44° | 47° | — | — |
| 1974 | 74° | 43° | 58° | — | — |
| 1973 | 58° | 48° | 53° | — | — |
| 1972 | 65° | 28° | 46° | — | — |
| 1971 | 59° | 36° | 47° | — | — |
47 years of data from FONTANA 5 N