Weather on December 28
Rialto, CA
55 Years of Data
Avg High
62°F
Avg Low
44°F
Warmest
1998
68°F avg
Coldest
1971
40°F avg
About This Date
December 28th in Rialto, CA typically brings mild winter weather, with average highs around 62°F and lows near 44°F. Over 47 years of records, the warmest December 28th was in 1998 (68°F average), while the coldest was 1971 (40°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 13% of December 28th dates historically, with the wettest December 28th recording 2.9" of rain.
Planning for December 28th in Rialto, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 39° | 53° | — | — |
| 2016 | 65° | 49° | 57° | — | — |
| 2015 | 48° | 32° | 40° | — | — |
| 2014 | 57° | 39° | 48° | — | — |
| 2013 | 72° | 56° | 64° | — | — |
| 2012 | 57° | 40° | 48° | — | — |
| 2011 | 74° | 56° | 65° | — | — |
| 2010 | 64° | 47° | 55° | — | — |
| 2009 | 58° | 47° | 52° | — | — |
| 2008 | 58° | 44° | 51° | — | — |
| 2007 | 51° | 37° | 44° | — | — |
| 2006 | 54° | 47° | 50° | — | — |
| 2005 | 62° | 45° | 53° | — | — |
| 2004 | 50° | 47° | 48° | — | — |
| 2003 | 61° | 36° | 48° | — | — |
| 2002 | 65° | 44° | 54° | — | — |
| 2001 | 65° | 47° | 56° | — | — |
| 2000 | 79° | 55° | 67° | — | — |
| 1999 | 74° | 52° | 63° | — | — |
| 1998warmest | 83° | 53° | 68° | — | — |
| 1997 | 67° | 53° | 60° | — | — |
| 1996 | 63° | 47° | 55° | — | — |
| 1995 | 67° | 44° | 55° | — | — |
| 1994 | 50° | 44° | 47° | — | — |
| 1993 | 67° | 47° | 57° | — | — |
| 1992 | 49° | 43° | 46° | — | — |
| 1991 | 47° | 42° | 44° | — | — |
| 1990 | 56° | 40° | 48° | — | — |
| 1989 | 56° | 49° | 52° | — | — |
| 1988 | 49° | 36° | 42° | 0.05" | — |
| 1987 | 57° | 29° | 43° | — | — |
| 1986 | 69° | 41° | 55° | — | — |
| 1985 | 70° | 41° | 55° | — | — |
| 1984 | 64° | 39° | 52° | 0.97" | — |
| 1983 | 65° | 50° | 57° | — | — |
| 1982 | 63° | 40° | 51° | — | — |
| 1981 | 62° | 37° | 50° | — | — |
| 1980 | 76° | 51° | 63° | — | — |
| 1979 | 67° | 32° | 49° | — | — |
| 1978 | 57° | 44° | 51° | — | — |
| 1977 | 61° | 55° | 58° | 2.9" | — |
| 1976 | 79° | 36° | 57° | — | — |
| 1975 | 67° | 60° | 63° | — | — |
| 1974 | 53° | 39° | 46° | 1.35" | — |
| 1973 | 59° | 50° | 55° | — | — |
| 1972 | 63° | 41° | 52° | 0.28" | — |
| 1971coldest | 45° | 36° | 40° | 0.76" | — |
47 years of data from FONTANA 5 N