Weather on December 31
Riverside, CA
55 Years of Data
Avg High
65°F
Avg Low
41°F
Warmest
1997
66°F avg
Coldest
1988
41°F avg
About This Date
December 31st in Riverside, CA typically brings mild winter weather, with average highs around 65°F and lows near 41°F. Over 55 years of records, the warmest December 31st was in 1997 (66°F average), while the coldest was 1988 (41°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 16% of December 31st dates historically, with the wettest December 31st recording 1.93" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Riverside, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 54° | 60° | 0.74" | — |
| 2024 | 68° | 42° | 55° | — | — |
| 2023 | 61° | 46° | 53° | — | — |
| 2022 | 60° | 53° | 57° | 1.9" | — |
| 2021 | 61° | 43° | 52° | — | — |
| 2020 | 64° | 36° | 50° | — | — |
| 2019 | 67° | 46° | 56° | — | — |
| 2018 | 58° | 40° | 49° | — | — |
| 2017 | 72° | 45° | 58° | — | — |
| 2016 | 57° | 46° | 52° | 1.93" | — |
| 2015 | 61° | 38° | 49° | — | — |
| 2014 | 51° | 41° | 46° | — | — |
| 2013 | 77° | 38° | 57° | — | — |
| 2012 | 62° | 33° | 48° | — | — |
| 2011 | 83° | 43° | 63° | — | — |
| 2010 | 55° | 31° | 43° | — | — |
| 2009 | 69° | 41° | 55° | — | — |
| 2008 | 78° | 41° | 60° | — | — |
| 2007 | 67° | 42° | 54° | — | — |
| 2006 | 66° | 36° | 51° | — | — |
| 2005 | 62° | 44° | 53° | 0.36" | — |
| 2004 | 59° | 43° | 51° | 0.81" | — |
| 2003 | 68° | 38° | 53° | — | — |
| 2002 | 62° | 39° | 51° | — | — |
| 2001 | 60° | 51° | 56° | — | — |
| 2000 | 84° | 41° | 63° | — | — |
| 1999 | 57° | 43° | 50° | 0.25" | — |
| 1998 | 67° | 44° | 55° | — | — |
| 1997warmest | 83° | 50° | 66° | — | — |
| 1996 | 67° | 50° | 58° | — | — |
| 1995 | 68° | 44° | 56° | — | — |
| 1994 | 64° | 36° | 50° | — | — |
| 1993 | 74° | 39° | 56° | — | — |
| 1992 | 65° | 36° | 50° | — | — |
| 1991 | 64° | 37° | 51° | — | — |
| 1990 | 68° | 32° | 50° | — | — |
| 1989 | 74° | 38° | 56° | — | — |
| 1988coldest | 52° | 31° | 41° | 0.36" | — |
| 1987 | 57° | 32° | 45° | — | — |
| 1986 | 68° | 40° | 54° | — | — |
| 1985 | 64° | 48° | 56° | — | — |
| 1984 | 68° | 41° | 55° | — | — |
| 1983 | 74° | 49° | 61° | — | — |
| 1982 | 60° | 36° | 48° | — | — |
| 1981 | 53° | 48° | 51° | 0.13" | — |
| 1980 | 79° | 48° | 63° | — | — |
| 1979 | 71° | 45° | 58° | — | — |
| 1978 | 65° | 36° | 50° | — | — |
| 1977 | 63° | 48° | 55° | — | — |
| 1976 | 53° | 47° | 50° | 0.53" | — |
| 1975 | 67° | 46° | 56° | — | — |
| 1974 | 56° | 36° | 46° | — | — |
| 1973 | 69° | 37° | 53° | — | — |
| 1972 | 66° | 30° | 48° | — | — |
| 1971 | 56° | 42° | 49° | — | — |
55 years of data from RIVERSIDE CITRUS EXP