Weather on December 16
Riverside, CA
55 Years of Data
Avg High
68°F
Avg Low
43°F
Warmest
1998
69°F avg
Coldest
1975
38°F avg
About This Date
December 16th in Riverside, CA typically brings mild winter weather, with average highs around 68°F and lows near 43°F — a 25°F daily swing. Over 55 years of records, the warmest December 16th was in 1998 (69°F average), while the coldest was 1975 (38°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 18% of December 16th dates historically, with the wettest December 16th recording 2.57" of rain. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
Planning for December 16th in Riverside, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 45° | 62° | — | — |
| 2024 | 73° | 41° | 57° | — | — |
| 2023 | 81° | 47° | 64° | — | — |
| 2022 | 65° | 43° | 54° | — | — |
| 2021 | 57° | 34° | 45° | — | — |
| 2020 | 75° | 41° | 58° | — | — |
| 2019 | 62° | 39° | 51° | — | — |
| 2018 | 73° | 41° | 57° | — | — |
| 2017 | 69° | 46° | 58° | — | — |
| 2016 | 62° | 47° | 54° | 1.17" | — |
| 2015 | 61° | 39° | 50° | — | — |
| 2014 | 67° | 41° | 54° | 0.03" | — |
| 2013 | 84° | 52° | 68° | — | — |
| 2012 | 54° | 49° | 51° | — | — |
| 2011 | 68° | 38° | 53° | — | — |
| 2010 | 61° | 49° | 55° | 0.43" | — |
| 2009 | 75° | 43° | 59° | — | — |
| 2008 | 59° | 42° | 51° | 0.25" | — |
| 2007 | 67° | 41° | 54° | — | — |
| 2006 | 60° | 44° | 52° | 0.2" | — |
| 2005 | 61° | 42° | 51° | — | — |
| 2004 | 75° | 53° | 64° | — | — |
| 2003 | 68° | 35° | 52° | — | — |
| 2002 | 65° | 49° | 57° | 2.57" | — |
| 2001 | 69° | 35° | 52° | — | — |
| 2000 | 79° | 45° | 62° | — | — |
| 1999 | 82° | 46° | 64° | — | — |
| 1998warmest | 81° | 58° | 69° | — | — |
| 1997 | 74° | 39° | 56° | — | — |
| 1996 | 75° | 44° | 60° | — | — |
| 1995 | 62° | 45° | 53° | 0.03" | — |
| 1994 | 72° | 37° | 54° | — | — |
| 1993 | 60° | 34° | 47° | — | — |
| 1992 | 62° | 34° | 48° | — | — |
| 1991 | 79° | 43° | 61° | — | — |
| 1990 | 58° | 37° | 47° | — | — |
| 1989 | 65° | 39° | 52° | — | — |
| 1988 | 52° | 45° | 48° | 2.57" | — |
| 1987 | 49° | 40° | 44° | 0.97" | — |
| 1986 | 69° | 45° | 57° | — | — |
| 1985 | 73° | 44° | 59° | — | — |
| 1984 | 54° | 38° | 46° | 1.12" | — |
| 1983 | 67° | 47° | 57° | — | — |
| 1982 | 71° | 36° | 53° | — | — |
| 1981 | 71° | 44° | 58° | — | — |
| 1980 | 85° | 50° | 67° | — | — |
| 1979 | 80° | 39° | 60° | — | — |
| 1978 | 68° | 38° | 53° | — | — |
| 1977 | 60° | 46° | 53° | — | — |
| 1976 | 79° | 44° | 61° | — | — |
| 1975coldest | 39° | 37° | 38° | — | — |
| 1974 | 75° | 48° | 62° | — | — |
| 1973 | 77° | 41° | 59° | — | — |
| 1972 | 63° | 45° | 54° | — | — |
| 1971 | 62° | 35° | 49° | — | — |
55 years of data from RIVERSIDE CITRUS EXP