Weather on December 16
Riverside, CA
55 Years of Data
Avg High
69°F
Avg Low
42°F
Warmest
1998
76°F avg
Coldest
1971
45°F avg
About This Date
December 16th in Riverside, CA typically brings mild winter weather, with average highs around 69°F and lows near 42°F — a 27°F daily swing. Over 55 years of records, the warmest December 16th was in 1998 (76°F average), while the coldest was 1971 (45°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 16% of December 16th dates historically, with the wettest December 16th recording 2.77" of rain. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for December 16th in Riverside, CA? Great weather for outdoor activities.
| 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° | 40° | 50° | — | — |
| 2014 | 60° | 49° | 54° | 0.03" | — |
| 2013 | 84° | 52° | 68° | — | — |
| 2012 | 55° | 50° | 53° | — | — |
| 2011 | 65° | 42° | 53° | — | — |
| 2010 | 61° | 49° | 55° | 0.43" | — |
| 2009 | 75° | 43° | 59° | — | — |
| 2008 | 56° | 44° | 50° | 0.03" | — |
| 2007 | 71° | 35° | 53° | — | — |
| 2006 | 57° | 44° | 51° | 0.28" | — |
| 2005 | 58° | 40° | 49° | — | — |
| 2004 | 71° | 58° | 64° | — | — |
| 2003 | 67° | 39° | 53° | — | — |
| 2002 | 64° | 44° | 54° | 2.77" | — |
| 2001 | 66° | 32° | 49° | — | — |
| 2000 | 78° | 43° | 60° | — | — |
| 1999 | 80° | 44° | 62° | — | — |
| 1998warmest | 82° | 69° | 76° | — | — |
| 1997 | 74° | 40° | 57° | — | — |
| 1996 | 77° | 38° | 57° | — | — |
| 1995 | 66° | 45° | 55° | 0.18" | — |
| 1994 | 72° | 37° | 54° | — | — |
| 1993 | 63° | 35° | 49° | — | — |
| 1992 | 62° | 34° | 48° | — | — |
| 1991 | 79° | 44° | 61° | — | — |
| 1990 | 62° | 39° | 51° | — | — |
| 1989 | 68° | 42° | 55° | — | — |
| 1988 | 52° | 45° | 48° | 1.5" | — |
| 1987 | 50° | 40° | 45° | 0.71" | — |
| 1986 | 72° | 42° | 57° | — | — |
| 1985 | 75° | 45° | 60° | — | — |
| 1984 | 58° | 32° | 45° | — | — |
| 1983 | 68° | 40° | 54° | — | — |
| 1982 | 69° | 33° | 51° | — | — |
| 1981 | 72° | 41° | 56° | — | — |
| 1980 | 85° | 49° | 67° | — | — |
| 1979 | 79° | 34° | 56° | — | — |
| 1978 | 69° | 35° | 52° | — | — |
| 1977 | 66° | 45° | 55° | — | — |
| 1976 | 76° | 50° | 63° | — | — |
| 1975 | 67° | 34° | 50° | — | — |
| 1974 | 78° | 49° | 63° | — | — |
| 1973 | 78° | 39° | 59° | — | — |
| 1972 | 69° | 38° | 53° | — | — |
| 1971coldest | 62° | 29° | 45° | — | — |
55 years of data from RIVERSIDE MUNI AP