Weather on December 17
Irvine, CA
55 Years of Data
Avg High
69°F
Avg Low
43°F
Warmest
1998
68°F avg
Coldest
1984
46°F avg
About This Date
December 17th in Irvine, CA typically brings mild winter weather, with average highs around 69°F and lows near 43°F — a 26°F daily swing. Over 55 years of records, the warmest December 17th was in 1998 (68°F average), while the coldest was 1984 (46°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 17th dates historically, with the wettest December 17th recording 1.47" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 17th in Irvine, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 50° | 60° | — | — |
| 2024 | 74° | 47° | 60° | — | — |
| 2023 | 76° | 50° | 63° | — | — |
| 2022 | 70° | 45° | 57° | — | — |
| 2021 | 70° | 46° | 58° | — | — |
| 2020 | 72° | 50° | 61° | — | — |
| 2019 | 69° | 55° | 62° | — | — |
| 2018 | 67° | 54° | 60° | — | — |
| 2017 | 72° | 50° | 61° | — | — |
| 2016 | 65° | 40° | 52° | — | — |
| 2015 | 66° | 42° | 54° | — | — |
| 2014 | 67° | 50° | 58° | 0.25" | — |
| 2013 | 80° | 53° | 67° | — | — |
| 2012 | 68° | 43° | 55° | 0.3" | — |
| 2011 | 60° | 36° | 48° | — | — |
| 2010 | 65° | 52° | 58° | 0.58" | — |
| 2009 | 73° | 46° | 60° | — | — |
| 2008 | 53° | 40° | 46° | 1.47" | — |
| 2007 | 63° | 45° | 54° | — | — |
| 2006 | 59° | 39° | 49° | — | — |
| 2005 | 60° | 44° | 52° | — | — |
| 2004 | 68° | 55° | 62° | — | — |
| 2003 | 75° | 55° | 65° | — | — |
| 2002 | 67° | 40° | 53° | 0.2" | — |
| 2001 | 60° | 38° | 49° | — | — |
| 2000 | 77° | 47° | 62° | — | — |
| 1999 | 78° | 42° | 60° | — | — |
| 1998warmest | 88° | 49° | 68° | — | — |
| 1997 | 78° | 43° | 60° | — | — |
| 1996 | 80° | 43° | 61° | — | — |
| 1995 | 71° | 38° | 54° | — | — |
| 1994 | 75° | 35° | 55° | — | — |
| 1993 | 67° | 36° | 51° | — | — |
| 1992 | 63° | 35° | 49° | — | — |
| 1991 | 66° | 45° | 55° | — | — |
| 1990 | 64° | 33° | 49° | — | — |
| 1989 | 65° | 35° | 50° | — | — |
| 1988 | 61° | 43° | 52° | — | — |
| 1987 | 56° | 46° | 51° | 0.28" | — |
| 1986 | 70° | 41° | 55° | — | — |
| 1985 | 79° | 52° | 65° | — | — |
| 1984coldest | 59° | 33° | 46° | — | — |
| 1983 | 64° | 50° | 57° | — | — |
| 1982 | 65° | 33° | 49° | — | — |
| 1981 | 67° | 42° | 54° | — | — |
| 1980 | 78° | 45° | 61° | — | — |
| 1979 | 82° | 34° | 58° | — | — |
| 1978 | 59° | 45° | 52° | — | — |
| 1977 | 70° | 43° | 56° | — | — |
| 1976 | 82° | 39° | 61° | — | — |
| 1975 | 67° | 38° | 52° | — | — |
| 1974 | 82° | 43° | 62° | — | — |
| 1973 | 74° | 39° | 56° | — | — |
| 1972 | 65° | 37° | 51° | — | — |
| 1971 | 70° | 34° | 52° | — | — |
55 years of data from IRVINE RCH