Weather on December 30
Irvine, CA
55 Years of Data
Avg High
67°F
Avg Low
43°F
Warmest
2025
72°F avg
Coldest
1987
44°F avg
About This Date
December 30th in Irvine, CA typically brings mild winter weather, with average highs around 67°F and lows near 43°F. Over 55 years of records, the warmest December 30th was in 2025 (72°F average), while the coldest was 1987 (44°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 20% of December 30th dates historically, with the wettest December 30th recording 0.89" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for December 30th in Irvine, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 79° | 65° | 72° | — | — |
| 2024 | 67° | 54° | 60° | — | — |
| 2023 | 65° | 51° | 58° | 0.71" | — |
| 2022 | 58° | 48° | 53° | — | — |
| 2021 | 60° | 51° | 56° | 0.71" | — |
| 2020 | 68° | 45° | 56° | — | — |
| 2019 | 66° | 52° | 59° | — | — |
| 2018 | 66° | 41° | 54° | — | — |
| 2017 | 80° | 47° | 63° | — | — |
| 2016 | 69° | 45° | 57° | 0.38" | — |
| 2015 | 65° | 38° | 51° | — | — |
| 2014 | 58° | 44° | 51° | 0.13" | — |
| 2013 | 79° | 49° | 64° | — | — |
| 2012 | 64° | 37° | 51° | 0.2" | — |
| 2011 | 70° | 45° | 57° | — | — |
| 2010 | 59° | 30° | 45° | — | — |
| 2009 | 58° | 43° | 50° | — | — |
| 2008 | 72° | 46° | 59° | — | — |
| 2007 | 63° | 42° | 52° | — | — |
| 2006 | 62° | 52° | 57° | — | — |
| 2005 | 69° | 46° | 58° | — | — |
| 2004 | 60° | 44° | 52° | — | — |
| 2003 | 65° | 45° | 55° | — | — |
| 2002 | 68° | 55° | 62° | — | — |
| 2001 | 58° | 50° | 54° | 0.89" | — |
| 2000 | 73° | 39° | 56° | — | — |
| 1999 | 68° | 36° | 52° | — | — |
| 1998 | 77° | 41° | 59° | — | — |
| 1997 | 84° | 50° | 67° | — | — |
| 1996 | 66° | 49° | 57° | — | — |
| 1995 | 69° | 47° | 58° | — | — |
| 1994 | 61° | 38° | 49° | — | — |
| 1993 | 76° | 40° | 58° | — | — |
| 1992 | 62° | 43° | 52° | 0.36" | — |
| 1991 | 61° | 42° | 51° | 0.69" | — |
| 1990 | 66° | 32° | 49° | — | — |
| 1989 | 71° | 36° | 53° | — | — |
| 1988 | 60° | 29° | 44° | — | — |
| 1987coldest | 56° | 32° | 44° | 0.05" | — |
| 1986 | 77° | 36° | 56° | — | — |
| 1985 | 73° | 50° | 62° | — | — |
| 1984 | 64° | 39° | 52° | — | — |
| 1983 | 74° | 42° | 58° | — | — |
| 1982 | — | 47° | — | — | — |
| 1981 | 56° | 41° | 48° | 0.46" | — |
| 1980 | 97° | 41° | 69° | — | — |
| 1979 | 66° | 48° | 57° | — | — |
| 1978 | 55° | 38° | 46° | — | — |
| 1977 | 64° | 55° | 60° | 0.2" | — |
| 1976 | 66° | 42° | 54° | — | — |
| 1975 | 77° | 37° | 57° | — | — |
| 1974 | 59° | 36° | 47° | — | — |
| 1973 | 64° | 45° | 54° | — | — |
| 1972 | 64° | 32° | 48° | — | — |
| 1971 | 65° | 30° | 47° | — | — |
55 years of data from IRVINE RCH