Weather on December 18
Norwalk, CA
55 Years of Data
Avg High
68°F
Avg Low
46°F
Warmest
2024
67°F avg
Coldest
2006
48°F avg
About This Date
December 18th in Norwalk, CA typically brings mild winter weather, with average highs around 68°F and lows near 46°F. Over 55 years of records, the warmest December 18th was in 2024 (67°F average), while the coldest was 2006 (48°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 16% of December 18th dates historically, with the wettest December 18th recording 3.53" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Norwalk, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 49° | 63° | — | — |
| 2024warmest | 86° | 48° | 67° | — | — |
| 2023 | 74° | 56° | 65° | — | — |
| 2022 | 65° | 41° | 53° | — | — |
| 2021 | 71° | 38° | 54° | — | — |
| 2020 | 73° | 48° | 61° | — | — |
| 2019 | 65° | 40° | 52° | — | — |
| 2018 | 70° | 53° | 61° | — | — |
| 2017 | 74° | 44° | 59° | — | — |
| 2016 | 69° | 36° | 52° | — | — |
| 2015 | 74° | 40° | 57° | — | — |
| 2014 | 65° | 48° | 56° | — | — |
| 2013 | 71° | 55° | 63° | — | — |
| 2012 | 65° | 52° | 58° | 0.43" | — |
| 2011 | 64° | 48° | 56° | — | — |
| 2010 | 61° | 57° | 59° | 1.8" | — |
| 2009 | 80° | 45° | 62° | — | — |
| 2008 | 58° | 40° | 49° | — | — |
| 2007 | 62° | 54° | 58° | 1.02" | — |
| 2006coldest | 61° | 36° | 48° | — | — |
| 2005 | 63° | 49° | 56° | — | — |
| 2004 | 83° | 41° | 62° | — | — |
| 2003 | 79° | 45° | 62° | — | — |
| 2002 | 63° | 40° | 51° | — | — |
| 2001 | 70° | 40° | 55° | — | — |
| 2000 | 76° | 50° | 63° | — | — |
| 1999 | 73° | 45° | 59° | — | — |
| 1998 | 61° | 56° | 58° | — | — |
| 1997 | 60° | 48° | 54° | 3.53" | — |
| 1996 | 68° | 43° | 55° | — | — |
| 1995 | 64° | 41° | 53° | — | — |
| 1994 | 65° | 49° | 57° | — | — |
| 1993 | 64° | 42° | 53° | 0.05" | — |
| 1992 | 61° | 44° | 52° | — | — |
| 1991 | 67° | 55° | 61° | — | — |
| 1990 | 63° | 39° | 51° | — | — |
| 1989 | 65° | 46° | 55° | — | — |
| 1988 | 57° | 48° | 53° | 0.36" | — |
| 1987 | 67° | 39° | 53° | — | — |
| 1986 | 67° | 47° | 57° | — | — |
| 1985 | 85° | 46° | 65° | — | — |
| 1984 | 58° | 44° | 51° | 3.12" | — |
| 1983 | 65° | 47° | 56° | — | — |
| 1982 | 70° | 44° | 57° | — | — |
| 1981 | 70° | 49° | 59° | — | — |
| 1980 | 63° | 51° | 57° | — | — |
| 1979 | 75° | 44° | 60° | — | — |
| 1978 | 56° | 51° | 53° | 0.97" | — |
| 1977 | 64° | 48° | 56° | 0.25" | — |
| 1976 | 70° | 47° | 58° | — | — |
| 1975 | 73° | 37° | 55° | — | — |
| 1974 | 73° | 43° | 58° | — | — |
| 1973 | 72° | 46° | 59° | — | — |
| 1972 | 70° | 44° | 57° | — | — |
| 1971 | 63° | 43° | 53° | — | — |
55 years of data from FULLERTON MUNI AP