Weather on December 19
Fullerton, CA
55 Years of Data
About This Date
December 19th in Fullerton, CA typically brings mild winter weather, with average highs around 69°F and lows near 47°F. Over 55 years of records, the warmest December 19th was in 2004 (74°F average), while the coldest was 1975 (46°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 16% of December 19th dates historically, with the wettest December 19th recording 4.62" 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 19th in Fullerton, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 50° | 62° | — | — |
| 2024 | 80° | 48° | 64° | — | — |
| 2023 | 68° | 58° | 63° | — | — |
| 2022 | 72° | 44° | 58° | — | — |
| 2021 | 69° | 45° | 57° | — | — |
| 2020 | 77° | 49° | 63° | — | — |
| 2019 | 69° | 41° | 55° | — | — |
| 2018 | 79° | 52° | 65° | — | — |
| 2017 | 73° | 46° | 60° | — | — |
| 2016 | 70° | 56° | 63° | — | — |
| 2015 | 72° | 43° | 57° | — | — |
| 2014 | 68° | 48° | 58° | — | — |
| 2013 | 62° | 52° | 57° | 1.14" | — |
| 2012 | 62° | 36° | 49° | — | — |
| 2011 | 60° | 48° | 54° | — | — |
| 2010 | 59° | — | — | 4.62" | — |
| 2009 | 79° | 63° | 71° | — | — |
| 2008 | 62° | 40° | 51° | — | — |
| 2007 | 65° | 54° | 59° | 1.17" | — |
| 2006 | 62° | 38° | 50° | — | — |
| 2005 | 81° | 47° | 64° | — | — |
| 2004warmest | 85° | 64° | 74° | — | — |
| 2003 | 76° | 48° | 62° | — | — |
| 2002 | 60° | 39° | 50° | — | — |
| 2001 | 73° | 40° | 56° | — | — |
| 2000 | 78° | 65° | 71° | — | — |
| 1999 | 83° | 44° | 63° | — | — |
| 1998 | 60° | 54° | 57° | — | — |
| 1997 | 69° | 43° | 56° | 0.74" | — |
| 1996 | 78° | 51° | 65° | — | — |
| 1995 | 65° | 46° | 55° | — | — |
| 1994 | 74° | 40° | 57° | — | — |
| 1993 | 67° | 49° | 58° | 0.51" | — |
| 1992 | 62° | 45° | 53° | — | — |
| 1991 | 63° | 52° | 57° | — | — |
| 1990 | 62° | 44° | 53° | — | — |
| 1989 | 67° | 49° | 58° | — | — |
| 1988 | 60° | 43° | 51° | 0.05" | — |
| 1987 | 64° | 48° | 56° | 0.08" | — |
| 1986 | 68° | 47° | 57° | — | — |
| 1985 | 83° | 50° | 66° | — | — |
| 1984 | 60° | 45° | 52° | 1.47" | — |
| 1983 | 62° | 46° | 54° | — | — |
| 1982 | 74° | 43° | 58° | — | — |
| 1981 | 74° | 45° | 59° | — | — |
| 1980 | 65° | 44° | 54° | — | — |
| 1979 | 71° | 36° | 53° | — | — |
| 1978 | 54° | 40° | 47° | 0.64" | — |
| 1977 | 68° | 43° | 55° | — | — |
| 1976 | 71° | 46° | 59° | — | — |
| 1975coldest | 61° | 32° | 46° | — | — |
| 1974 | 70° | 40° | 55° | — | — |
| 1973 | 75° | 53° | 64° | — | — |
| 1972 | 69° | 44° | 57° | — | — |
| 1971 | 67° | 40° | 53° | — | — |
Fullerton, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Fullerton, CA Monthly Precipitation
Average rainfall per month, in inches.
Fullerton, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Fullerton, CA
Fullerton, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.