Weather on January 19
Fullerton, CA
55 Years of Data
About This Date
January 19th in Fullerton, CA typically brings pleasant winter weather, with average highs around 70°F and lows near 48°F. Over 56 years of records, the warmest January 19th was in 2005 (77°F average), while the coldest was 1979 (49°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 14% of January 19th dates historically, with the wettest January 19th recording 4.24" of rain. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for January 19th in Fullerton, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 77° | 50° | 64° | — | — |
| 2025 | 60° | 44° | 52° | — | — |
| 2024 | 70° | 52° | 61° | — | — |
| 2023 | 64° | 44° | 54° | — | — |
| 2022 | 69° | 54° | 61° | — | — |
| 2021 | 69° | 51° | 60° | — | — |
| 2020 | 78° | 49° | 63° | — | — |
| 2019 | 82° | 49° | 65° | — | — |
| 2018 | 73° | 53° | 63° | — | — |
| 2017 | 62° | 52° | 57° | 2.03" | — |
| 2016 | 66° | 54° | 60° | — | — |
| 2015 | 72° | 50° | 61° | — | — |
| 2014 | 81° | 51° | 66° | — | — |
| 2013 | 81° | 52° | 66° | — | — |
| 2012 | 66° | 41° | 54° | — | — |
| 2011 | 67° | 50° | 58° | — | — |
| 2010 | 61° | 37° | 49° | 4.24" | — |
| 2009 | 83° | 58° | 70° | — | — |
| 2008 | 77° | 44° | 61° | — | — |
| 2007 | 67° | 44° | 55° | — | — |
| 2006 | 68° | 46° | 57° | — | — |
| 2005warmest | 86° | 68° | 77° | — | — |
| 2004 | 67° | 52° | 59° | — | — |
| 2003 | 76° | 45° | 60° | — | — |
| 2002 | 67° | 41° | 54° | — | — |
| 2001 | 76° | 40° | 58° | — | — |
| 2000 | 77° | 53° | 65° | — | — |
| 1999 | 62° | 54° | 58° | — | — |
| 1998 | 64° | 51° | 58° | 0.38" | — |
| 1997 | 77° | 47° | 62° | — | — |
| 1996 | 66° | 52° | 59° | 0.2" | — |
| 1995 | 67° | 43° | 55° | — | — |
| 1994 | 80° | 43° | 61° | — | — |
| 1993 | 59° | 43° | 51° | 0.08" | — |
| 1992 | 70° | 48° | 59° | — | — |
| 1991 | 71° | 45° | 58° | — | — |
| 1990 | 61° | 42° | 51° | — | — |
| 1989 | 79° | 47° | 63° | — | — |
| 1988 | 65° | 38° | 51° | — | — |
| 1987 | 64° | 43° | 53° | — | — |
| 1986 | 70° | 54° | 62° | — | — |
| 1985 | 65° | 51° | 58° | — | — |
| 1984 | 65° | 45° | 55° | — | — |
| 1983 | 66° | 52° | 59° | 0.2" | — |
| 1982 | 63° | 44° | 53° | — | — |
| 1981 | 78° | 47° | 62° | — | — |
| 1980 | 65° | 38° | 51° | — | — |
| 1979coldest | 63° | 35° | 49° | — | — |
| 1978 | 61° | 50° | 55° | 2.21" | — |
| 1977 | 79° | 51° | 65° | — | — |
| 1976 | 82° | 42° | 62° | — | — |
| 1975 | 86° | 44° | 65° | — | — |
| 1974 | 64° | 53° | 59° | — | — |
| 1973 | 61° | 41° | 51° | 0.28" | — |
| 1972 | 61° | 41° | 51° | — | — |
| 1971 | 82° | 54° | 68° | — | — |
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.