Weather on October 16
Fullerton, CA
55 Years of Data
Avg High
81°F
Avg Low
57°F
Warmest
1997
81°F avg
Coldest
1971
56°F avg
About This Date
October 16th in Fullerton, CA typically brings warm fall weather, with average highs around 81°F and lows near 57°F. Over 55 years of records, the warmest October 16th was in 1997 (81°F average), while the coldest was 1971 (56°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 9% of October 16th dates historically. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for October 16th in Fullerton, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 53° | 65° | — | — |
| 2024 | 66° | 63° | 64° | — | — |
| 2023 | 87° | 61° | 74° | — | — |
| 2022 | 75° | 63° | 69° | 0.41" | — |
| 2021 | 94° | 63° | 78° | — | — |
| 2020 | 97° | 64° | 80° | — | — |
| 2019 | 88° | 60° | 74° | — | — |
| 2018 | 87° | 52° | 69° | — | — |
| 2017 | 100° | 63° | 81° | — | — |
| 2016 | 76° | 65° | 70° | — | — |
| 2015 | 83° | 70° | 76° | — | — |
| 2014 | 79° | 62° | 70° | — | — |
| 2013 | 89° | 64° | 77° | — | — |
| 2012 | 93° | 60° | 77° | — | — |
| 2011 | 80° | 57° | 69° | — | — |
| 2010 | 73° | 62° | 68° | 0.03" | — |
| 2009 | 96° | 62° | 79° | — | — |
| 2008 | 91° | 59° | 75° | — | — |
| 2007 | 71° | 57° | 64° | — | — |
| 2006 | 68° | 62° | 65° | — | — |
| 2005 | 73° | 56° | 64° | 0.1" | — |
| 2004 | 73° | 62° | 68° | — | — |
| 2003 | 87° | 57° | 72° | — | — |
| 2002 | 67° | 56° | 61° | — | — |
| 2001 | 85° | 57° | 71° | — | — |
| 2000 | 80° | 50° | 65° | — | — |
| 1999 | 77° | 57° | 67° | — | — |
| 1998 | 76° | 54° | 65° | — | — |
| 1997warmest | 99° | 63° | 81° | — | — |
| 1996 | 74° | 63° | 68° | — | — |
| 1995 | 74° | 56° | 65° | — | — |
| 1994 | 75° | 50° | 63° | — | — |
| 1993 | 73° | 62° | 68° | 0.08" | — |
| 1992 | 75° | 56° | 65° | — | — |
| 1991 | 82° | 61° | 71° | — | — |
| 1990 | 77° | 64° | 71° | — | — |
| 1989 | 79° | 54° | 66° | — | — |
| 1988 | 90° | 58° | 74° | — | — |
| 1987 | 78° | 56° | 67° | — | — |
| 1986 | 75° | 56° | 65° | — | — |
| 1985 | 89° | 61° | 75° | — | — |
| 1984 | 77° | 58° | 67° | — | — |
| 1983 | 79° | 59° | 69° | — | — |
| 1982 | 90° | 48° | 69° | — | — |
| 1981 | 84° | 45° | 64° | — | — |
| 1980 | 71° | 48° | 60° | — | — |
| 1979 | 81° | 49° | 65° | — | — |
| 1978 | 80° | 51° | 66° | — | — |
| 1977 | 82° | 55° | 69° | — | — |
| 1976 | 80° | 58° | 69° | — | — |
| 1975 | 90° | 52° | 71° | — | — |
| 1974 | 103° | 54° | 78° | — | — |
| 1973 | 88° | 49° | 68° | — | — |
| 1972 | 78° | 52° | 65° | — | — |
| 1971coldest | 65° | 48° | 56° | 0.08" | — |
55 years of data from ANAHEIM