Dietmar Rabich / CC BY-SA 4.0
Fullerton, CA Weather on October 11
October 11th in Fullerton, CA typically brings warm fall weather, with average highs around 82°F and lows near 58°F. Over 55 years of records, the warmest October 11th was in 2015 (89°F average), while the coldest was 2000 (60°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 11th dates historically, with the wettest October 11th recording 0.79" of rain. The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
What to Expect on October 11
Planning for October 11th in Fullerton, CA? Stay hydrated and seek shade during peak afternoon hours.
October 11 Weather Records for Fullerton
- •The all-time record high for October 11th in Fullerton, CA is 104°F, set in 1991.
- •The coldest October 11th on record dropped to 47°F in 1973.
- •Temperatures have reached 90°F or higher on October 11th in 10 of the last 55 years.
- •Last year (1971), October 11th was 18°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest October 11 ever in Fullerton?
The warmest October 11 in Fullerton, CA reached 104°F in 1991. That is 22°F above the long-term average high of 82°F.
What was the coldest October 11 ever in Fullerton?
The coldest October 11 in Fullerton, CA dropped to 47°F in 1973. That is 11°F below the long-term average low of 58°F.
What is the average temperature on October 11 in Fullerton?
On October 11, Fullerton averages a high of 82°F and a low of 58°F based on 55 years of NOAA weather observations from ANAHEIM.
How many years of weather data are available for October 11 in Fullerton?
We have 55 years of weather records for October 11 in Fullerton, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
October 11 Weather History in Fullerton
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 78°F | 62°F | 0" | -- |
| 2024 | 86°F | 57°F | 0" | -- |
| 2023 | 77°F | 65°F | 0" | -- |
| 2022 | 81°F | 68°F | 0" | -- |
| 2021 | 81°F | 58°F | 0" | -- |
| 2020 | 82°F | 61°F | 0" | -- |
| 2019 | 90°F | 71°F | 0" | -- |
| 2018 | 82°F | 60°F | 0" | -- |
| 2017 | 80°F | 58°F | 0" | -- |
| 2016 | 88°F | 59°F | 0" | -- |
| 2015 | 102°F | 75°F | 0" | -- |
| 2014 | 87°F | 65°F | 0" | -- |
| 2013 | 77°F | 52°F | 0" | -- |
| 2012 | 73°F | 59°F | 0.02" | -- |
| 2011 | 85°F | 55°F | 0" | -- |
| 2010 | 94°F | 60°F | 0" | -- |
| 2009 | 77°F | 61°F | 0" | -- |
| 2008 | 74°F | 52°F | 0" | -- |
| 2007 | 77°F | 57°F | 0" | -- |
| 2006 | 79°F | 54°F | 0" | -- |
| 2005 | 77°F | 58°F | 0.01" | -- |
| 2004 | 78°F | 56°F | 0" | -- |
| 2003 | 85°F | 64°F | 0" | -- |
| 2002 | 73°F | 60°F | 0" | -- |
| 2001 | 79°F | 56°F | 0" | -- |
| 2000 | 69°F | 51°F | 0.79" | -- |
| 1999 | 94°F | 58°F | 0" | -- |
| 1998 | 78°F | 55°F | 0" | -- |
| 1997 | 73°F | 52°F | 0" | -- |
| 1996 | 84°F | 55°F | 0" | -- |
| 1995 | 80°F | 63°F | 0" | -- |
| 1994 | 89°F | 60°F | 0" | -- |
| 1993 | 80°F | 63°F | 0.02" | -- |
| 1992 | 85°F | 56°F | 0" | -- |
| 1991 | 104°F | 66°F | 0" | -- |
| 1990 | 90°F | 55°F | 0" | -- |
| 1989 | 80°F | 58°F | 0" | -- |
| 1988 | 84°F | 59°F | 0" | -- |
| 1987 | 79°F | 58°F | 0.13" | -- |
| 1986 | 70°F | 62°F | 0.02" | -- |
| 1985 | 78°F | 58°F | 0" | -- |
| 1984 | 74°F | 64°F | 0" | -- |
| 1983 | 97°F | 57°F | 0" | -- |
| 1982 | 93°F | 58°F | 0" | -- |
| 1981 | 70°F | 55°F | 0.11" | -- |
| 1980 | 82°F | 62°F | 0" | -- |
| 1979 | 80°F | 52°F | 0" | -- |
| 1978 | 93°F | 56°F | 0" | -- |
| 1977 | 86°F | 55°F | 0" | -- |
| 1976 | 88°F | 49°F | 0" | -- |
| 1975 | 73°F | 57°F | 0.07" | -- |
| 1974 | 75°F | 50°F | 0" | -- |
| 1973 | 80°F | 47°F | 0" | -- |
| 1972 | 84°F | 49°F | 0" | -- |
| 1971 | 100°F | 62°F | 0" | -- |
Based on 55 years of data from NOAA station: ANAHEIM
Monthly Climate Averages
Historical temperature and precipitation averages for Fullerton, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.