Dietmar Rabich / CC BY-SA 4.0
Costa Mesa, CA Weather on October 10
October 10th in Costa Mesa, CA typically brings pleasant fall weather, with average highs around 79°F and lows near 60°F. Over 55 years of records, the warmest October 10th was in 2015 (86°F average), while the coldest was 2013 (61°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of October 10th dates historically. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
What to Expect on October 10
Planning for October 10th in Costa Mesa, CA? Great weather for outdoor activities.
October 10 Weather Records for Costa Mesa
- •The all-time record high for October 10th in Costa Mesa, CA is 101°F, set in 1991.
- •The coldest October 10th on record dropped to 50°F in 1973.
- •Temperatures have reached 90°F or higher on October 10th in 8 of the last 55 years.
- •Last year (1971), October 10th was 17°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest October 10 ever in Costa Mesa?
The warmest October 10 in Costa Mesa, CA reached 101°F in 1991. That is 22°F above the long-term average high of 79°F.
What was the coldest October 10 ever in Costa Mesa?
The coldest October 10 in Costa Mesa, CA dropped to 50°F in 1973. That is 10°F below the long-term average low of 60°F.
What is the average temperature on October 10 in Costa Mesa?
On October 10, Costa Mesa averages a high of 79°F and a low of 60°F based on 55 years of NOAA weather observations from SANTA ANA JOHN WAYNE AP.
How many years of weather data are available for October 10 in Costa Mesa?
We have 55 years of weather records for October 10 in Costa Mesa, 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 10 Weather History in Costa Mesa
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 79°F | 65°F | 0" | -- |
| 2024 | 78°F | 62°F | 0" | -- |
| 2023 | 74°F | 62°F | 0" | -- |
| 2022 | 79°F | 69°F | 0" | -- |
| 2021 | 77°F | 59°F | 0" | -- |
| 2020 | 77°F | 68°F | 0" | -- |
| 2019 | 78°F | 65°F | 0" | -- |
| 2018 | 73°F | 62°F | 0" | -- |
| 2017 | 84°F | 60°F | 0" | -- |
| 2016 | 83°F | 63°F | 0" | -- |
| 2015 | 100°F | 72°F | 0" | -- |
| 2014 | 80°F | 65°F | 0" | -- |
| 2013 | 70°F | 52°F | 0" | -- |
| 2012 | 76°F | 64°F | 0" | -- |
| 2011 | 74°F | 57°F | 0" | -- |
| 2010 | 91°F | 63°F | 0" | -- |
| 2009 | 70°F | 60°F | 0" | -- |
| 2008 | 74°F | 59°F | 0" | -- |
| 2007 | 72°F | 55°F | 0" | -- |
| 2006 | 72°F | 61°F | 0" | -- |
| 2005 | 80°F | 57°F | 0" | -- |
| 2004 | 71°F | 61°F | 0" | -- |
| 2003 | 72°F | 65°F | 0" | -- |
| 2002 | 69°F | 61°F | 0" | -- |
| 2001 | 74°F | 58°F | 0" | -- |
| 2000 | 68°F | 58°F | 0" | -- |
| 1999 | 91°F | 60°F | 0" | -- |
| 1998 | 78°F | 57°F | 0" | -- |
| 1997 | 78°F | 60°F | 0" | -- |
| 1996 | 78°F | 58°F | 0" | -- |
| 1995 | 79°F | 56°F | 0" | -- |
| 1994 | 94°F | 60°F | 0" | -- |
| 1993 | 77°F | 60°F | 0" | -- |
| 1992 | 84°F | 61°F | 0" | -- |
| 1991 | 101°F | 63°F | 0" | -- |
| 1990 | 94°F | 64°F | 0" | -- |
| 1989 | 77°F | 60°F | 0" | -- |
| 1988 | 92°F | 60°F | 0" | -- |
| 1987 | 78°F | 60°F | 0" | -- |
| 1986 | 71°F | 61°F | 0.3" | -- |
| 1985 | 83°F | 55°F | 0" | -- |
| 1984 | 74°F | 61°F | 0" | -- |
| 1983 | 80°F | 57°F | 0" | -- |
| 1982 | 87°F | 68°F | 0" | -- |
| 1981 | 74°F | 62°F | 0" | -- |
| 1980 | 75°F | 62°F | 0" | -- |
| 1979 | 77°F | 58°F | 0" | -- |
| 1978 | 89°F | 60°F | 0" | -- |
| 1977 | 78°F | 63°F | 0" | -- |
| 1976 | 86°F | 56°F | 0" | -- |
| 1975 | 75°F | 57°F | 0" | -- |
| 1974 | 74°F | 53°F | 0" | -- |
| 1973 | 77°F | 50°F | 0" | -- |
| 1972 | 76°F | 57°F | 0" | -- |
| 1971 | 96°F | 58°F | 0" | -- |
Based on 55 years of data from NOAA station: SANTA ANA JOHN WAYNE AP
Monthly Climate Averages
Historical temperature and precipitation averages for Costa Mesa, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.