Fairfield Weather in August
Average highs run from 89°F on August 1 to 89°F on August 31, and lows from 58°F to 58°F. Normal precipitation for the month is 0.03 in over about 0 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 89°F
- Average low
- 58°F
- Precipitation
- 0.03 in
- Record high
- 111°FAug 15, 2020
- Record low
- 48°FAug 23, 2002
- Chance of a freeze
- 0%
- Days of 90°F or more
- 14.5
- Daylight
- 14 h 07 min to 13 h 02 min
- Cloud cover
- 15%
- Humidity
- 61%
- Dew point
- 51°F
- Wind
- 10.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 89°F | 58°F | 109°F 2014 | 53°F 2020 | 0% |
| Aug 2 | 89°F | 58°F | 107°F 2017 | 53°F 2013 | 1% |
| Aug 3 | 89°F | 58°F | 108°F 2017 | 54°F 2018 | 1% |
| Aug 4 | 89°F | 58°F | 106°F 2007 | 55°F 2013 | 1% |
| Aug 5 | 89°F | 58°F | 105°F 2005 | 51°F 2016 | 1% |
| Aug 6 | 89°F | 58°F | 105°F 2005 | 49°F 2002 | 1% |
| Aug 7 | 89°F | 58°F | 105°F 2005 | 52°F 2016 | 1% |
| Aug 8 | 89°F | 58°F | 107°F 2001 | 53°F 2006 | 1% |
| Aug 9 | 89°F | 58°F | 104°F 2002 | 52°F 2013 | 1% |
| Aug 10 | 89°F | 58°F | 106°F 2018 | 55°F 2000 | 1% |
| Aug 11 | 89°F | 58°F | 106°F 2012 | 54°F 1999 | 1% |
| Aug 12 | 89°F | 58°F | 102°F 2002 | 54°F 2010 | 1% |
| Aug 13 | 89°F | 58°F | 106°F 2012 | 52°F 2003 | 1% |
| Aug 14 | 89°F | 58°F | 107°F 2008 | 52°F 2007 | 1% |
| Aug 15 | 89°F | 58°F | 111°F 2020 | 53°F 2003 | 1% |
| Aug 16 | 89°F | 58°F | 108°F 2022 | 55°F 2001 | 1% |
| Aug 17 | 89°F | 58°F | 106°F 2015 | 53°F 2006 | 1% |
| Aug 18 | 89°F | 58°F | 108°F 2020 | 51°F 2025 | 1% |
| Aug 19 | 89°F | 58°F | 104°F 2013 | 52°F 2025 | 1% |
| Aug 20 | 89°F | 58°F | 105°F 2022 | 51°F 2002 | 1% |
| Aug 21 | 89°F | 58°F | 104°F 2025 | 52°F 2001 | 1% |
| Aug 22 | 89°F | 58°F | 102°F 2022 | 53°F 2010 | 1% |
| Aug 23 | 89°F | 58°F | 102°F 2025 | 48°F 2002 | 1% |
| Aug 24 | 89°F | 58°F | 107°F 2010 | 48°F 2021 | 1% |
| Aug 25 | 89°F | 58°F | 109°F 2010 | 50°F 2002 | 1% |
| Aug 26 | 89°F | 58°F | 106°F 2017 | 52°F 2021 | 1% |
| Aug 27 | 89°F | 58°F | 108°F 2017 | 48°F 2012 | 1% |
| Aug 28 | 89°F | 58°F | 110°F 2017 | 49°F 2016 | 1% |
| Aug 29 | 89°F | 58°F | 107°F 2009 | 52°F 2003 | 1% |
| Aug 30 | 89°F | 58°F | 103°F 2007 | 53°F 2015 | 1% |
| Aug 31 | 89°F | 58°F | 103°F 2017 | 54°F 2002 | 1% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 6:11 AM, sunset 8:18 PM
- August 31
- sunrise 6:37 AM, sunset 7:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00042934 (Fairfield), public domain. Records: NOAA GHCN-Daily, station USW00093241, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.