Fairfield Weather in October
Average highs run from 69°F on October 1 to 52°F on October 31, and lows from 39°F to 32°F. Normal precipitation for the month is 1.53 in over about 8 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 61°F
- Average low
- 35°F
- Precipitation
- 1.53 in
- Snowfall
- 0.1 in
- Record high
- 86°FOct 1, 2008
- Record low
- 12°FOct 31, 2002
- Chance of a freeze
- 98%
- Daylight
- 11 h 40 min to 10 h 02 min
- Cloud cover
- 63%
- Humidity
- 69%
- Dew point
- 34°F
- Wind
- 5.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Oct 1 | 69°F | 39°F | 86°F 2008 | 30°F 2019 | 20% | 0% |
| Oct 2 | 69°F | 39°F | 82°F 2010 | 30°F 1999 | 20% | 0% |
| Oct 3 | 68°F | 39°F | 81°F 2003 | 29°F 1999 | 21% | 0% |
| Oct 4 | 67°F | 38°F | 82°F 2003 | 32°F 2000 | 21% | 0% |
| Oct 5 | 67°F | 38°F | 79°F 2022 | 28°F 2000 | 21% | 0% |
| Oct 6 | 66°F | 38°F | 82°F 2014 | 28°F 2000 | 22% | 0% |
| Oct 7 | 66°F | 38°F | 83°F 2014 | 30°F 2009 | 22% | 0% |
| Oct 8 | 65°F | 37°F | 83°F 2023 | 28°F 2009 | 23% | 0% |
| Oct 9 | 65°F | 37°F | 84°F 2025 | 28°F 2019 | 23% | 0% |
| Oct 10 | 64°F | 37°F | 77°F 2015 | 23°F 2009 | 24% | 0% |
| Oct 11 | 64°F | 36°F | 73°F 2012 | 20°F 2009 | 24% | 0% |
| Oct 12 | 63°F | 36°F | 76°F 2022 | 18°F 2009 | 25% | 0% |
| Oct 13 | 62°F | 36°F | 73°F 2014 | 28°F 2002 | 25% | 0% |
| Oct 14 | 62°F | 36°F | 74°F 2022 | 28°F 2002 | 26% | 0% |
| Oct 15 | 61°F | 35°F | 78°F 2022 | 28°F 2008 | 26% | 0% |
| Oct 16 | 61°F | 35°F | 77°F 2015 | 23°F 1999 | 27% | 1% |
| Oct 17 | 60°F | 35°F | 77°F 2015 | 29°F 2010 | 27% | 1% |
| Oct 18 | 59°F | 35°F | 76°F 2003 | 27°F 1999 | 28% | 1% |
| Oct 19 | 59°F | 34°F | 79°F 2023 | 28°F 1998 | 28% | 1% |
| Oct 20 | 58°F | 34°F | 76°F 2023 | 29°F 1998 | 29% | 1% |
| Oct 21 | 58°F | 34°F | 79°F 2003 | 30°F 1999 | 30% | 1% |
| Oct 22 | 57°F | 34°F | 76°F 2003 | 26°F 2000 | 30% | 1% |
| Oct 23 | 57°F | 33°F | 71°F 1999 | 25°F 2002 | 31% | 1% |
| Oct 24 | 56°F | 33°F | 71°F 2007 | 20°F 2020 | 31% | 1% |
| Oct 25 | 56°F | 33°F | 68°F 2014 | 15°F 2020 | 32% | 1% |
| Oct 26 | 55°F | 33°F | 67°F 2024 | 20°F 2020 | 33% | 1% |
| Oct 27 | 54°F | 33°F | 65°F 1998 | 23°F 2002 | 33% | 2% |
| Oct 28 | 54°F | 32°F | 68°F 2003 | 19°F 2023 | 34% | 2% |
| Oct 29 | 53°F | 32°F | 65°F 2012 | 17°F 2019 | 34% | 2% |
| Oct 30 | 53°F | 32°F | 66°F 1999 | 17°F 2019 | 35% | 2% |
| Oct 31 | 52°F | 32°F | 61°F 2012 | 12°F 2002 | 36% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 6:48 AM, sunset 6:28 PM
- October 31
- sunrise 7:31 AM, sunset 5:33 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00457180 (Rosalia), public domain. Records: NOAA GHCN-Daily, station USW00094176, 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.