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Fairfield, CA Weather on August 26

August 26th in Fairfield, CA typically brings warm summer weather, with average highs around 89°F and lows near 56°F — a 33°F daily swing. Over 55 years of records, the warmest August 26th was in 1999 (86°F average), while the coldest was 1991 (63°F) — a 23°F range across recorded history. This date has historically been dry, with little recorded precipitation. Temperatures on this date have remained relatively stable over the past several decades.

By Weather On This Day|
Avg High
89°F
Avg Low
56°F
Record High
105°F
2010
Record Low
47°F
1985
Fairfield, CA on August 26 — Temperature History40°F60°F80°F100°F120°F19801990200020102020HighLow

What to Expect on August 26

Planning for August 26th in Fairfield, CA? Stay hydrated and seek shade during peak afternoon hours.

August 26 Weather Records for Fairfield

  • The all-time record high for August 26th in Fairfield, CA is 105°F, set in 2010.
  • The coldest August 26th on record dropped to 47°F in 1985.
  • Temperatures have reached 90°F or higher on August 26th in 22 of the last 55 years.
  • Last year (1971), August 26th was 7°F cooler than the long-term average.

Frequently Asked Questions

What was the warmest August 26 ever in Fairfield?

The warmest August 26 in Fairfield, CA reached 105°F in 2010. That is 16°F above the long-term average high of 89°F.

What was the coldest August 26 ever in Fairfield?

The coldest August 26 in Fairfield, CA dropped to 47°F in 1985. That is 9°F below the long-term average low of 56°F.

What is the average temperature on August 26 in Fairfield?

On August 26, Fairfield averages a high of 89°F and a low of 56°F based on 55 years of NOAA weather observations from FAIRFIELD.

How many years of weather data are available for August 26 in Fairfield?

We have 55 years of weather records for August 26 in Fairfield, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.

August 26 Weather History in Fairfield

YearHighLowPrecipSnow
202591°F63°F0"--
202494°F60°F0"--
202389°F56°F0"--
202291°F57°F0"--
202194°F54°F0"--
202088°F62°F0"--
201998°F62°F0"--
201880°F54°F0"--
2017104°F58°F0"--
201678°F55°F0"--
201596°F56°F0"--
201487°F56°F0"--
201385°F60°F0"--
201276°F54°F0"--
201193°F57°F0"--
2010105°F59°F0"--
200989°F51°F0"--
200895°F56°F0"--
200785°F56°F0"--
200688°F54°F0"--
200589°F53°F0"--
200484°F56°F0"--
200397°F65°F0"--
200294°F55°F0"--
200198°F57°F0"--
200096°F57°F0"--
1999105°F66°F0"--
199877°F53°F0"--
199786°F59°F0"--
199688°F56°F0"--
199586°F54°F0"--
199487°F56°F0"--
199398°F59°F0"--
199297°F56°F0"--
199172°F55°F0"--
199076°F56°F0"--
198982°F54°F0"--
1988101°F67°F0"--
198783°F56°F0"--
198695°F49°F0"--
198590°F47°F0"--
198484°F52°F0"--
198381°F54°F0"--
198280°F54°F0"--
198194°F55°F0"--
198082°F49°F0"--
197987°F58°F0"--
197882°F56°F0"--
197780°F52°F0"--
197685°F52°F0"--
197587°F53°F0"--
197486°F56°F0"--
197379°F53°F0"--
197295°F57°F0"--
197182°F55°F0"--

Based on 55 years of data from NOAA station: FAIRFIELD

Monthly Climate Averages

Historical temperature and precipitation averages for Fairfield, CA, based on 55+ years of weather data.

Warmest MonthAugustAvg High: 91°F / Low: 58°F
Coldest MonthDecemberAvg High: 56°F / Low: 39°F
Jan
57°/ 39°
💧 0.4"
Feb
62°/ 41°
💧 0.5"
Mar
67°/ 44°
💧 0.3"
Apr
72°/ 47°
💧 0.3"
May
79°/ 51°
💧 0.2"
Jun
87°/ 56°
💧 0.2"
Jul
91°/ 58°
💧 0.1"
Aug
91°/ 58°
💧 0.1"
Sep
88°/ 56°
💧 0.1"
Oct
78°/ 51°
💧 0.3"
Nov
65°/ 43°
💧 0.4"
Dec
56°/ 39°
💧 0.5"
❄️ 1.5"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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