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Weather in Fairfield, CA · National Weather Service + NOAA

It hardly ever freezes in Fairfield

Fairfield has mild winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 40°, and snow is almost unheard of. Normal November highs come to 66°, and lows to 44°.

Winter 59°/40°Spring 73°/48°Summer 89°/57°Fall 77°/50°
Right now
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Sunrise 9:35 am · sunset 8:07 pm

Getting the latest forecast from the National Weather Service…

What stands out about Fairfield’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
It hardly ever freezesOnly 88% of years see a night at 32° or below.Snow is rareNo measurable snow in a normal year.Plenty of 90° daysAbout 60 days a year reach 90°.
A normal year

Where today sits in Fairfield’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
59° / 40°
Snow is rare
Spring
73° / 48°
Frost is rare by spring
Summer
89° / 57°
60 days reach 90° in a normal year
Fall now
77° / 50°
Mild well into the fall
Best months to be outside
FebMarAprMayOctNov
Highs of 62–84° and lows of 40° or more
How much snow does Fairfield get?Almost none.When is it wettest?December, with 4.7 inches.Is it warmer than it used to be?+1.7° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Fairfield.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Fairfield itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Fairfield, CA (2 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.