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Antioch, CA weather and climate

Contra Costa County, CA · population 115,759 · about 230 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Antioch's own coordinates.

The year at a glance

Sunny days
263
clear or partly cloudy, per year
Precipitation
13 in
per year
Wet days
52
rain or snow per year
Snowfall
0 in
per year
Hot days
63
above 90 °F
Freezing nights
6
at or below 32 °F
Humidity
68%
average relative
Average temperature
63 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
406080JanMarMayJulSepNovDaily high, Jan: 56 °FDaily high, Feb: 61 °FDaily high, Mar: 67 °FDaily high, Apr: 72 °FDaily high, May: 79 °FDaily high, Jun: 86 °FDaily high, Jul: 91 °FDaily high, Aug: 90 °FDaily high, Sep: 87 °FDaily high, Oct: 78 °FDaily high, Nov: 65 °FDaily high, Dec: 56 °FDaily low, Jan: 40 °FDaily low, Feb: 44 °FDaily low, Mar: 47 °FDaily low, Apr: 49 °FDaily low, May: 54 °FDaily low, Jun: 59 °FDaily low, Jul: 60 °FDaily low, Aug: 60 °FDaily low, Sep: 59 °FDaily low, Oct: 54 °FDaily low, Nov: 46 °FDaily low, Dec: 40 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high566167727986919087786556
Daily low404447495459606059544640

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.01.02.0JanMarMayJulSepNovAntioch, Jan: 2.7 inAntioch, Feb: 2.6 inAntioch, Mar: 2.0 inAntioch, Apr: 0.9 inAntioch, May: 0.5 inAntioch, Jun: 0.1 inAntioch, Jul: 0.0 inAntioch, Aug: 0.0 inAntioch, Sep: 0.0 inAntioch, Oct: 0.6 inAntioch, Nov: 1.3 inAntioch, Dec: 2.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Antioch2.72.62.00.90.50.10.00.00.00.61.32.5

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovAntioch, Jan: 13 daysAntioch, Feb: 14 daysAntioch, Mar: 17 daysAntioch, Apr: 20 daysAntioch, May: 25 daysAntioch, Jun: 27 daysAntioch, Jul: 30 daysAntioch, Aug: 30 daysAntioch, Sep: 29 daysAntioch, Oct: 26 daysAntioch, Nov: 18 daysAntioch, Dec: 15 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Antioch131417202527303029261815

Compare Antioch with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered California city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).