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Antioch, CA Weather


Antioch, CA climate is warm during summer when temperatures tend to be in the 70's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is July with an average maximum temperature of 90.70 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 37.10 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 32 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.

The annual average precipitation at Antioch is 13.33 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is January with an average rainfall of 2.72 Inches.

Weather Data

Current Conditions

(Updated: 4:53 PM PST TUE NOV 24 2009)

Partly Cloudy Partly Cloudy, 60°F Humidity: 52% Dewpoint: 42°F
Wind Speed: N 4.6 MPH (4 KT) Heat Index: 60°F
Barometer: 30.14 in. Wind Chill: 60°F

Weather Forecast

(Generated: 4:00 PM PST TUE NOV 24 2009)
  Tonight: Clear. Lows in the 30s. Northeast winds around 5 mph.
Lo: 35°F
Hi: 66°F Wednesday: Sunny. Highs in the mid 60s to lower 70s. Northeast winds around 5 mph.
Lo: 41°F
Hi: 65°F Thanksgiving day: Sunny. Highs in the mid 60s. Light winds.
Lo: 45°F
Hi: 61°F Friday: Partly cloudy. Highs in the lower 60s.
Lo: 40°F
Hi: 61°F Saturday: Mostly clear. Lows around 40. Highs in the lower 60s.
Lo: 40°F
Hi: 61°F Sunday: Mostly clear. Lows around 40. Highs in the lower 60s.
Lo: 40°F
Hi: 61°F Monday: Mostly clear. Lows around 40. Highs in the lower 60s.
Lo: 40°F

Moon, Sunrise and Sunset

Waxing Gibbous Moon Moon Phase: Waxing Gibbous Moon Civil Twilight:
6:28 AM PST
Sunrise:
6:56 AM PST
Sunset:
4:50 PM PST
Civil Twilight:
5:18 PM PST

Normal Climate

Normal Temperatures

(ANTIOCH PUMP PLANT #3 Weather station, 3.44 miles from Antioch)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 53.5 59.9 64.6 71.1 78.5 85.6 90.7 89.8 85.9 77.5 63.9 54.3 72.9
Mean °F 45.7 50.6 54.5 59.2 65.2 71.1 74.4 73.7 71.0 64.3 53.8 45.7 60.8
Min °F 37.8 41.3 44.3 47.2 51.9 56.5 58.1 57.6 56.0 51.1 43.6 37.1 48.5

Normal Precipitation

(ANTIOCH PUMP PLANT #3 Weather station, 3.44 miles from Antioch)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 2.72 2.51 2.16 0.73 0.47 0.09 0.03 0.03 0.24 0.76 1.70 1.89 13.33