Climateby Month

Antioch, CA weather in July

NOAA 1991-2020 normals and daily records · Antioch all year

In July, Antioch sees highs around 91°F and lows around 61°F: hot and dry. Rain is rare. It is one of the warmest months in Antioch.

Normal high
91°F
Normal low
61°F
Wet days
0
0.0 in total
Muggy days
0
dew point 65°F+

How July changes from start to finish

Normal values at the start and end of July
July 1July 31
Normal high90°F91°F
Normal low61°F61°F
Chance of a wet day1%0%
Sunrise / sunset5:48 am / 8:33 pm6:09 am / 8:17 pm
Daylight14.8 h14.1 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).

A typical July day

  1. 6 am60°Fdew point 53°F
  2. 9 am71°Fdew point 54°F
  3. Noon83°Fdew point 54°F
  4. 3 pm88°Fdew point 53°F
  5. 6 pm79°Fdew point 54°F
  6. 9 pm66°Fdew point 53°F

NOAA hourly normals (local standard time) from Travis AFB (19 mi away); average wind 18 mph; clear or few clouds in 90% of daytime hours, mostly cloudy or overcast in 5%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
  • Hot dayshigh 90°F or more20 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow0 of 31
  • Notable rainat least 0.10 in0 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per July, counted from daily records for each year 1991-2020.

Rain in July

Normal precipitation is 0.0 in; a dry July brings about 0.0 in and a wet one about 0.0 in (25th and 75th percentiles). Days with half an inch or more are rare.

How July varies from year to year

  • Warmest July, 1991-20202006: average high 96°F
  • Coolest July1999: average high 88°F
  • Wettest July2014: 0.03 in
  • Driest July1992: no measurable precipitation
  • Highest reading110°F (July 24, 2006)
  • Lowest reading50°F (July 12, 2011)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

July compared with June and August

JuneJulyAugust
Normal high86°F91°F90°F
Normal low59°F61°F60°F
Wet days100
Comfortable days712
Daylight14.8 h14.5 h13.6 h

Highs change by +5°F from June and -1°F into August.

Nearby alternatives in July

How Antioch ranks in July

  • Normal high115th warmest of 378 cities; 25th of 60 in California
  • Wet days1st driest of 378
  • Comfortable days176th most of 340

What to pack for Antioch in July

  • Light, breathable clothing – highs near 91°F
  • Layers – afternoons near 91°F but nights near 61°F
  • Sunglasses and sunscreen – about 14.5 hours of daylight and highs near 91°F

Heating and cooling

July has 0 heating degree days and 341 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.

Questions

How hot is Antioch in July?

The normal high is 91°F and the normal low is 61°F. From 1991 to 2020 the hottest July reading was 110°F (most recently on July 24, 2006).

Does it rain a lot in Antioch in July?

About 0 days in July have at least 0.01 in of precipitation, and the normal total is 0.00 in. The wettest July in 1991-2020 was in 2014 (0.03 in); the driest was in 1992, with no measurable precipitation.

Is July a good time to visit Antioch?

July ranks 10th of 12 months on our comfort score for Antioch (48 out of 100). It has about 1 comfortable day and about 20 days at 90°F or hotter. The best months are April and May.

Where the numbers come from

  • Temperature and frost dates: Antioch Pumping Plt #3 (USC00040232), 3.3 mi ESE of the city center, 60 ft . NOAA normals and daily records, 1991-2020.
  • Rain: Concord Wwtp (USC00041967), 14 mi W of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Fairfield (USC00042934), 23 mi NW of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Travis AFB (USW00023202), 19 mi NNW of the city center, 59 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Travis Air Force Base (745160-23202), 19 mi NNW of the city center, 62 ft . Hourly observations, 1991-2020.