Climateby Month

Stockton, CA weather in August

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

Expect hot, dry weather in Stockton in August, with highs near 94°F and lows near 60°F. Rain is rare. It is one of the warmest months in Stockton. Plan outdoor time for mornings and evenings.

Normal high
94°F
Normal low
60°F
Wet days
0
0.01 in total
Muggy days
0
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high95°F93°F
Normal low61°F59°F
Chance of a wet day1%1%
Sunrise / sunset6:08 am / 8:14 pm6:34 am / 7:36 pm
Daylight14.1 h13.0 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 August day

  1. 6 am62°Fdew point 53°F
  2. 9 am75°Fdew point 54°F
  3. Noon86°Fdew point 54°F
  4. 3 pm92°Fdew point 52°F
  5. 6 pm87°Fdew point 52°F
  6. 9 pm74°Fdew point 53°F

NOAA hourly normals (local standard time) from Stockton Metro Airport (6 mi away); average wind 8 mph; clear or few clouds in 97% of daytime hours, mostly cloudy or overcast in 2%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
  • Hot dayshigh 90°F or more22 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 August, counted from daily records for each year 1991-2020.

Rain in August

Normal precipitation is 0.01 in; a dry August 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 August varies from year to year

  • Warmest August, 1991-20202020: average high 98°F
  • Coolest August1991: average high 88°F
  • Wettest August1991: 0.07 in
  • Driest August1992: no measurable precipitation
  • Highest reading113°F (August 16, 2020)
  • Lowest reading50°F (August 29, 2010)

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

August compared with July and September

JulyAugustSeptember
Normal high95°F94°F90°F
Normal low61°F60°F58°F
Wet days001
Comfortable days113
Daylight14.5 h13.6 h12.4 h

Highs change by -1°F from July and -4°F into September.

Nearby alternatives in August

How Stockton ranks in August

  • Normal high59th warmest of 378 cities; 17th of 60 in California
  • Wet days26th driest of 378
  • Comfortable days205th most of 341

What to pack for Stockton in August

  • Light, breathable clothing – highs near 94°F
  • Layers – afternoons near 94°F but nights near 60°F

Heating and cooling

August has 0 heating degree days and 383 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.

Questions

How hot is Stockton in August?

The normal high is 94°F and the normal low is 60°F. From 1991 to 2020 the hottest August reading was 113°F (August 16, 2020).

Does it rain a lot in Stockton in August?

About 0 days in August have at least 0.01 in of precipitation, and the normal total is 0.01 in. The wettest August in 1991-2020 was in 1991 (0.07 in); the driest was in 1992, with no measurable precipitation.

Is August a good time to visit Stockton?

August ranks 12th of 12 months on our comfort score for Stockton (43 out of 100). It has about 1 comfortable day and about 22 days at 90°F or hotter. The best month is April.

Where the numbers come from

  • Temperature, rain, frost dates, humidity and wind by hour and cloud cover: Stockton Metro Airport (USW00023237), 5.9 mi SE of the city center, 26 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Stockton Fire Stn 4 (USC00048560), 3.2 mi NNW of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Stockton Metropolitan Airport (724920-23237), 5.9 mi SE of the city center, 27 ft . Hourly observations, 1991-2020.