Climateby Month

Chico, CA weather in August

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

Chico is hot and dry in August: highs average 93°F and nights drop to about 61°F. Rain is rare. This is the peak of the warm season in Chico. Midday heat is the main thing to plan around.

Normal high
93°F
Normal low
61°F
Wet days
0
0.08 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 high94°F92°F
Normal low63°F60°F
Chance of a wet day1%2%
Sunrise / sunset6:06 am / 8:20 pm6:34 am / 7:40 pm
Daylight14.2 h13.1 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 August day

  1. 6 am65°Fdew point 51°F
  2. 9 am79°Fdew point 50°F
  3. Noon90°Fdew point 48°F
  4. 3 pm95°Fdew point 46°F
  5. 6 pm92°Fdew point 49°F
  6. 9 pm79°Fdew point 54°F

NOAA hourly normals (local standard time) from Red Bluff Muni Airport (37 mi away); average wind 7 mph; clear or few clouds in 95% of daytime hours, mostly cloudy or overcast in 4%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
  • Hot dayshigh 90°F or more23 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 0.08 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, 1991-20201998: average high 97°F
  • Coolest August2010: average high 89°F
  • Wettest August2003: 1.0 in
  • Driest August1991: no measurable precipitation
  • Highest reading111°F (August 11, 1996)
  • Lowest reading46°F (August 5, 2002)

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 high94°F93°F90°F
Normal low63°F61°F58°F
Wet days001
Comfortable days014
Daylight14.7 h13.7 h12.4 h

Highs change by -1°F from July and -3°F into September.

Nearby alternatives in August

How Chico ranks in August

  • Normal high77th warmest of 378 cities; 23rd of 60 in California
  • Wet days37th driest of 378
  • Comfortable days208th most of 341

What to pack for Chico in August

  • Light, breathable clothing – highs near 93°F
  • Layers – afternoons near 93°F but nights near 61°F

Heating and cooling

August has 0 heating degree days and 374 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.

Questions

How hot is Chico in August?

The normal high is 93°F and the normal low is 61°F. From 1991 to 2020 the hottest August reading was 111°F (most recently on August 11, 1996).

Does it rain a lot in Chico in August?

About 0 days in August have at least 0.01 in of precipitation, and the normal total is 0.08 in. The wettest August in 1991-2020 was in 2003 (1.0 in); the driest was in 1991, with no measurable precipitation.

Is August a good time to visit Chico?

August ranks 12th of 12 months on our comfort score for Chico (42 out of 100). It has about 1 comfortable day and about 23 days at 90°F or hotter. The best month is April.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Orland (USC00046506), 19 mi W of the city center, 254 ft (56 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Chico Univ Farm (USC00041715), 2.7 mi SSE of the city center, 185 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Red Bluff Muni Airport (USW00024216), 37 mi NW of the city center, 353 ft (155 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Red Bluff Municipal Arpt (725910-24216), 37 mi NW of the city center, 355 ft (157 ft higher than the city). Hourly observations, 1991-2020.