Fresno, CA weather in August
Expect hot, dry weather in Fresno in August, with highs near 97°F and lows near 68°F. Rain is rare. It is one of the warmest months in Fresno. Plan outdoor time for mornings and evenings.
- Normal high
- 97°F
- Normal low
- 68°F
- Wet days
- 0
- 0.0 in total
- Muggy days
- 0
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 98°F | 95°F |
| Normal low | 69°F | 66°F |
| Chance of a wet day | 0% | 1% |
| Sunrise / sunset | 6:04 am / 8:05 pm | 6:29 am / 7:29 pm |
| Daylight | 14.0 h | 13.0 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
- 6 am68°Fdew point 54°F
- 9 am80°Fdew point 55°F
- Noon91°Fdew point 52°F
- 3 pm97°Fdew point 49°F
- 6 pm94°Fdew point 49°F
- 9 pm83°Fdew point 54°F
NOAA hourly normals (local standard time) from Fresno Yosemite Intl Airport (4 mi away); average wind 7 mph; clear or few clouds in 79% of daytime hours, mostly cloudy or overcast in 8%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more29 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 0.0 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, 1991-20202012: average high 102°F
- Coolest August1999: average high 93°F
- Wettest August2003: 0.04 in
- Driest August1991: no measurable precipitation
- Highest reading112°F (August 16, 2020)
- Lowest reading56°F (August 31, 1999)
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
| July | August | September | |
|---|---|---|---|
| Normal high | 98°F | 97°F | 91°F |
| Normal low | 69°F | 68°F | 63°F |
| Wet days | 0 | 0 | 1 |
| Comfortable days | 0 | 0 | 3 |
| Daylight | 14.4 h | 13.5 h | 12.4 h |
Highs change by -1°F from July and -6°F into September.
Nearby alternatives in August
- Warmer: Furnace Creek, CA162 mi · high 116°F · 1 wet day
- Cooler: Yosemite Valley, CA70 mi · high 89°F · 1 wet day
How Fresno ranks in August
- Normal high35th warmest of 378 cities; 9th of 60 in California
- Wet days6th driest of 378
- Comfortable days243rd most of 341
What to pack for Fresno in August
- Light, breathable clothing – highs near 97°F
- Layers – afternoons near 97°F but nights near 68°F
Heating and cooling
August has 0 heating degree days and 533 cooling degree days (base 65°F), 12% of the year's total heating and cooling demand.
Questions
How hot is Fresno in August?
The normal high is 97°F and the normal low is 68°F. From 1991 to 2020 the hottest August reading was 112°F (most recently on August 16, 2020).
Does it rain a lot in Fresno in August?
About 0 days in August have at least 0.01 in of precipitation, and the normal total is 0.00 in. The wettest August in 1991-2020 was in 2003 (0.04 in); the driest was in 1991, with no measurable precipitation.
Is August a good time to visit Fresno?
August ranks 12th of 12 months on our comfort score for Fresno (38 out of 100). It has almost no comfortable days and about 29 days at 90°F or hotter. The best months are March and April.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Fresno Yosemite Intl Airport (USW00093193), 3.7 mi NE of the city center, 333 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Fresno Yosemite International Airport (723890-93193), 3.7 mi NE of the city center, 334 ft . Hourly observations, 1991-2020.