August weather forecast
Fresno, CA

The artificial Millerton Lake near Fresno in California
The artificial Millerton Lake near Fresno in California

Weather in August

August, the last month of the summer in Fresno, is another torrid month, with an average temperature ranging between max 98.2°F (36.8°C) and min 66.6°F (19.2°C).

Temperature

In Fresno, California, the average high-temperature in August is practically the same as in July - a still sweltering 98.2°F (36.8°C). The average low-temperature, is 66.6°F (19.2°C).

Humidity

In August, the average relative humidity is 29%.

Rainfall

The months with the least rainfall are June and August Rain falls for 1.2 days and accumulates 0.08" (2mm) of rain.

Daylight

In Fresno, the average length of the day in August is 13h and 31min.
On the first day of August, sunrise is at 6:05 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:28 pm PDT.

Sunshine

June through August, with an average of 12.1h of sunshine, are months with the most sunshine in Fresno, California.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 7 in August interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in August in Fresno?

In August, the average relative humidity is 29%.

What is the driest month in Fresno?

The months with the least rainfall in Fresno, California, are June and August Rain falls for 1.2 days and accumulates 0.08" (2mm) of rain.

How much does it rain in Fresno in August?

In August, the rain falls for 1.2 days. Throughout August, 0.08" (2mm) of precipitation is accumulated.

What is the average length of the day in August in Fresno?

The average day length in August is 13h and 31min.

When are sunrise and sunset in August in Fresno?

On the first day of August in Fresno, California, sunrise is at 6:05 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:28 pm PDT.

What are the months with the most sunshine in Fresno?

June through August, with an average of 12.1h of sunshine, are months with the most sunshine in Fresno, California.

How long on average sun shines in August in Fresno?

In August, the average sunshine duration in Fresno, California, is 12.1h.

When is the highest UV index in Fresno?

The months with the highest UV index in Fresno are June through August, with an average maximum UV index of 7.

What is the UV index reading in August in Fresno?

In Fresno, California, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Fresno, CA

Average temperature in August - Fresno, CA
  • Average high temperature in August: 98.2°F

The warmest month (with the highest average high temperature) is July (99.7°F).
The month with the lowest average high temperature is December (56.1°F).

  • Average low temperature in August: 66.6°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in August
Fresno, CA

Average pressure in August - Fresno, CA
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Fresno, CA

Average wind speed in August - Fresno, CA
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest month (with the lowest average wind speed) is November (3.8mph).

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Average humidity in August
Fresno, CA

Average humidity in August - Fresno, CA
  • Average humidity in August: 29%

The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is July (28%).

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Average rainfall in August
Fresno, CA

Average rainfall in August - Fresno, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is March (2.01").
The driest months (with the least rainfall) are June and August (0.08").

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Average rainfall days in August
Fresno, CA

Average rainfall days in August - Fresno, CA
  • Average rainfall days in August: 1.2 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (1.2 days).

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Average daylight in August /
Average sunshine in August
Fresno, CA

Average daylight in August / Average sunshine in August - Fresno, CA
  • Average daylight in August: 13h and 31min

The month with the longest days is June (Average daylight: 14h and 38min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 12h and 6min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in August
Fresno, CA

Average sunshine days in August - Fresno, CA
  • Average sunshine days in August: 28.2 days

The month with the most sunshine days is August (28.2 days).
The month with the least sunshine days is March (19.5 days).

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Average UV index in August
Fresno, CA

Average UV index in August - Fresno, CA
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

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Average cloud cover in August
Fresno, CA

Average cloud cover in August - Fresno, CA
  • Average cloud cover in August: 4

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in August
Fresno, CA

Average visibility in August - Fresno, CA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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