Fresno
California, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Fresno, CA

The artificial Millerton Lake near Fresno in California, clear skies, and mountain ranges
The artificial Millerton Lake near Fresno in California, clear skies, and mountain ranges
Agosto, the last month of the summer, in Fresno, is another torrid month, with temperature in the range of an average low of 66.2°F (19°C) and an average high of 97.2°F (36.2°C).

Temperature

In Fresno, the average high-temperature in Agosto is essentially the same as in Julio - a still torrid 97.2°F (36.2°C). The average low-temperature, in Agosto, is 66.2°F (19°C).

Heat index

The average heat index in Agosto is estimated at an extremely hot 106.3°F (41.3°C). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, clothing, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Agosto, the average relative humidity is 44.7%.

Rainfall

Julio and Agosto are months with the least rain when the rain falls for 0.3 days and typically aggregates up to 0.01" (0.3mm) of rain.

Daylight

In Agosto, the average length of the day is 13.5h.

Sunshine

In Fresno, California, the average sunshine in Agosto is 12.9h.

UV index

In Agosto, the average daily maximum UV index in Fresno is 9. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.

What is the temperature in Agosto in Fresno?

The average high-temperature, in Agosto, in Fresno, California, is 97.2°F (36.2°C), while the average low-temperature is 66.2°F (19°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in Agosto is appraised at 106.3°F (41.3°C).

What is the average humidity in Agosto in Fresno?

The average relative humidity in Agosto is 44.7%.

How much does it rain in Fresno in Agosto?

In Fresno, California, in Agosto, during 0.3 rainfall days, 0.01" (0.3mm) of precipitation is typically accumulated.

What is the driest month in Fresno?

Julio and Agosto are months with the least rain in Fresno when the rain falls for 0.3 days and typically aggregates up to 0.01" (0.3mm) of rain.

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

The average length of the day in Agosto in Fresno, California, is 13.5h.

How long on average sun shines in Agosto in Fresno?

In Fresno, the average sunshine in Agosto is 12.9h.

What is the UV index intensity in Agosto in Fresno?

The average daily maximum UV index in Agosto is 9. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV rays.
Average temperature in August - Fresno, CA
  • Average high temperature in August: 97.1°F

The warmest month (with the highest average high temperature) is July (98.4°F).
The month with the lowest average high temperature is January (54.8°F).

  • Average low temperature in August: 66.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is December (38°F).

Average humidity in August - Fresno, CA
  • Average humidity in August: 44.7%

The month with the highest relative humidity is December (84.2%).
The month with the lowest relative humidity is July (39.2%).

Average rainfall in August - Fresno, CA
  • Average rainfall in August: 0"

The wettest month (with the highest rainfall) is January (2.2").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in August - Fresno, CA
  • Average rainfall days in August: 0.3 days

The month with the highest number of rainy days is February (8.6 days).
The month with the lowest number of rainy days is July (0.2 days).

Average daylight in August / Average sunshine in August - Fresno, CA
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in August: 12.9h

The month with most sunshine is July (Average sunshine: 13.8h).
The month with least sunshine is December (Average sunshine: 4.1h).

Average UV index in August - Fresno, CA
  • Average UV index in August: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).