August weather forecast and climate
Greenfield, CA

Weather in August

August, the last month of the summer, in Greenfield, is also a hot month, with average temperature fluctuating between 58.6°F (14.8°C) and 88.9°F (31.6°C).

Temperature

In Greenfield, the average high-temperature in August is almost the same as in July - a still hot 88.9°F (31.6°C). In August, the average low-temperature is 58.6°F (14.8°C).

Heat index

In August, the average heat index is estimated at a hot 91.8°F (33.2°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like wind, clothing, metabolic differences, and activity influence one's weather impression. 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 particularly important for children. 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.

Humidity

The average relative humidity in Greenfield is 48%.

Rainfall

August is the month with the least rainfall in Greenfield. Rain falls for 0.4 days and accumulates 0.04" (1mm) of precipitation.

Daylight

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

Sunshine

In Greenfield, California, the average sunshine is 12h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Greenfield. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. 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.
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FAQ

What is the temperature in August in Greenfield?

In Greenfield, in August, the average high-temperature is 88.9°F (31.6°C), and the average low-temperature is 58.6°F (14.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that combines relative humidity and air temperature, is calculated to 91.8°F (33.2°C).

What is the average humidity in August in Greenfield?

In August, the average relative humidity is 48%.

How many days does it rain in August in Greenfield?

In Greenfield, California, during August, the rain falls for 0.4 days and regularly aggregates up to 0.04" (1mm) of precipitation.

What is the driest month in Greenfield?

August is the month with the least rainfall in Greenfield, California. Rain falls for 0.4 days and accumulates 0.04" (1mm) of precipitation.

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

In Greenfield, the average length of the day in August is 13.5h.

How many hours of sunshine does Greenfield have in August?

The average sunshine in August in Greenfield, California, is 12h.

What is the month with the highest UV index in Greenfield?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in August in Greenfield?

In Greenfield, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

Average temperature in August
Greenfield, CA

Average temperature in August - Greenfield, CA
  • Average high temperature in August: 88.9°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (56.8°F).

  • Average low temperature in August: 58.6°F

The month with the highest average low temperature is August (58.6°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).

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Average pressure in August
Greenfield, CA

Average pressure in August - Greenfield, CA
  • Average pressure in August: 29.92"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in August
Greenfield, CA

Average wind speed in August - Greenfield, CA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity in August
Greenfield, CA

Average humidity in August - Greenfield, CA
  • Average humidity in August: 48%

The month with the highest relative humidity is February (70%).
The month with the lowest relative humidity is July (46%).

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Average rainfall in August
Greenfield, CA

Average rainfall in August - Greenfield, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is December (1.89").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in August
Greenfield, CA

Average rainfall days in August - Greenfield, CA
  • Average rainfall days in August: 0.4 days

The month with the highest number of rainy days is March (11.8 days).
The month with the least rainy days is August (0.4 days).

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

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

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in August: 12h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.1h).

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Average sunshine days in August
Greenfield, CA

Average sunshine days in August - Greenfield, CA
  • Average sunshine days in August: 30.1 days

The month with the most sunshine days is August (30.1 days).
The month with the least sunshine days is March (18.3 days).

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Average UV index in August
Greenfield, CA

Average UV index in August - Greenfield, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in August
Greenfield, CA

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

Months with the most cloud cover are March and December (Cloud cover 32).
Months with the least cloud cover are July and August (Cloud cover 4).

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Average visibility in August
Greenfield, CA

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

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

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