August weather forecast and climate
Onyx, CA

Weather in August

The last month of the summer, August, is another warm month in Onyx, California, with average temperature fluctuating between 84.7°F (29.3°C) and 57.6°F (14.2°C).

Temperature

In Onyx, the average high-temperature in August is almost the same as in July - a still warm 84.7°F (29.3°C). In August, in Onyx, the average low-temperature is 57.6°F (14.2°C).

Humidity

With an average relative humidity of 31%, August is the least humid month.

Rainfall

In Onyx, in August, during 1.9 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, in Onyx, there are 61 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Onyx.

Daylight

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

Sunshine

In August, 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 Onyx. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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 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 temperature in August in Onyx?

The average high-temperature, in August, in Onyx, is 84.7°F (29.3°C), while the average low-temperature is 57.6°F (14.2°C).

What is the least humid month in Onyx?

The least humid month is August, with an average relative humidity of 31%.

What is the average humidity in August in Onyx?

The average relative humidity in August in Onyx is 31%.

How much does it rain in Onyx in August?

In Onyx, in August, during 1.9 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

When it does not snow in Onyx?

May through October are months without snowfall.

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

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

How many hours of sunshine does Onyx have in August?

In August, the average sunshine in Onyx is 12h.

What are the months with the highest UV index in Onyx?

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

How high is the UV index in August in Onyx?

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

Average temperature in August
Onyx, CA

Average temperature in August - Onyx, CA
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48.7°F).

  • Average low temperature in August: 57.6°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is December (30.9°F).

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Average pressure in August
Onyx, CA

Average pressure in August - Onyx, CA
  • Average pressure in August: 29.88"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in August
Onyx, CA

Average wind speed in August - Onyx, CA
  • Average wind speed in August: 6mph

The windiest months (with the highest average wind speed) are May and June (7.3mph).
The calmest months (with the lowest average wind speed) are January and September (5.4mph).

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Average humidity in August
Onyx, CA

Average humidity in August - Onyx, CA
  • Average humidity in August: 31%

The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is August (31%).

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Average rainfall in August
Onyx, CA

Average rainfall in August - Onyx, CA
  • Average rainfall in August: 0.16"

The wettest month (with the highest rainfall) is January (2.48").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in August
Onyx, CA

Average rainfall days in August - Onyx, CA
  • Average rainfall days in August: 1.9 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in August
Onyx, CA

Average snowfall in August - Onyx, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.15").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Onyx, CA

Average snowfall days in August - Onyx, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Onyx, 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: 9.8h).

  • Average sunshine in August: 12h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.7).

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Average sunshine days in August
Onyx, CA

Average sunshine days in August - Onyx, CA
  • Average sunshine days in August: 27.4 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (19 days).

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Average UV index in August
Onyx, CA

Average UV index in August - Onyx, 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 2).

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Average cloud cover in August
Onyx, CA

Average cloud cover in August - Onyx, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 26).
Months with the least cloud cover are August and September (Cloud cover 5).

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Average visibility in August
Onyx, CA

Average visibility in August - Onyx, 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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