August weather forecastOnyx, CA
August
Weather in August
The last month of the summer, August, is another warm month in Onyx, California, with an average temperature ranging between max 84.7°F (29.3°C) and min 57.6°F (14.2°C).Temperature
Onyx's weather in August, with an average high-temperature of a still warm 84.7°F (29.3°C), subtly shifts from July's 85.8°F (29.9°C). A considerable shift from the daytime highs is observed in Onyx during August nights, with an average low of 57.6°F (14.2°C).Humidity
The least humid month in Onyx is August, with an average relative humidity of 31%.Rainfall
In Onyx, in August, during 1.9 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Onyx, during the entire year, the rain falls for 61 days and collects up to 11.81" (300mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in August is 13h and 28min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:56 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:21 pm PDT.
Sunshine
The average sunshine in August 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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In August, a daily UV index of 6 turns into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in August
Onyx, CA
- Average pressure in August: 29.88"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
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).
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%).
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").
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).
Average snowfall in August
Onyx, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
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).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Onyx, CA
- Average daylight in August: 13h and 30min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
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).
Average UV index in August
Onyx, CA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
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).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in August
Onyx, 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).
