August weather forecastSierraville, CA
August
Weather in August
August, the last month of the summer in Sierraville, is another warm month, with an average temperature varying between 46°F (7.8°C) and 81.1°F (27.3°C).Temperature
August observes an average high-temperature of a still warm 81.1°F (27.3°C), marking an insignificant difference from July's 82.9°F (28.3°C). The nighttime average for Sierraville in August plummets considerably from its daytime counterpart, resting at a chilly 46°F (7.8°C).Heat index
The heat index for August is computed to be 80.6°F (27°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
July and August, with an average relative humidity of 40%, are the least humid months.Rainfall
The month with the least rainfall is August, when the rain falls for 3.4 days and typically collects 0.2" (5mm) of precipitation.Snowfall
In Sierraville, snow does not fall in July and August.Daylight
The average length of the day in August is 13h and 40min.On the first day of August, sunrise is at 6:01 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:33 pm PDT.
Sunshine
In Sierraville, California, the average sunshine in August is 11.8h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index in Sierraville. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in August transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sierraville, CA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).
- Average low temperature in August: 46°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in August
Sierraville, CA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Sierraville, CA
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in August
Sierraville, CA
- Average humidity in August: 40%
The months with the highest relative humidity are January and March (81%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in August
Sierraville, CA
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in August
Sierraville, CA
- Average rainfall days in August: 3.4 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in August
Sierraville, CA
- Average snowfall in August: 0"
The month with the highest snowfall is December (22.52").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Sierraville, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is March (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Sierraville, CA
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 11h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in August
Sierraville, CA
- Average sunshine days in August: 26 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in August
Sierraville, CA
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in August
Sierraville, CA
- Average cloud cover in August: 8
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in August
Sierraville, CA
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).





