August weather forecastJoshua Tree, CA
August
Weather in August
The last month of the summer, August, is another hot month in Joshua Tree, California, with an average temperature varying between 75.7°F (24.3°C) and 94.3°F (34.6°C).Temperature
At the onset of August, Joshua Tree records an average high-temperature of a tropical 94.3°F (34.6°C), showing little deviation from the preceding month. Joshua Tree throughout August, experiences an average nighttime temperature of 75.7°F (24.3°C).Humidity
In Joshua Tree, California, the average relative humidity in August is 24%.Rainfall
In Joshua Tree, in August, during 4.8 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 41.7 rainfall days, and 4.72" (120mm) of precipitation is accumulated.Snowfall
In Joshua Tree, California, snow does not fall in March through November.Daylight
The average length of the day in August is 13h and 23min.On the first day of August, sunrise is at 5:57 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:11 pm PDT.
Sunshine
In August, the average sunshine in Joshua Tree is 12.1h.UV index
In Joshua Tree, the average daily maximum UV index in August is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 7 during August morphs into the following directions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Joshua Tree, CA
- Average high temperature in August: 94.3°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in August: 75.7°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in August
Joshua Tree, CA
- Average pressure in August: 29.82"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).
Average wind speed in August
Joshua Tree, CA
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is November (6.4mph).
Average humidity in August
Joshua Tree, CA
- Average humidity in August: 24%
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (23%).
Average rainfall in August
Joshua Tree, CA
- Average rainfall in August: 0.67"
The wettest month (with the highest rainfall) is July (0.91").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Joshua Tree, CA
- Average rainfall days in August: 4.8 days
The month with the highest number of rainy days is July (7.2 days).
The month with the least rainy days is June (1.4 days).
Average snowfall in August
Joshua Tree, CA
- Average snowfall in August: 0"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Joshua Tree, CA
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are February and December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Joshua Tree, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in August: 12h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in August
Joshua Tree, CA
- Average sunshine days in August: 22.6 days
The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (19.6 days).
Average UV index in August
Joshua Tree, CA
- Average UV index in August: 7
The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in August
Joshua Tree, CA
- Average cloud cover in August: 6
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in August
Joshua Tree, 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).





