August weather forecastYucaipa, CA
August
Weather in August
August, the last month of the summer in Yucaipa, is also a hot month, with an average temperature fluctuating between 89.2°F (31.8°C) and 64.2°F (17.9°C).Temperature
Yucaipa reaches its highest average temperatures in August, measuring 89.2°F (31.8°C) at the peak and 64.2°F (17.9°C) at the lowest.Humidity
With an average relative humidity of 36%, August is the least humid month in Yucaipa, California.Rainfall
In Yucaipa, during August, the rain falls for 2.6 days and regularly aggregates up to 0.16" (4mm) of precipitation. In Yucaipa, during the entire year, the rain falls for 49.3 days and collects up to 6.69" (170mm) of precipitation.Snowfall
January, May through October are months without snowfall in Yucaipa.Daylight
The average length of the day in August in Yucaipa is 13h and 23min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:48 pm. On the last day of August, in Yucaipa, California, sunrise is at 6:21 am and sunset at 7:14 pm PDT.
Sunshine
In Yucaipa, the average sunshine in August is 12h.UV index
The average daily maximum UV index in August in Yucaipa is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during August leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Yucaipa, CA
- Average high temperature in August: 89.2°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in August
Yucaipa, CA
- Average pressure in August: 29.86"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in August
Yucaipa, CA
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is September (5.2mph).
Average humidity in August
Yucaipa, CA
- Average humidity in August: 36%
The month with the highest relative humidity is February (54%).
The month with the lowest relative humidity is August (36%).
Average rainfall in August
Yucaipa, CA
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in August
Yucaipa, CA
- Average rainfall days in August: 2.6 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.4 days).
Average snowfall in August
Yucaipa, CA
- Average snowfall in August: 0"
The month with the highest snowfall is November (0.87").
The months with the least snowfall are January, May, June, July, August, September and October (0").
Average snowfall days in August
Yucaipa, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are January, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Yucaipa, 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 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in August
Yucaipa, CA
- Average sunshine days in August: 26.4 days
The month with the most sunshine days is June (27.6 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in August
Yucaipa, CA
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Yucaipa, CA
- Average cloud cover in August: 6
The months with the most cloud cover are February, March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in August
Yucaipa, 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).





