Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from 93.4°F (34.1°C) in August to a still tropical 86.9°F (30.5°C). Throughout September, Yucca Valley experiences a low-temperature average of 68.9°F (20.5°C).Humidity
The average relative humidity in September is 27%.Rainfall
In September, the rain falls for 4 days. Throughout September, 0.28" (7mm) of precipitation is accumulated. In Yucca Valley, during the entire year, the rain falls for 43 days and collects up to 4.57" (116mm) of precipitation.Snowfall
March through October are months without snowfall in Yucca Valley.Daylight
In Yucca Valley, California, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:11 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:30 pm PDT.
Sunshine
In Yucca Valley, the average sunshine in September is 10.5h.UV index
In Yucca Valley, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Yucca Valley?
What is the average humidity in September in Yucca Valley?
How much does it rain in Yucca Valley in September?
When it does not snow in Yucca Valley?
What is the average length of the day in September in Yucca Valley?
What time are sunrise and sunset in September in Yucca Valley?
How long on average sun shines in September in Yucca Valley?
What is the UV index reading in September in Yucca Valley?
Average temperature in September
Yucca Valley, CA
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in September
Yucca Valley, CA
- Average pressure in September: 29.84"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Yucca Valley, CA
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are January and September (6.6mph).
Average humidity in September
Yucca Valley, CA
- Average humidity in September: 27%
The month with the highest relative humidity is December (46%).
The months with the lowest relative humidity are June and August (24%).
Average rainfall in September
Yucca Valley, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Yucca Valley, CA
- Average rainfall days in September: 4 days
The month with the highest number of rainy days is July (6 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in September
Yucca Valley, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.73").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Yucca Valley, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Yucca Valley, CA
- Average daylight in September: 12h and 2min
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 September: 10h and 3min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Yucca Valley, CA
- Average sunshine days in September: 23.4 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is July (21.1 days).
Average UV index in September
Yucca Valley, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in September
Yucca Valley, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Yucca Valley, CA
- Average visibility in September: 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).
Yucca Valley, California, USA
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