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
September brings a slight decrease in the average high-temperature, shifting from a tropical 91.4°F (33°C) in August to a still hot 86°F (30°C). Despite drastic daytime highs, Leona Valley logs an average low-temperature reading of 61.3°F (16.3°C) throughout September.Humidity
In Leona Valley, the average relative humidity in September is 34%.Rainfall
In September, the rain falls for 2.6 days. Throughout September, 0.16" (4mm) of precipitation is accumulated. Throughout the year, in Leona Valley, there are 48.7 rainfall days, and 5.71" (145mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Leona Valley.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:18 pm. On the last day of September, in Leona Valley, California, sunrise is at 6:47 am and sunset at 6:38 pm PDT.
Sunshine
In Leona Valley, the average sunshine in September is 10.9h.UV index
The average daily maximum UV index in September in Leona Valley is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Leona Valley in September?
What is the average humidity in September in Leona Valley?
How many days does it rain in September in Leona Valley?
When it does not snow in Leona Valley?
How many hours of daylight does Leona Valley have in September?
What time are sunrise and sunset in September in Leona Valley?
How many hours of sunshine does Leona Valley have in September?
What is the UV index reading in September in Leona Valley?
Average temperature in September
Leona Valley, CA
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).
Average pressure in September
Leona Valley, CA
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Leona Valley, CA
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is May (9.3mph).
The calmest month (with the lowest average wind speed) is January (6.7mph).
Average humidity in September
Leona Valley, CA
- Average humidity in September: 34%
The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is August (31%).
Average rainfall in September
Leona Valley, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Leona Valley, CA
- Average rainfall days in September: 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 (1.1 days).
Average snowfall in September
Leona Valley, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Leona Valley, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Leona 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 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).
Average sunshine days in September
Leona Valley, CA
- Average sunshine days in September: 25.5 days
The month with the most sunshine days is June (28.1 days).
The month with the least sunshine days is February (20.8 days).
Average UV index in September
Leona Valley, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Leona Valley, CA
- Average cloud cover in September: 5
The months with the most cloud cover are March and December (Cloud cover 21).
The months with the least cloud cover are June, August and September (Cloud cover 5).
Average visibility in September
Leona 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).
Leona Valley, California, USA
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