September weather forecastCox, CA
September
Weather in September
The first month of the autumn, September, is also a fiery hot month in Cox, California, with an average temperature fluctuating between 79.9°F (26.6°C) and 97.7°F (36.5°C).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a scorching 104.2°F (40.1°C) in August to a sweltering 97.7°F (36.5°C). Cox's average low-temperature in September is measured at a warm 79.9°F (26.6°C).Humidity
In September, the average relative humidity in Cox is 25%.Rainfall
In Cox, California, in September, it is raining for 4.1 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, in Cox, there are 34.2 rainfall days, and 2.99" (76mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:04 pm. On the last day of September, in Cox, sunrise is at 6:33 am and sunset at 6:24 pm PDT.
Sunshine
The average sunshine in September in Cox is 10.1h.UV index
The average daily maximum UV index in September is 8. A UV Index of 8 to 10 symbolizes a very high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 8 during September, leads to the following recommendations:
Always be cautious. Skin and eyes can be affected swiftly without protection. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cox, CA
- Average high temperature in September: 97.7°F
The warmest month (with the highest average high temperature) is July (105.1°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in September: 79.9°F
The month with the highest average low temperature is August (86.2°F).
The coldest month (with the lowest average low temperature) is December (48.2°F).
Average pressure in September
Cox, CA
- Average pressure in September: 29.79"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed in September
Cox, CA
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is November (6.4mph).
Average humidity in September
Cox, CA
- Average humidity in September: 25%
The months with the highest relative humidity are January and December (38%).
The month with the lowest relative humidity is June (18%).
Average rainfall in September
Cox, CA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is July (0.55").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days in September
Cox, CA
- Average rainfall days in September: 4.1 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is May (1.2 days).
Average daylight in September /
Average sunshine in September
Cox, CA
- Average daylight in September: 12h 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 September: 10h and 6min
The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).
Average sunshine days in September
Cox, CA
- Average sunshine days in September: 22.5 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (19.1 days).
Average UV index in September
Cox, CA
- Average UV index in September: 8
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Cox, CA
- Average cloud cover in September: 8
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Cox, 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).





