September weather forecastCoso Junction, CA
September
Weather in September
The first month of the autumn, September, is still a warm month in Coso Junction, California, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 84.4°F (29.1°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a hot 91°F (32.8°C) in August to a warm 84.4°F (29.1°C). Coso Junction witnesses a consistent average low-temperature of 64.4°F (18°C) throughout September.Humidity
In Coso Junction, the average relative humidity in September is 23%.Rainfall
In Coso Junction, in September, during 1.6 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. In Coso Junction, during the entire year, the rain falls for 41.5 days and collects up to 4.69" (119mm) of precipitation.Snowfall
In Coso Junction, snow does not fall in March through October and December.Daylight
In Coso Junction, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:24 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:36 pm PDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
In Coso Junction, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coso Junction, CA
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (51.1°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is December (35.6°F).
Average pressure in September
Coso Junction, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in September
Coso Junction, CA
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are May and June (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).
Average humidity in September
Coso Junction, CA
- Average humidity in September: 23%
The month with the highest relative humidity is January (48%).
The month with the lowest relative humidity is August (20%).
Average rainfall in September
Coso Junction, CA
- Average rainfall in September: 0.08"
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
Coso Junction, CA
- Average rainfall days in September: 1.6 days
The month with the highest number of rainy days is March (6 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in September
Coso Junction, CA
- Average snowfall in September: 0"
The month with the highest snowfall is November (0.87").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Coso Junction, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 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
Coso Junction, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 10h and 54min
The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in September
Coso Junction, CA
- Average sunshine days in September: 27.3 days
The month with the most sunshine days is June (28.4 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in September
Coso Junction, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Coso Junction, CA
- Average cloud cover in September: 4
The months with the most cloud cover are January and March (Cloud cover 18).
The months with the least cloud cover are August and September (Cloud cover 4).
Average visibility in September
Coso Junction, 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).
