September weather forecast
Coso, CA

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Weather in September

September, the first month of the autumn in Coso, is still a warm month, with an average temperature ranging between min 64.4°F (18°C) and max 84.4°F (29.1°C).

Temperature

With the arrival of September, Coso notices a mild change in the average high-temperature, sliding from August's hot 91°F (32.8°C) to a moderately hot 84.4°F (29.1°C). Throughout the nights in September, Coso experiences an average low-temperature of 64.4°F (18°C).

Humidity

The average relative humidity in September is 23%.

Rainfall

In Coso, during September, the rain falls for 1.6 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, there are 41.5 rainfall days, and 4.69" (119mm) of precipitation is accumulated.

Snowfall

In Coso, snow does not fall in March through October and December.

Daylight

In Coso, 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

The average daily maximum UV index in September in Coso, California, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

Is it hot in Coso during September?

Coso in September has an average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 64.4°F (18°C).

What is the average humidity in September in Coso?

In September, the average relative humidity is 23%.

How many days does it rain in September in Coso?

In Coso, during September, the rain falls for 1.6 days and regularly aggregates up to 0.08" (2mm) of precipitation.

When it does not snow in Coso?

In Coso, California, snow does not fall in March through October and December.

What is the average length of the day in September in Coso?

The average day length in September in Coso, California, is 12h and 23min.

What time are sunrise and sunset in September in Coso?

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.

How many hours of sunshine does Coso have in September?

In Coso, the average sunshine duration in September is 10.9h.

How high is the UV index in September in Coso?

In Coso, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Coso, CA

Average temperature in September - Coso, 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).

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Average pressure in September
Coso, CA

Average pressure in September - Coso, 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).

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Average wind speed in September
Coso, CA

Average wind speed in September - Coso, 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).

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Average humidity in September
Coso, CA

Average humidity in September - Coso, 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%).

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Average rainfall in September
Coso, CA

Average rainfall in September - Coso, 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").

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Average rainfall days in September
Coso, CA

Average rainfall days in September - Coso, 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).

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Average snowfall in September
Coso, CA

Average snowfall in September - Coso, 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").

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Average snowfall days in September
Coso, CA

Average snowfall days in September - Coso, 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).

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Average daylight in September /
Average sunshine in September
Coso, CA

Average daylight in September / Average sunshine in September - Coso, CA
  • Average daylight in September: 12h and 2min

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 5min

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).

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Average sunshine days in September
Coso, CA

Average sunshine days in September - Coso, 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).

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Average UV index in September
Coso, CA

Average UV index in September - Coso, 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).

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Average cloud cover in September
Coso, CA

Average cloud cover in September - Coso, 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).

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Average visibility in September
Coso, CA

Average visibility in September - Coso, 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).

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Coso, California, USA

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