September weather forecast and climate
Coso, CA

Weather in September

September, the first month of the autumn, in Coso, is also a moderately hot month, with average temperature fluctuating between 84.4°F (29.1°C) and 64.4°F (18°C).

Temperature

In September, the average high-temperature marginally drops, from a hot 91°F (32.8°C) in August, to a moderately hot 84.4°F (29.1°C). In September, in Coso, the average low-temperature is 64.4°F (18°C).

Humidity

In Coso, the average relative humidity is 23%.

Rainfall

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

Snowfall

March through October and December are months without snowfall in Coso, California.

Daylight

In Coso, the average length of the day is 12.4h.

Sunshine

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

UV index

In Coso, California, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Coso?

In Coso, California, in September, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 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, in September, it is raining for 1.6 days, with typically 0.08" (2mm) of accumulated 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 length of the day in September in Coso is 12.4h.

How long on average sun shines in September in Coso?

In September, the average sunshine is 10.9h.

What is the UV index reading in September in Coso?

In September, the average daily maximum UV index in Coso, California, is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

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"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.82").

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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").
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).
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: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 10.9h

Months with the most sunshine are June and July (Average sunshine: 12.2h).
Months with the least sunshine are January and December (Average sunshine: 7.1).

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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

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

Months with the most cloud cover are January and March (Cloud cover 18).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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