September weather forecast
Valley Wells, CA

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Weather in September

The first month of the autumn, September, is still a hot month in Valley Wells, California, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 65.5°F (18.6°C).

Temperature

The commencement of September indicates a gentle shift in the average high-temperature, receding from August's 93.7°F (34.3°C) to a still tropical 86.5°F (30.3°C). Valley Wells anticipates an average minimum temperature of 65.5°F (18.6°C) in the month of September.

Humidity

In Valley Wells, the average relative humidity in September is 23%.

Rainfall

In Valley Wells, in September, during 2.1 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Valley Wells, during the entire year, the rain falls for 34.1 days and collects up to 2.64" (67mm) of precipitation.

Snowfall

February through October and December are months without snowfall in Valley Wells.

Daylight

In September, the average length of the day in Valley Wells is 12h and 23min.
On the first day of September in Valley Wells, sunrise is at 6:21 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:33 pm PDT.

Sunshine

The average sunshine in September is 10.8h.

UV index

The average daily maximum UV index in September in Valley Wells is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 in September translates into these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

How hot does it get in Valley Wells in September?

The high-temperature, in September, in Valley Wells, records 86.5°F (30.3°C), while the low-temperature is 65.5°F (18.6°C).

What is the average humidity in September in Valley Wells?

The average relative humidity in September in Valley Wells is 23%.

How many days does it rain in September in Valley Wells?

In September, in Valley Wells, California, the rain falls for 2.1 days. Throughout September, 0.16" (4mm) of precipitation is accumulated.

When it does not snow in Valley Wells?

February through October and December are months without snowfall.

What is the average length of the day in September in Valley Wells?

The average day length in September in Valley Wells is 12h and 23min.

When is the sunrise / sunset in September in Valley Wells?

In September, on the first day of the month, sunrise is at 6:21 am and sunset at 7:16 pm. On the last day of the month, in Valley Wells, California, sunrise is at 6:44 am and sunset at 6:33 pm PDT.

How many hours of sunshine does Valley Wells have in September?

The average sunshine duration in September in Valley Wells, California, is 10.8h.

What is the UV index reading in September in Valley Wells?

In Valley Wells, California, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Valley Wells, CA

Average temperature in September - Valley Wells, CA
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is December (52°F).

  • Average low temperature in September: 65.5°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is December (37°F).

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Average pressure in September
Valley Wells, CA

Average pressure in September - Valley Wells, CA
  • Average pressure in September: 29.87"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
Valley Wells, CA

Average wind speed in September - Valley Wells, CA
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is May (9.1mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

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Average humidity in September
Valley Wells, CA

Average humidity in September - Valley Wells, CA
  • Average humidity in September: 23%

The months with the highest relative humidity are January and December (47%).
The month with the lowest relative humidity is August (20%).

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Average rainfall in September
Valley Wells, CA

Average rainfall in September - Valley Wells, CA
  • Average rainfall in September: 0.16"

The wettest month (with the highest rainfall) is January (0.35").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Valley Wells, CA

Average rainfall days in September - Valley Wells, CA
  • Average rainfall days in September: 2.1 days

The month with the highest number of rainy days is March (4.3 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall in September
Valley Wells, CA

Average snowfall in September - Valley Wells, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is November (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0").

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Average snowfall days in September
Valley Wells, CA

Average snowfall days in September - Valley Wells, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 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
Valley Wells, CA

Average daylight in September / Average sunshine in September - Valley Wells, 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 month with the most sunshine is June (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
Valley Wells, CA

Average sunshine days in September - Valley Wells, CA
  • Average sunshine days in September: 26 days

The month with the most sunshine days is December (28.1 days).
The month with the least sunshine days is July (23.6 days).

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Average UV index in September
Valley Wells, CA

Average UV index in September - Valley Wells, CA
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Valley Wells, CA

Average cloud cover in September - Valley Wells, CA
  • Average cloud cover in September: 5

The months with the most cloud cover are January, March and December (Cloud cover 17).
The months with the least cloud cover are June, August and September (Cloud cover 5).

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Average visibility in September
Valley Wells, CA

Average visibility in September - Valley Wells, 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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Valley Wells, California, USA

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