September weather forecast
Running Springs, CA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Running Springs, California, with an average temperature varying between 61.9°F (16.6°C) and 84°F (28.9°C).

Temperature

With the advent of September, Running Springs's high-temperatures adjust to a warm 84°F (28.9°C), closely aligning with the preceding month. Running Springs marks a considerable descent from the daytime apex, as the average temperature dips to a comfortable 61.9°F (16.6°C) at night throughout September.

Humidity

In Running Springs, the average relative humidity in September is 37%.

Rainfall

In Running Springs, California, in September, it is raining for 2.3 days, with typically 0.12" (3mm) of accumulated precipitation. In Running Springs, during the entire year, the rain falls for 42.2 days and collects up to 5.55" (141mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:33 pm PDT.

Sunshine

In September, the average sunshine in Running Springs is 10.6h.

UV index

In Running Springs, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during September translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

Is it hot in Running Springs during September?

The average high-temperature and low-temperature during September are 84°F (28.9°C) and 61.9°F (16.6°C) respectively.

What is the average humidity in September in Running Springs?

In September, the average relative humidity in Running Springs is 37%.

How much does it rain in Running Springs in September?

In Running Springs, California, during September, the rain falls for 2.3 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Running Springs?

June through October are months without snowfall in Running Springs, California.

How many hours of daylight does Running Springs have in September?

The average day length in September in Running Springs is 12h and 22min.

When is the sunrise / sunset in September in Running Springs?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of the month, in Running Springs, sunrise is at 6:42 am and sunset at 6:33 pm PDT.

How long on average sun shines in September in Running Springs?

The average sunshine duration in September in Running Springs, California, is 10.6h.

How high is the UV index in September in Running Springs?

In September, the average daily maximum UV index in Running Springs is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
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
Running Springs, CA

Average temperature in September - Running Springs, CA
  • Average high temperature in September: 84°F

The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

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Average pressure in September
Running Springs, CA

Average pressure in September - Running Springs, CA
  • Average pressure in September: 29.86"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in September
Running Springs, CA

Average wind speed in September - Running Springs, CA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

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Average humidity in September
Running Springs, CA

Average humidity in September - Running Springs, CA
  • Average humidity in September: 37%

The months with the highest relative humidity are February and December (52%).
The month with the lowest relative humidity is August (32%).

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Average rainfall in September
Running Springs, CA

Average rainfall in September - Running Springs, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (1.1").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Running Springs, CA

Average rainfall days in September - Running Springs, CA
  • Average rainfall days in September: 2.3 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is June (1.2 days).

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Average snowfall in September
Running Springs, CA

Average snowfall in September - Running Springs, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is April (4.09").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Running Springs, CA

Average snowfall days in September - Running Springs, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Running Springs, CA

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

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 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days in September
Running Springs, CA

Average sunshine days in September - Running Springs, CA
  • Average sunshine days in September: 26 days

The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (21.8 days).

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Average UV index in September
Running Springs, CA

Average UV index in September - Running Springs, CA
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 7).
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
Running Springs, CA

Average cloud cover in September - Running Springs, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in September
Running Springs, CA

Average visibility in September - Running Springs, 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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Running Springs, California, USA

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