September weather forecast
Valley Springs, CA

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Weather in September

September, the first month of the autumn in Valley Springs, is also a hot month, with an average temperature varying between 86.5°F (30.3°C) and 57.9°F (14.4°C).

Temperature

Entering September, the average high-temperature is recorded at a still hot 86.5°F (30.3°C), exhibiting a minimal shift from August's 91.9°F (33.3°C). Nightfall in September introduces a considerable dip in temperature, settling at an average of 57.9°F (14.4°C).

Heat index

The heat index in September is computed to be a tropical 86°F (30°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In Valley Springs, the average relative humidity in September is 41%.

Rainfall

In September, the rain falls for 2.5 days. Throughout September, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 72.9 rainfall days, and 18.66" (474mm) of precipitation is accumulated.

Snowfall

In Valley Springs, snow does not fall in January through November.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:47 pm PDT.

Sunshine

In September, the average sunshine is 11.4h.

UV index

In Valley Springs, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature during September is 86.5°F (30.3°C) and the low-temperature is 57.9°F (14.4°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 41%.

How many days does it rain in September?

In September, the rain falls for 2.5 days. Throughout September, 0.2" (5mm) of precipitation is accumulated.

When it does not snow in Valley Springs?

In Valley Springs, California, snow does not fall in January through November.

What is the average length of the day in September?

In September, the average day length in Valley Springs is 12h and 25min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:47 pm PDT.

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

The average sunshine duration in September is 11.4h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate 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
Valley Springs, CA

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

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (54°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is December (38.8°F).

Average pressure in September
Valley Springs, CA

Average pressure in September - Valley Springs, CA
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Valley Springs, CA

Average wind speed in September - Valley Springs, CA
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest month (with the lowest average wind speed) is September (4mph).

Average humidity in September
Valley Springs, CA

Average humidity in September - Valley Springs, CA
  • Average humidity in September: 41%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (40%).

Average rainfall in September
Valley Springs, CA

Average rainfall in September - Valley Springs, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is March (3.66").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in September
Valley Springs, CA

Average rainfall days in September - Valley Springs, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is August (1.2 days).

Average snowfall in September
Valley Springs, CA

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

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Valley Springs, CA

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

The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Valley Springs, CA

Average sunshine days in September - Valley Springs, CA
  • Average sunshine days in September: 27.2 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (16.9 days).

Average UV index in September
Valley Springs, CA

Average UV index in September - Valley Springs, CA
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Valley Springs, CA

Average cloud cover in September - Valley Springs, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in September
Valley Springs, CA

Average visibility in September - Valley 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).

Valley Springs, California, USA

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