September weather forecast
East Foothills, CA

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Weather in September

September, the first month of the autumn in East Foothills, is still a warm month, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 80.4°F (26.9°C).

Temperature

East Foothills's entry into September measures an average high-temperature of a still moderately hot 80.4°F (26.9°C), closely parallel to the preceding month. The month of September sees a significant daily temperature drop, recording an average low-temperature of 54.9°F (12.7°C) in East Foothills.

Humidity

In East Foothills, the average relative humidity in September is 59%.

Rainfall

In East Foothills, in September, during 2.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In East Foothills, during the entire year, the rain falls for 66 days and collects up to 6.46" (164mm) of precipitation.

Daylight

In East Foothills, the average length of the day in September is 12h and 25min.
On the first day of September in East Foothills, California, sunrise is at 6:38 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:51 pm PDT.

Sunshine

In September, the average sunshine in East Foothills is 11.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in East Foothills?

An average high-temperature, in September, in East Foothills, is 80.4°F (26.9°C) and the average low-temperature is 54.9°F (12.7°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 86°F (30°C).

What is the average humidity in September in East Foothills?

The average relative humidity in September in East Foothills is 59%.

How many days does it rain in September in East Foothills?

In East Foothills, in September, it is raining for 2.5 days, with typically 0.12" (3mm) of accumulated precipitation.

How many hours of daylight does East Foothills have in September?

In September, the average day length in East Foothills is 12h and 25min.

When are sunrise and sunset in September in East Foothills?

On the first day of September in East Foothills, sunrise is at 6:38 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:51 pm PDT.

How long on average sun shines in September in East Foothills?

The average sunshine duration in September in East Foothills is 11.2h.

What is the UV index intensity in September in East Foothills?

In East Foothills, California, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
East Foothills, CA

Average temperature in September - East Foothills, CA
  • Average high temperature in September: 80.4°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in September: 54.9°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

Average pressure in September
East Foothills, CA

Average pressure in September - East Foothills, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

Average wind speed in September
East Foothills, CA

Average wind speed in September - East Foothills, CA
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest months (with the lowest average wind speed) are September, October and November (4.3mph).

Average humidity in September
East Foothills, CA

Average humidity in September - East Foothills, CA
  • Average humidity in September: 59%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (58%).

Average rainfall in September
East Foothills, CA

Average rainfall in September - East Foothills, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is March (1.26").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in September
East Foothills, CA

Average rainfall days in September - East Foothills, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (11.8 days).
The month with the least rainy days is August (0.8 days).

Average daylight in September /
Average sunshine in September
East Foothills, CA

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 1min

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
East Foothills, CA

Average sunshine days in September - East Foothills, CA
  • Average sunshine days in September: 26 days

The month with the most sunshine days is August (29.1 days).
The month with the least sunshine days is March (17.6 days).

Average UV index in September
East Foothills, CA

Average UV index in September - East Foothills, CA
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
East Foothills, CA

Average cloud cover in September - East Foothills, CA
  • Average cloud cover in September: 9

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in September
East Foothills, CA

Average visibility in September - East Foothills, 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).

East Foothills, California, USA

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