September weather forecast
Avocado Heights, CA

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Weather in September

The first month of the autumn, September, is still a hot month in Avocado Heights, California, with an average temperature varying between 64.4°F (18°C) and 86.2°F (30.1°C).

Temperature

Avocado Heights's weather in September indicates an average high-temperature of a still hot 86.2°F (30.1°C), nearly consistent with the 88.3°F (31.3°C) of August. Avocado Heights logs a substantial downturn to a refreshing 64.4°F (18°C) during September nights, a considerable shift from daytime highs.

Heat index

September's mean heat index is computed to be a hot 87.8°F (31°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
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. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in September in Avocado Heights is 50%.

Rainfall

In Avocado Heights, in September, it is raining for 2.2 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, there are 41.3 rainfall days, and 5.35" (136mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Avocado Heights is 12h and 22min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:37 pm PDT.

Sunshine

The average sunshine in September is 10.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

How hot is September in Avocado Heights?

In September, the average high-temperature and low-temperature in Avocado Heights are 86.2°F (30.1°C) and 64.4°F (18°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 87.8°F (31°C).

What is the average humidity in September in Avocado Heights?

The average relative humidity in September in Avocado Heights, California, is 50%.

How many days does it rain in September in Avocado Heights?

In Avocado Heights, in September, during 2.2 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

What is the average length of the day in September in Avocado Heights?

In September, the average day length in Avocado Heights, California, is 12h and 22min.

What time are sunrise and sunset in September in Avocado Heights?

On the first day of September in Avocado Heights, California, sunrise is at 6:26 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:37 pm PDT.

How long on average sun shines in September in Avocado Heights?

In September, the average sunshine duration is 10.7h.

How high is the UV index in September in Avocado Heights?

In Avocado Heights, California, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Avocado Heights, CA

Average temperature in September - Avocado Heights, CA
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is December (64.6°F).

  • Average low temperature in September: 64.4°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (48°F).

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Average pressure in September
Avocado Heights, CA

Average pressure in September - Avocado Heights, CA
  • Average pressure in September: 29.89"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in September
Avocado Heights, CA

Average wind speed in September - Avocado Heights, CA
  • Average wind speed in September: 4.6mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.6mph).

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Average humidity in September
Avocado Heights, CA

Average humidity in September - Avocado Heights, CA
  • Average humidity in September: 50%

The months with the highest relative humidity are May and June (58%).
The month with the lowest relative humidity is November (46%).

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Average rainfall in September
Avocado Heights, CA

Average rainfall in September - Avocado Heights, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is December (1.3").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in September
Avocado Heights, CA

Average rainfall days in September - Avocado Heights, CA
  • Average rainfall days in September: 2.2 days

The month with the highest number of rainy days is March (5.9 days).
The month with the least rainy days is August (1.2 days).

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Average daylight in September /
Average sunshine in September
Avocado Heights, CA

Average daylight in September / Average sunshine in September - Avocado Heights, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 48min).

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Average sunshine days in September
Avocado Heights, CA

Average sunshine days in September - Avocado Heights, CA
  • Average sunshine days in September: 26.6 days

The months with the most sunshine days are June and August (27.9 days).
The month with the least sunshine days is February (22.3 days).

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Average UV index in September
Avocado Heights, CA

Average UV index in September - Avocado Heights, CA
  • Average UV index in September: 6

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in September
Avocado Heights, CA

Average cloud cover in September - Avocado Heights, CA
  • Average cloud cover in September: 8

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

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Average visibility in September
Avocado Heights, CA

Average visibility in September - Avocado Heights, 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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Avocado Heights, California, USA

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