September weather forecast
Calzona, CA

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Weather in September

The first month of the autumn, September, is still a very hot month in Calzona, California, with an average temperature fluctuating between 79.9°F (26.6°C) and 96.8°F (36°C).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's torrid 103.6°F (39.8°C) to a still sweltering 96.8°F (36°C). Calzona's nights in September cool down to an average low-temperature of 79.9°F (26.6°C).

Humidity

In Calzona, the average relative humidity in September is 25%.

Rainfall

In Calzona, in September, it is raining for 4.8 days, with typically 0.43" (11mm) of accumulated precipitation. In Calzona, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:03 pm. On the last day of September, in Calzona, sunrise is at 6:32 am and sunset at 6:22 pm PDT.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In Calzona, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 in September translates into these instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The high-temperature, in September, in Calzona, is 96.8°F (36°C), while the low-temperature averages to 79.9°F (26.6°C).

What is the average humidity in September?

In Calzona, the average relative humidity in September is 25%.

How many days does it rain in September?

In Calzona, in September, during 4.8 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

How many hours of daylight does Calzona have in September?

In September, the average day length is 12h and 22min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:03 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:22 pm PDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.8h.

How high is the UV index in September?

In Calzona, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health threat 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
Calzona, CA

Average temperature in September - Calzona, CA
  • Average high temperature in September: 96.8°F

The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in September: 79.9°F

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).

Average pressure in September
Calzona, CA

Average pressure in September - Calzona, CA
  • Average pressure in September: 29.81"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).

Average wind speed in September
Calzona, CA

Average wind speed in September - Calzona, CA
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).

Average humidity in September
Calzona, CA

Average humidity in September - Calzona, CA
  • Average humidity in September: 25%

The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).

Average rainfall in September
Calzona, CA

Average rainfall in September - Calzona, CA
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").

Average rainfall days in September
Calzona, CA

Average rainfall days in September - Calzona, CA
  • Average rainfall days in September: 4.8 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).

Average daylight in September /
Average sunshine in September
Calzona, CA

Average daylight in September / Average sunshine in September - Calzona, 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: 9h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in September
Calzona, CA

Average sunshine days in September - Calzona, CA
  • Average sunshine days in September: 23 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).

Average UV index in September
Calzona, CA

Average UV index in September - Calzona, CA
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Calzona, CA

Average cloud cover in September - Calzona, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in September
Calzona, CA

Average visibility in September - Calzona, 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).

Calzona, California, USA

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