September weather forecast
Palo Verde, AZ

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Weather in September

September, the first month of the autumn in Palo Verde, is still a torrid month, with temperature in the range of an average low of 78.1°F (25.6°C) and an average high of 96.4°F (35.8°C).

Temperature

With the onset of September, Palo Verde's climate undergoes a slight change as the average high-temperature moves from a sweltering 102°F (38.9°C) in August to a still very hot 96.4°F (35.8°C). During the month of September, an average temperature of 78.1°F (25.6°C) is noted during the nights.

Humidity

The average relative humidity in September is 30%.

Rainfall

The months with the most rainfall are August through October, with an average 1.14" (29mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:05 am and sunset at 6:55 pm. On the last day of September, sunrise is at 6:24 am and sunset at 6:16 pm MST.

Sunshine

The average sunshine in September is 9.7h.

UV index

In Palo Verde, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Palo Verde in September?

The average high-temperature and low-temperature during September are 96.4°F (35.8°C) and 78.1°F (25.6°C) respectively.

What is the average humidity in September?

The average relative humidity in September is 30%.

What is the wettest month?

The months with the most rainfall are August through October, with an average 1.14" (29mm) of precipitation.

How many days does it rain in September?

In Palo Verde, in September, during 6.4 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September in Palo Verde, sunrise is at 6:05 am and sunset at 6:55 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 6:16 pm MST.

How long on average sun shines in September?

In September, the average sunshine duration is 9.7h.

What is the UV index reading in September?

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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
Palo Verde, AZ

Average temperature in September - Palo Verde, AZ
  • Average high temperature in September: 96.4°F

The warmest month (with the highest average high temperature) is July (102.7°F).
The month with the lowest average high temperature is December (62.6°F).

  • Average low temperature in September: 78.1°F

The month with the highest average low temperature is August (84.2°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).

Average pressure in September
Palo Verde, AZ

Average pressure in September - Palo Verde, AZ
  • Average pressure in September: 29.85"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

Average wind speed in September
Palo Verde, AZ

Average wind speed in September - Palo Verde, AZ
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).

Average humidity in September
Palo Verde, AZ

Average humidity in September - Palo Verde, AZ
  • Average humidity in September: 30%

The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (17%).

Average rainfall in September
Palo Verde, AZ

Average rainfall in September - Palo Verde, AZ
  • Average rainfall in September: 1.14"

The wettest months (with the highest rainfall) are August, September and October (1.14").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in September
Palo Verde, AZ

Average rainfall days in September - Palo Verde, AZ
  • Average rainfall days in September: 6.4 days

The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is June (0.9 days).

Average daylight in September /
Average sunshine in September
Palo Verde, AZ

Average daylight in September / Average sunshine in September - Palo Verde, AZ
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in September
Palo Verde, AZ

Average sunshine days in September - Palo Verde, AZ
  • Average sunshine days in September: 20.9 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is August (18 days).

Average UV index in September
Palo Verde, AZ

Average UV index in September - Palo Verde, AZ
  • Average UV index in September: 7

The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Palo Verde, AZ

Average cloud cover in September - Palo Verde, AZ
  • Average cloud cover in September: 10

The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in September
Palo Verde, AZ

Average visibility in September - Palo Verde, AZ
  • 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).

Palo Verde, Arizona, USA

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