September weather forecast
Glendale, AZ

The scenic and watery landscape of Glendale town in Arizona
The scenic and watery landscape of Glendale town in Arizona

Weather in September

The first month of the autumn, September, is also a sweltering month in Glendale, Arizona, with an average temperature ranging between min 77.4°F (25.2°C) and max 95°F (35°C).

Temperature

In Glendale, Arizona, the average high-temperature in September slightly decreases from a sweltering 100.9°F (38.3°C) in August to a still very hot 95°F (35°C). The average low-temperature, in Glendale, Arizona, is 77.4°F (25.2°C).

Humidity

In September, the average relative humidity in Glendale is 30%.

Rainfall

In September, in Glendale, Arizona, the rain falls for 6.7 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 59.7 rainfall days, and 8.23" (209mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 6:02 am and sunset at 6:54 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 6:14 pm MST.

Sunshine

The average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Glendale?

The average relative humidity in September is 30%.

How many days does it rain in September in Glendale?

In September, the rain falls for 6.7 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

What is the average length of the day in September in Glendale?

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

What time are sunrise and sunset in September in Glendale?

In September, on the first day of the month, sunrise is at 6:02 am and sunset at 6:54 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 6:14 pm MST.

How long on average sun shines in September in Glendale?

In September, the average sunshine duration in Glendale, Arizona, is 9.7h.

What is the UV index intensity in September in Glendale?

In Glendale, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Glendale, AZ

Average temperature in September - Glendale, AZ
  • Average high temperature in September: 95°F

The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (61.9°F).

  • Average low temperature in September: 77.4°F

The month with the highest average low temperature is August (83.7°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).

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Average pressure in September
Glendale, AZ

Average pressure in September - Glendale, AZ
  • Average pressure in September: 29.86"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).

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Average wind speed in September
Glendale, AZ

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

The windiest months (with the highest average wind speed) are April and May (6.6mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).

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Average humidity in September
Glendale, AZ

Average humidity in September - Glendale, 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%).

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Average rainfall in September
Glendale, AZ

Average rainfall in September - Glendale, AZ
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is August (1.18").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Glendale, AZ

Average rainfall days in September - Glendale, AZ
  • Average rainfall days in September: 6.7 days

The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is June (1.1 days).

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Average daylight in September /
Average sunshine in September
Glendale, AZ

Average daylight in September / Average sunshine in September - Glendale, AZ
  • Average daylight in September: 12h and 22min

The month with the longest days is June (Average daylight: 14h and 20min).
The month with the shortest days is December (Average daylight: 9h and 58min).

  • Average sunshine in September: 9h and 42min

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).

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Average sunshine days in September
Glendale, AZ

Average sunshine days in September - Glendale, AZ
  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is May (28.6 days).
The month with the least sunshine days is August (15.9 days).

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Average UV index in September
Glendale, AZ

Average UV index in September - Glendale, AZ
  • Average UV index in September: 7

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

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Average cloud cover in September
Glendale, AZ

Average cloud cover in September - Glendale, AZ
  • Average cloud cover in September: 9

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in September
Glendale, AZ

Average visibility in September - Glendale, 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).

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