September weather forecast
Topock, AZ

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Weather in September

The first month of the autumn, September, is also a hot month in Topock, Arizona, with an average temperature ranging between max 94.8°F (34.9°C) and min 77.4°F (25.2°C).

Temperature

The onset of September is marked by a minor decrease in temperature, transitioning from a fiery hot 101.7°F (38.7°C) in August to a tropical 94.8°F (34.9°C). In September, Topock experiences a temperature dip to an average of 77.4°F (25.2°C) at night.

Humidity

The average relative humidity in September in Topock is 24%.

Rainfall

In September, the rain falls for 4.3 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. Throughout the year, there are 41.8 rainfall days, and 4.21" (107mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, 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 MST.

Sunshine

In Topock, the average sunshine in September is 10.1h.

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 exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 7 in September leads to these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In Topock, 94.8°F (34.9°C) is the average high-temperature and 77.4°F (25.2°C) is the average low-temperature during September.

What is the average humidity in September?

In September, the average relative humidity is 24%.

How much does it rain in September?

In September, the rain falls for 4.3 days. Throughout September, 0.43" (11mm) of precipitation is accumulated.

How many hours of daylight does Topock have in September?

In September, the average day length is 12h and 23min.

When are sunrise and sunset in September in Topock?

On the first day of September, 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 MST.

How long on average sun shines in September?

The average sunshine duration in September is 10.1h.

How high is the UV index in September?

In Topock, 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
Topock, AZ

Average temperature in September - Topock, AZ
  • Average high temperature in September: 94.8°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (59°F).

  • Average low temperature in September: 77.4°F

The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).

Average pressure in September
Topock, AZ

Average pressure in September - Topock, AZ
  • Average pressure in September: 29.82"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).

Average wind speed in September
Topock, AZ

Average wind speed in September - Topock, AZ
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

Average humidity in September
Topock, AZ

Average humidity in September - Topock, AZ
  • Average humidity in September: 24%

The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (14%).

Average rainfall in September
Topock, AZ

Average rainfall in September - Topock, AZ
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is July (0.67").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in September
Topock, AZ

Average rainfall days in September - Topock, AZ
  • Average rainfall days in September: 4.3 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.1 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 10h and 1min

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

Average sunshine days in September
Topock, AZ

Average sunshine days in September - Topock, AZ
  • Average sunshine days in September: 22.8 days

The month with the most sunshine days is November (28.1 days).
The month with the least sunshine days is July (17.9 days).

Average UV index in September
Topock, AZ

Average UV index in September - Topock, 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).

Average cloud cover in September
Topock, AZ

Average cloud cover in September - Topock, AZ
  • 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
Topock, AZ

Average visibility in September - Topock, 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).

Topock, Arizona, USA

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