September weather forecast
Stoval, AZ

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Weather in September

September, the first month of the autumn in Stoval, is still a torrid month, with an average temperature varying between 98.2°F (36.8°C) and 81°F (27.2°C).

Temperature

The onset of September is marked by a minor decrease in temperature, transitioning from a fiery hot 103.6°F (39.8°C) in August to a still very hot 98.2°F (36.8°C). September nights in Stoval observe an average temperature dip to a warm 81°F (27.2°C).

Humidity

The average relative humidity in September in Stoval, Arizona, is 31%.

Rainfall

In Stoval, Arizona, in September, it is raining for 6 days, with typically 0.51" (13mm) of accumulated precipitation. In Stoval, during the entire year, the rain falls for 39.5 days and collects up to 4.06" (103mm) of precipitation.

Daylight

In Stoval, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:09 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:19 pm MST.

Sunshine

In Stoval, the average sunshine in September is 9.7h.

UV index

In Stoval, 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 average individuals.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot is it in Stoval in September?

Stoval in September has an average high-temperature of 98.2°F (36.8°C) and an average low-temperature of 81°F (27.2°C).

What is the average humidity in September in Stoval?

The average relative humidity in September in Stoval is 31%.

How much does it rain in Stoval in September?

In Stoval, in September, during 6 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

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

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

When is the sunrise / sunset in September in Stoval?

In September, on the first day of the month, sunrise is at 6:09 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:19 pm MST.

How long on average sun shines in September in Stoval?

The average sunshine duration in September in Stoval is 9.7h.

What is the UV index reading in September in Stoval?

The average daily maximum UV index in September in Stoval, Arizona, is 7. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Stoval, AZ

Average temperature in September - Stoval, AZ
  • Average high temperature in September: 98.2°F

The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).

  • Average low temperature in September: 81°F

The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).

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Average pressure in September
Stoval, AZ

Average pressure in September - Stoval, AZ
  • Average pressure in September: 29.78"Hg

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).

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Average wind speed in September
Stoval, AZ

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

The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

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Average humidity in September
Stoval, AZ

Average humidity in September - Stoval, AZ
  • Average humidity in September: 31%

The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in September
Stoval, AZ

Average rainfall in September - Stoval, AZ
  • Average rainfall in September: 0.51"

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

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Average rainfall days in September
Stoval, AZ

Average rainfall days in September - Stoval, AZ
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).

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

Average daylight in September / Average sunshine in September - Stoval, 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: 7h and 6min).

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Average sunshine days in September
Stoval, AZ

Average sunshine days in September - Stoval, AZ
  • Average sunshine days in September: 22.3 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

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Average UV index in September
Stoval, AZ

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

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).

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Average cloud cover in September
Stoval, AZ

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

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in September
Stoval, AZ

Average visibility in September - Stoval, 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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Stoval, Arizona, USA

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