September weather forecast and climate
Willcox, AZ

Weather in September

The first month of the autumn, September, is also a moderately hot month in Willcox, Arizona, with average temperature ranging between max 83.8°F (28.8°C) and min 64.6°F (18.1°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 89.2°F (31.8°C) in August, to a moderately hot 83.8°F (28.8°C). In September, the average low-temperature is 64.6°F (18.1°C).

Heat index

In September, the average heat index is appraised at 84.2°F (29°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, clothing, wind, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Willcox, the average relative humidity in September is 46%.

Rainfall

In Willcox, it is raining for 12.8 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 92.5 rainfall days, and 12.36" (314mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Willcox.

Daylight

In September, the average length of the day in Willcox is 12.3h.

Sunshine

The average sunshine in September is 10.2h.

UV index

The average daily maximum UV index in Willcox is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Willcox?

In September, in Willcox, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), that combines air temperature and relative humidity, in September is appraised at 84.2°F (29°C).

What is the average humidity in September in Willcox?

In September, the average relative humidity in Willcox, Arizona, is 46%.

How much does it rain in Willcox in September?

In Willcox, in September, during 12.8 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Willcox?

April through November are months without snowfall in Willcox.

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

In Willcox, the average length of the day in September is 12.3h.

How many hours of sunshine does Willcox have in September?

In September, the average sunshine in Willcox, Arizona, is 10.2h.

What is the UV index reading in September in Willcox?

In September, the average daily maximum UV index in Willcox is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
Willcox, AZ

Average temperature in September - Willcox, AZ
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is June (92.1°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

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Average pressure in September
Willcox, AZ

Average pressure in September - Willcox, AZ
  • Average pressure in September: 29.93"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.86").

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Average wind speed in September
Willcox, AZ

Average wind speed in September - Willcox, AZ
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
Willcox, AZ

Average humidity in September - Willcox, AZ
  • Average humidity in September: 46%

The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in September
Willcox, AZ

Average rainfall in September - Willcox, AZ
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is May (0.08").

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Average rainfall days in September
Willcox, AZ

Average rainfall days in September - Willcox, AZ
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is May (2.6 days).

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Average snowfall in September
Willcox, AZ

Average snowfall in September - Willcox, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.87").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Willcox, AZ

Average snowfall days in September - Willcox, AZ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (1.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Willcox, AZ
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 10.2h

The month with the most sunshine is August (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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Average sunshine days in September
Willcox, AZ

Average sunshine days in September - Willcox, AZ
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is May (27.4 days).
The month with the least sunshine days is July (6.6 days).

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Average UV index in September
Willcox, AZ

Average UV index in September - Willcox, AZ
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January, November and December (UV index 3).

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Average cloud cover in September
Willcox, AZ

Average cloud cover in September - Willcox, AZ
  • Average cloud cover in September: 15

Months with the most cloud cover are July and December (Cloud cover 20).
The month with the least cloud cover is May (Cloud cover 8).

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Average visibility in September
Willcox, AZ

Average visibility in September - Willcox, AZ
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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