September weather forecast
Deer, AR

Weather in September

The first month of the autumn, September, is still a warm month in Deer, Arkansas, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 83.7°F (28.7°C).

Temperature

In Deer, the average high-temperature in September slightly decreases from a tropical 90.7°F (32.6°C) in August to a warm 83.7°F (28.7°C). In Deer, the average low-temperature is 61.7°F (16.5°C).

Heat index

The average heat index in September is computed to be a hot 90.7°F (32.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With 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 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, differences in body mass, height, and shape, wind, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in September in Deer is 73%.

Rainfall

The months with the least rainfall are July and September Rain falls for 11.7 days and accumulates 2.36" (60mm) of rain.

Snowfall

April through October are months without snowfall in Deer.

Daylight

The average length of the day in September in Deer is 12h and 23min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:58 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In Deer, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Deer?

In September, in Deer, Arkansas, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 61.7°F (16.5°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 90.7°F (32.6°C).

What is the average humidity in September in Deer?

In September, the average relative humidity in Deer is 73%.

What is the driest month in Deer?

July and September are months with the least rain in Deer when the rain falls for 11.7 days and typically aggregates up to 2.36" (60mm) of rain.

How many days does it rain in September in Deer?

In September, in Deer, the rain falls for 11.7 days. Throughout September, 2.36" (60mm) of precipitation is accumulated.

When it does not snow in Deer?

April through October are months without snowfall in Deer, Arkansas.

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

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

What time are sunrise and sunset in September in Deer?

On the first day of September in Deer, Arkansas, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:58 pm CDT.

How many hours of sunshine does Deer have in September?

In Deer, Arkansas, the average sunshine duration in September is 9.3h.

What is the UV index intensity in September in Deer?

The average daily maximum UV index in September in Deer, Arkansas, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Deer, AR

Average temperature in September - Deer, AR
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in September
Deer, AR

Average pressure in September - Deer, AR
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Deer, AR

Average wind speed in September - Deer, AR
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in September
Deer, AR

Average humidity in September - Deer, AR
  • Average humidity in September: 73%

The months with the highest relative humidity are March and May (79%).
The months with the lowest relative humidity are July and August (72%).

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Average rainfall in September
Deer, AR

Average rainfall in September - Deer, AR
  • Average rainfall in September: 2.36"

The wettest months (with the highest rainfall) are April and May (4.41").
The driest months (with the least rainfall) are July and September (2.36").

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Average rainfall days in September
Deer, AR

Average rainfall days in September - Deer, AR
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is November (9 days).

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Average snowfall in September
Deer, AR

Average snowfall in September - Deer, AR
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Deer, AR

Average snowfall days in September - Deer, AR
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (1.5 days).
The 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
Deer, AR

Average daylight in September / Average sunshine in September - Deer, AR
  • Average daylight in September: 12h and 23min

The month with the longest days is June (Average daylight: 14h and 33min).
The month with the shortest days is December (Average daylight: 9h and 47min).

  • Average sunshine in September: 9h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

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Average sunshine days in September
Deer, AR

Average sunshine days in September - Deer, AR
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13.2 days).

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Average UV index in September
Deer, AR

Average UV index in September - Deer, AR
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Deer, AR

Average cloud cover in September - Deer, AR
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Deer, AR

Average visibility in September - Deer, AR
  • Average visibility in September: 6mi

The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, November and December (5mi).

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