September weather forecast and climate
Springdale, AR

Weather in September

September, the first month of the autumn, in Springdale, is also a moderately hot month, with average temperature varying between 81°F (27.2°C) and 60.6°F (15.9°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 88°F (31.1°C) in August, to a warm 81°F (27.2°C). The average low-temperature, in Springdale, is 60.6°F (15.9°C).

Heat index

In September, the average heat index is estimated at 85.1°F (29.5°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. 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', 'apparent temperature', 'real feel', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise 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 is 73%.

Rainfall

In September, the rain falls for 14 days. Throughout September, 2.48" (63mm) of precipitation is accumulated. In Springdale, during the entire year, the rain falls for 161.1 days and collects up to 34.09" (866mm) of precipitation.

Snowfall

June through October are months without snowfall in Springdale, Arkansas.

Daylight

In Springdale, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine in Springdale, Arkansas, is 9.5h.

UV index

In September, the average daily maximum UV index in Springdale is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Springdale?

In September, in Springdale, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 60.6°F (15.9°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), that combines relative humidity and air temperature, is estimated at 85.1°F (29.5°C).

What is the average humidity in September in Springdale?

In September, the average relative humidity is 73%.

How much does it rain in Springdale in September?

In Springdale, in September, it is raining for 14 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow in Springdale?

June through October are months without snowfall.

How many hours of daylight does Springdale have in September?

In Springdale, the average length of the day in September is 12.4h.

How many hours of sunshine does Springdale have in September?

The average sunshine in September in Springdale, Arkansas, is 9.5h.

What is the UV index reading in September in Springdale?

In Springdale, Arkansas, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Springdale, AR

Average temperature in September - Springdale, AR
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.4°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure in September
Springdale, AR

Average pressure in September - Springdale, AR
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in September
Springdale, AR

Average wind speed in September - Springdale, AR
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in September
Springdale, AR

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

Months with the highest relative humidity are March and May (77%).
Months with the lowest relative humidity are August and October (72%).

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Average rainfall in September
Springdale, AR

Average rainfall in September - Springdale, AR
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.81").

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Average rainfall days in September
Springdale, AR

Average rainfall days in September - Springdale, AR
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in September
Springdale, AR

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

The month with the highest snowfall is February (2.05").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Springdale, AR

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

The month with the highest number of snowfall days is February (4.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Springdale, AR

Average daylight in September / Average sunshine in September - Springdale, AR
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.5h

The month with the most sunshine is August (Average sunshine: 10.7h).
Months with the least sunshine are January and December (Average sunshine: 5.5).

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Average sunshine days in September
Springdale, AR

Average sunshine days in September - Springdale, AR
  • Average sunshine days in September: 14.1 days

Months with the most sunshine days are January and December (18.5 days).
The month with the least sunshine days is July (10.5 days).

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Average UV index in September
Springdale, AR

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

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Springdale, AR

Average cloud cover in September - Springdale, AR
  • Average cloud cover in September: 27

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Springdale, AR

Average visibility in September - Springdale, AR
  • 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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