September weather forecast
Springdale, AR

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Weather in September

September marks the beginning of the fall season in Springdale, with a notable decrease in temperature, sharing similarities with values found in May. Daylight hours reduce further, averaging 12.4 hours, signaling a change from summer to autumn. Although it's the start of fall, the weather is still considerably warm, encouraging outdoor activities. Cloud coverage increases in comparison to August, urging a feel of autumn. September's calming transition from summer's heat to autumn's chill can be felt in the city, softly preparing its inhabitants for the changing season.

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's tropical 88°F (31.1°C) to a moderately hot 81°F (27.2°C). An average temperature of 60.6°F (15.9°C) marks the nights in Springdale, Arkansas, in September.

Heat index

For most parts of September, the heat index is evaluated at 84.2°F (29°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

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

Rainfall

In Springdale, during September, the rain falls for 14 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, in Springdale, there are 161.1 rainfall days, and 34.09" (866mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In Springdale, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:01 pm CDT.

Sunshine

The average sunshine in September in Springdale is 9.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What are the temperatures in Springdale in September?

During September, Springdale experiences an average high-temperature of 81°F (27.2°C) and a low-temperature of 60.6°F (15.9°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 84.2°F (29°C).

What is the average humidity in September in Springdale?

In Springdale, Arkansas, the average relative humidity in September 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?

In Springdale, snow does not fall in June through October.

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

In September, the average day length is 12h and 24min.

What time are sunrise and sunset in September in Springdale?

On the first day of September, sunrise is at 6:48 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm CDT.

How long on average sun shines in September in Springdale?

The average sunshine duration in September is 9.5h.

What is the UV index intensity in September in Springdale?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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%

The months with the highest relative humidity are March and May (77%).
The 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").
The 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).
The 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: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

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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

The 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

The months with the highest UV index are May, June, July and August (UV index 6).
The 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

The 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

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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Springdale, Arkansas, USA

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