September weather forecast
Riggs, AR

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Weather in September

September, the first month of the autumn in Riggs, is also a moderately hot month, with an average temperature fluctuating between 82°F (27.8°C) and 64°F (17.8°C).

Temperature

September signals a slight drop in average high-temperature, sliding from August's tropical 87.6°F (30.9°C) to a moderately hot 82°F (27.8°C). Throughout September, a steady low-temperature average of 64°F (17.8°C) is noted.

Heat index

September's heat index is computed to be a hot 87.8°F (31°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In September, the average relative humidity is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.3 days and accumulates 0.71" (18mm) of precipitation.

Snowfall

In Riggs, snow does not fall in April through October.

Daylight

In September, the average length of the day in Riggs is 12h and 23min.
On the first day of September in Riggs, sunrise is at 6:36 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:48 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What is the temperature in September in Riggs?

The average high-temperature, in September, in Riggs, is 82°F (27.8°C), while the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in September in Riggs?

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

What is the driest month in Riggs?

September is the month with the least rainfall in Riggs, Arkansas. Rain falls for 9.3 days and accumulates 0.71" (18mm) of precipitation.

How much does it rain in Riggs in September?

In Riggs, Arkansas, in September, it is raining for 9.3 days, with typically 0.71" (18mm) of accumulated precipitation.

When it does not snow in Riggs?

In Riggs, Arkansas, snow does not fall in April through October.

How many hours of daylight does Riggs have in September?

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

When are sunrise and sunset in September in Riggs?

On the first day of September in Riggs, sunrise is at 6:36 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:48 pm CDT.

How many hours of sunshine does Riggs have in September?

The average sunshine duration in September in Riggs is 9.6h.

What is the UV index reading in September in Riggs?

The average daily maximum UV index in September in Riggs is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Riggs, AR

Average temperature in September - Riggs, AR
  • Average high temperature in September: 82°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 (45.1°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).

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Average pressure in September
Riggs, AR

Average pressure in September - Riggs, AR
  • Average pressure in September: 30.01"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
Riggs, AR

Average wind speed in September - Riggs, AR
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in September
Riggs, AR

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

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Riggs, AR

Average rainfall in September - Riggs, AR
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in September
Riggs, AR

Average rainfall days in September - Riggs, AR
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is December (7.1 days).

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Average snowfall in September
Riggs, AR

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

The month with the highest snowfall is March (0.24").
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
Riggs, AR

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

The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Riggs, AR
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in September
Riggs, AR

Average sunshine days in September - Riggs, AR
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in September
Riggs, AR

Average UV index in September - Riggs, 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
Riggs, AR

Average cloud cover in September - Riggs, 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 June (Cloud cover 24).

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Average visibility in September
Riggs, AR

Average visibility in September - Riggs, 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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Riggs, Arkansas, USA

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