September weather forecast and climate
Banks, AR

Weather in September

The first month of the autumn, September, is still a tropical month in Banks, Arkansas, with average temperature varying between 87.4°F (30.8°C) and 66°F (18.9°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a still hot 87.4°F (30.8°C). In September, the average low-temperature is 66°F (18.9°C).

Heat index

In September, the average heat index is evaluated at a very hot 99.3°F (37.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values 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', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, metabolic differences, differences in body mass, height, and shape), 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 especially crucial for babies and toddlers. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 71%.

Rainfall

In Banks, during September, the rain falls for 11.4 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 141.2 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

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

Sunshine

In Banks, the average sunshine is 9.7h.

UV index

In Banks, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Banks?

The average high-temperature, in September, is 87.4°F (30.8°C), while the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 99.3°F (37.4°C).

What is the average humidity in September in Banks?

The average relative humidity in September in Banks is 71%.

How many days does it rain in September in Banks?

In Banks, Arkansas, in September, during 11.4 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When it does not snow in Banks?

April through November are months without snowfall in Banks, Arkansas.

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

The average length of the day in September is 12.4h.

How many hours of sunshine does Banks have in September?

In Banks, the average sunshine in September is 9.7h.

How high is the UV index in September in Banks?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in September
Banks, AR

Average temperature in September - Banks, AR
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (51.6°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (36°F).

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Average pressure in September
Banks, AR

Average pressure in September - Banks, AR
  • Average pressure in September: 29.99"

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

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Average wind speed in September
Banks, AR

Average wind speed in September - Banks, AR
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Banks, AR

Average humidity in September - Banks, AR
  • Average humidity in September: 71%

Months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Banks, AR

Average rainfall in September - Banks, AR
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is April (2.6").
The driest month (with the least rainfall) is November (1.1").

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Average rainfall days in September
Banks, AR

Average rainfall days in September - Banks, AR
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is August (15.8 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in September
Banks, AR

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

The month with the highest snowfall is February (0.47").
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
Banks, AR

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

The month with the highest number of snowfall days is February (1.5 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
Banks, AR

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

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 9.7h

Months with the most sunshine are June, July and August (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in September
Banks, AR

Average sunshine days in September - Banks, AR
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is August (12.4 days).

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Average UV index in September
Banks, AR

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

Months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Banks, AR

Average cloud cover in September - Banks, AR
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June, July, August and September (Cloud cover 28).

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Average visibility in September
Banks, AR

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

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

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