September weather forecast and climate
Mena, AR

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mena, Arkansas, with average temperature varying between 62.6°F (17°C) and 83.3°F (28.5°C).

Temperature

In September, the average high-temperature marginally drops, from a tropical 90.1°F (32.3°C) in August, to a warm 83.3°F (28.5°C). The average low-temperature, in September, is 62.6°F (17°C).

Heat index

In September, the average heat index is estimated at a hot 90°F (32.2°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'felt air temperature', 'apparent 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, pregnancy, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. 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

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

Rainfall

In Mena, Arkansas, during 14.2 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Mena, during the entire year, the rain falls for 164 days and collects up to 40.12" (1019mm) of precipitation.

Snowfall

In Mena snow does not fall in April through October.

Daylight

The average length of the day in Mena, Arkansas, is 12.4h.

Sunshine

The average sunshine in September is 9.3h.

UV index

In Mena, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
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.
[Resources]

FAQ

What is the temperature in September in Mena?

In September, in Mena, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), that takes the relative humidity and factores it into the air temperature reading, in September is appraised at 90°F (32.2°C).

What is the average humidity in September in Mena?

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

How many days does it rain in September in Mena?

In Mena, Arkansas, in September, during 14.2 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow in Mena?

April through October are months without snowfall.

How many hours of daylight does Mena have in September?

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

How many hours of sunshine does Mena have in September?

The average sunshine in September is 9.3h.

What is the UV index intensity in September in Mena?

In Mena, Arkansas, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in September
Mena, AR

Average temperature in September - Mena, AR
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (48.2°F).

  • Average low temperature in September: 62.6°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).

[Resources]

Average pressure in September
Mena, AR

Average pressure in September - Mena, AR
  • Average pressure in September: 30"

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

[Resources]

Average wind speed in September
Mena, AR

Average wind speed in September - Mena, AR
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

[Resources]

Average humidity in September
Mena, AR

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

Months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is August (72%).

[Resources]

Average rainfall in September
Mena, AR

Average rainfall in September - Mena, AR
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is January (2.28").

[Resources]

Average rainfall days in September
Mena, AR

Average rainfall days in September - Mena, AR
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (9.6 days).

[Resources]

Average snowfall in September
Mena, AR

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

The month with the highest snowfall is February (0.94").
Months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Mena, AR

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

The month with the highest number of snowfall days is February (2.3 days).
Months with the least snowfall days are April, May, June, July, August and September (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Mena, 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: 9.9h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is August (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 5.1h).

[Resources]

Average sunshine days in September
Mena, AR

Average sunshine days in September - Mena, AR
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (9.7 days).

[Resources]

Average UV index in September
Mena, AR

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

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

[Resources]

Average cloud cover in September
Mena, AR

Average cloud cover in September - Mena, AR
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June, August and September (Cloud cover 29).

[Resources]

Average visibility in September
Mena, AR

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

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

[Resources]