September weather forecast and climate
McGehee, AR

Weather in September

The first month of the autumn, September, is still a warm month in McGehee, Arkansas, with average temperature ranging between min 67.3°F (19.6°C) and max 85.6°F (29.8°C).

Temperature

In September, the average high-temperature is practically the same as in August - a moderately hot 85.6°F (29.8°C). In September, the average low-temperature is 67.3°F (19.6°C).

Heat index

The average heat index is evaluated at a sweltering 95°F (35°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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, clothing, wind). 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In McGehee, Arkansas, the average relative humidity is 72%.

Rainfall

The month with the least rainfall is September when the rain falls for 12.8 days and typically collects 2.17" (55mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

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

Sunshine

The average sunshine in September is 9.8h.

UV index

The average daily maximum UV index in McGehee, Arkansas, is 6. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 McGehee?

In September, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines air temperature and relative humidity, in September is calculated to 95°F (35°C).

What is the average humidity in September in McGehee?

In McGehee, Arkansas, the average relative humidity in September is 72%.

How much does it rain in McGehee in September?

In McGehee, Arkansas, in September, it is raining for 12.8 days, with typically 2.17" (55mm) of accumulated precipitation.

What is the driest month in McGehee?

The month with the least rainfall in McGehee is September when the rain falls for 12.8 days and typically collects 2.17" (55mm) of precipitation.

When it does not snow in McGehee?

April through October are months without snowfall.

How many hours of daylight does McGehee have in September?

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

How many hours of sunshine does McGehee have in September?

In September, the average sunshine in McGehee, Arkansas, is 9.8h.

What is the UV index intensity in September in McGehee?

The average daily maximum UV index in September in McGehee is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in September
McGehee, AR

Average temperature in September - McGehee, AR
  • Average high temperature in September: 85.6°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 (51.1°F).

  • Average low temperature in September: 67.3°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

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Average pressure in September
McGehee, AR

Average pressure in September - McGehee, 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 (29.95").

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Average wind speed in September
McGehee, AR

Average wind speed in September - McGehee, AR
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
McGehee, AR

Average humidity in September - McGehee, AR
  • Average humidity in September: 72%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
McGehee, AR

Average rainfall in September - McGehee, AR
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in September
McGehee, AR

Average rainfall days in September - McGehee, AR
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is October (8.6 days).

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Average snowfall in September
McGehee, AR

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

The month with the highest snowfall is February (0.71").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
McGehee, AR

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

The month with the highest number of snowfall days is February (1.6 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
McGehee, AR

Average daylight in September / Average sunshine in September - McGehee, 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: 9.8h

The month with the most sunshine is June (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
McGehee, AR

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

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in September
McGehee, AR

Average UV index in September - McGehee, AR
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
McGehee, AR

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

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in September
McGehee, AR

Average visibility in September - McGehee, 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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