September weather forecast and climate
Poplar Grove, AR

Weather in September

The first month of the autumn, September, is also a moderately hot month in Poplar Grove, Arkansas, with average temperature varying between 65.8°F (18.8°C) and 83.8°F (28.8°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a moderately hot 83.8°F (28.8°C). The average low-temperature, in September, is 65.8°F (18.8°C).

Heat index

The average heat index is estimated at a tropical 91°F (32.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. 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', 'real feel', 'apparent temperature', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like pregnancy, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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.

Humidity

In Poplar Grove, the average relative humidity is 73%.

Rainfall

In Poplar Grove, in September, it is raining for 10.8 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Poplar Grove, there are 132.5 rainfall days, and 22.8" (579mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Poplar Grove.

Daylight

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

Sunshine

In Poplar Grove, the average sunshine in September is 9.6h.

UV index

In Poplar Grove, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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 Poplar Grove?

In Poplar Grove, in September, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines relative humidity and air temperature, in September is evaluated at 91°F (32.8°C).

What is the average humidity in September in Poplar Grove?

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

How much does it rain in Poplar Grove in September?

In Poplar Grove, Arkansas, during September, the rain falls for 10.8 days and regularly aggregates up to 1.42" (36mm) of precipitation.

When it does not snow in Poplar Grove?

April through October are months without snowfall in Poplar Grove, Arkansas.

What is the average length of the day in September in Poplar Grove?

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

How many hours of sunshine does Poplar Grove have in September?

In Poplar Grove, Arkansas, the average sunshine in September is 9.6h.

How high is the UV index in September in Poplar Grove?

In Poplar Grove, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Poplar Grove, AR

Average temperature in September - Poplar Grove, AR
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48.2°F).

  • Average low temperature in September: 65.8°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

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Average pressure in September
Poplar Grove, AR

Average pressure in September - Poplar Grove, 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 (29.94").

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Average wind speed in September
Poplar Grove, AR

Average wind speed in September - Poplar Grove, AR
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Poplar Grove, AR

Average humidity in September - Poplar Grove, AR
  • Average humidity in September: 73%

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

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Average rainfall in September
Poplar Grove, AR

Average rainfall in September - Poplar Grove, AR
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is November (1.22").

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Average rainfall days in September
Poplar Grove, AR

Average rainfall days in September - Poplar Grove, AR
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is November (7.7 days).

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Average snowfall in September
Poplar Grove, AR

Average snowfall in September - Poplar Grove, 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 and October (0").

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Average snowfall days in September
Poplar Grove, AR

Average snowfall days in September - Poplar Grove, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 days).
Months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Poplar Grove, AR

Average daylight in September / Average sunshine in September - Poplar Grove, 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: 9.6h

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
Poplar Grove, AR

Average sunshine days in September - Poplar Grove, AR
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in September
Poplar Grove, AR

Average UV index in September - Poplar Grove, AR
  • Average UV index in September: 6

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Poplar Grove, AR

Average cloud cover in September - Poplar Grove, AR
  • Average cloud cover in September: 29

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
Poplar Grove, AR

Average visibility in September - Poplar Grove, 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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