September weather forecast
Prairie Grove, AR

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Weather in September

The first month of the autumn, September, is still a warm month in Prairie Grove, Arkansas, with an average temperature fluctuating between 61.3°F (16.3°C) and 81.3°F (27.4°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from a hot 88.2°F (31.2°C) in August to a warm 81.3°F (27.4°C). Prairie Grove reports an average nighttime low-temperature of 61.3°F (16.3°C) in September.

Heat index

September's mean heat index is computed to be a tropical 86°F (30°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

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

Rainfall

In September, in Prairie Grove, Arkansas, the rain falls for 12.9 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. In Prairie Grove, Arkansas, during the entire year, the rain falls for 158.7 days and collects up to 34.72" (882mm) of precipitation.

Snowfall

In Prairie Grove, snow does not fall in June through October.

Daylight

The average length of the day in September in Prairie Grove is 12h and 23min.
On the first day of September, sunrise is at 6:49 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:01 pm CDT.

Sunshine

The average sunshine in September in Prairie Grove is 9.4h.

UV index

The average daily maximum UV index in September in Prairie Grove is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

What are September temperatures in Prairie Grove?

The high-temperature, in September, in Prairie Grove, is 81.3°F (27.4°C), while the low-temperature averages to 61.3°F (16.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What is the average humidity in September in Prairie Grove?

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

How many days does it rain in September in Prairie Grove?

In Prairie Grove, during September, the rain falls for 12.9 days and regularly aggregates up to 2.6" (66mm) of precipitation.

When it does not snow in Prairie Grove?

June through October are months without snowfall.

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

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

What time are sunrise and sunset in September in Prairie Grove?

On the first day of September in Prairie Grove, sunrise is at 6:49 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:01 pm CDT.

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

The average sunshine duration in September in Prairie Grove is 9.4h.

What is the UV index intensity in September in Prairie Grove?

The average daily maximum UV index in September in Prairie Grove, Arkansas, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Prairie Grove, AR

Average temperature in September - Prairie Grove, AR
  • Average high temperature in September: 81.3°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (44.4°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Prairie Grove, AR

Average pressure in September - Prairie Grove, 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).

Average wind speed in September
Prairie Grove, AR

Average wind speed in September - Prairie Grove, AR
  • Average wind speed in September: 6.7mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in September
Prairie Grove, AR

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

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August and October (72%).

Average rainfall in September
Prairie Grove, AR

Average rainfall in September - Prairie Grove, AR
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is February (1.93").

Average rainfall days in September
Prairie Grove, AR

Average rainfall days in September - Prairie Grove, AR
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Prairie Grove, AR

Average snowfall in September - Prairie Grove, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Prairie Grove, AR

Average snowfall days in September - Prairie Grove, AR
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in September
Prairie Grove, AR

Average sunshine days in September - Prairie Grove, AR
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in September
Prairie Grove, AR

Average UV index in September - Prairie Grove, AR
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Prairie Grove, AR

Average cloud cover in September - Prairie Grove, AR
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in September
Prairie Grove, AR

Average visibility in September - Prairie Grove, 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).

Prairie Grove, Arkansas, USA

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