September weather forecast
Farmington, AR

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Farmington, Arkansas, with an average temperature fluctuating between 81°F (27.2°C) and 61.2°F (16.2°C).

Temperature

A subtle shift in Farmington's weather is observed as August turns into September, with the average high temperature reducing from a hot 87.8°F (31°C) to a moderately hot 81°F (27.2°C). September's nights in Farmington observe an average temperature of 61.2°F (16.2°C).

Heat index

In September, the heat index is estimated at a hot 86°F (30°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
One should consider that heat index numbers are for shaded settings and light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating 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

The average relative humidity in September in Farmington is 74%.

Rainfall

In Farmington, Arkansas, during September, the rain falls for 12.3 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Farmington, during the entire year, the rain falls for 148.4 days and collects up to 32.24" (819mm) of precipitation.

Snowfall

In Farmington, snow does not fall in June through October.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:01 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index in Farmington is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. To protect against the Sun's most potent rays, avoid direct exposure around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the usual temperature for Farmington in September?

The high-temperature, in September, in Farmington, records 81°F (27.2°C), while the low-temperature is 61.2°F (16.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 86°F (30°C).

What is the average humidity in September in Farmington?

The average relative humidity in September is 74%.

How many days does it rain in September in Farmington?

In September, the rain falls for 12.3 days. Throughout September, 2.36" (60mm) of precipitation is accumulated.

When it does not snow in Farmington?

In Farmington, Arkansas, snow does not fall in June through October.

How many hours of daylight does Farmington have in September?

The average day length in September in Farmington is 12h and 23min.

What time are sunrise and sunset in September in Farmington?

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 7:11 am and sunset at 7:01 pm CDT.

How many hours of sunshine does Farmington have in September?

In Farmington, the average sunshine duration in September is 9.4h.

What is the UV index intensity in September in Farmington?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Farmington, AR

Average temperature in September - Farmington, AR
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure in September
Farmington, AR

Average pressure in September - Farmington, 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).

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Average wind speed in September
Farmington, AR

Average wind speed in September - Farmington, AR
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in September
Farmington, AR

Average humidity in September - Farmington, AR
  • Average humidity in September: 74%

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

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Average rainfall in September
Farmington, AR

Average rainfall in September - Farmington, AR
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.85").

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Average rainfall days in September
Farmington, AR

Average rainfall days in September - Farmington, AR
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is November (8 days).

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Average snowfall in September
Farmington, AR

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

The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Farmington, AR

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

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Farmington, 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 18min).

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Average sunshine days in September
Farmington, AR

Average sunshine days in September - Farmington, AR
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (12.7 days).

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Average UV index in September
Farmington, AR

Average UV index in September - Farmington, 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 and December (UV index 2).

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Average cloud cover in September
Farmington, AR

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

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in September
Farmington, AR

Average visibility in September - Farmington, 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).

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Farmington, Arkansas, USA

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