September weather forecast
Brockwell, AR

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Brockwell, Arkansas, with an average temperature varying between 61.5°F (16.4°C) and 82.2°F (27.9°C).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from a tropical 89.2°F (31.8°C) in August to a warm 82.2°F (27.9°C). In Brockwell, an average nighttime temperature of 61.5°F (16.4°C) is expected during September.

Heat index

For most parts of September, the heat index is evaluated at a hot 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in September in Brockwell, Arkansas, is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

April through October are months without snowfall in Brockwell.

Daylight

The average length of the day in September in Brockwell is 12h and 24min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:52 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What are September temperatures in Brockwell?

In Brockwell, in September, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 61.5°F (16.4°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is evaluated at 87.8°F (31°C).

What is the average humidity in September in Brockwell?

In Brockwell, the average relative humidity in September is 74%.

What is the driest month in Brockwell?

September is the month with the least rainfall in Brockwell. Rain falls for 12.9 days and accumulates 1.89" (48mm) of precipitation.

How much does it rain in Brockwell in September?

In September, in Brockwell, the rain falls for 12.9 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

When it does not snow in Brockwell?

April through October are months without snowfall in Brockwell.

How many hours of daylight does Brockwell have in September?

In September, the average day length is 12h and 24min.

When are sunrise and sunset in September in Brockwell?

On the first day of September in Brockwell, Arkansas, sunrise is at 6:39 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:52 pm CDT.

How long on average sun shines in September in Brockwell?

In September, the average sunshine duration is 9.4h.

How high is the UV index in September in Brockwell?

In Brockwell, Arkansas, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
Brockwell, AR

Average temperature in September - Brockwell, AR
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in September: 61.5°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in September
Brockwell, AR

Average pressure in September - Brockwell, AR
  • Average pressure in September: 30.02"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
Brockwell, AR

Average wind speed in September - Brockwell, AR
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Brockwell, AR

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

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Brockwell, AR

Average rainfall in September - Brockwell, AR
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in September
Brockwell, AR

Average rainfall days in September - Brockwell, AR
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in September
Brockwell, AR

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

The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Brockwell, AR

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

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Brockwell, 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 42min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in September
Brockwell, AR

Average sunshine days in September - Brockwell, AR
  • Average sunshine days in September: 14 days

The months with the most sunshine days are January and December (19.5 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in September
Brockwell, AR

Average UV index in September - Brockwell, 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
Brockwell, AR

Average cloud cover in September - Brockwell, AR
  • Average cloud cover in September: 30

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

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Average visibility in September
Brockwell, AR

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

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

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Brockwell, Arkansas, USA

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