September weather forecast
Cullendale, AR

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Weather in September

September, the first month of the autumn in Cullendale, is still a hot month, with an average temperature varying between 66°F (18.9°C) and 87.6°F (30.9°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from 93°F (33.9°C) in August to a still hot 87.6°F (30.9°C). Against the high September temperatures, Cullendale records an average drop to a comfortable 66°F (18.9°C) at night.

Heat index

September's heat index is estimated at a fiery hot 100.4°F (38°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The months with the lowest humidity in Cullendale are July through October, with an average relative humidity of 71%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:36 pm. On the last day of September, in Cullendale, sunrise is at 7:05 am and sunset at 6:56 pm CDT.

Sunshine

The average sunshine in September in Cullendale, Arkansas, is 9.6h.

UV index

In Cullendale, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

How hot is it in Cullendale in September?

In September, in Cullendale, the average high-temperature is 87.6°F (30.9°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in September is estimated at 100.4°F (38°C).

What is the least humid month in Cullendale?

July through October, with an average relative humidity of 71%, are the least humid months in Cullendale, Arkansas.

What is the average humidity in September in Cullendale?

The average relative humidity in September in Cullendale, Arkansas, is 71%.

What is the driest month in Cullendale?

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in Cullendale in September?

In Cullendale, Arkansas, in September, during 11.5 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Cullendale?

In Cullendale, Arkansas, snow does not fall in April through October.

What is the average length of the day in September in Cullendale?

In September, the average day length in Cullendale, Arkansas, is 12h and 22min.

What time are sunrise and sunset in September in Cullendale?

In September, on the first day of the month, sunrise is at 6:45 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:56 pm CDT.

How long on average sun shines in September in Cullendale?

In Cullendale, the average sunshine duration in September is 9.6h.

How high is the UV index in September in Cullendale?

The average daily maximum UV index in September in Cullendale, Arkansas, is 6. A UV Index reading of 6 to 7 represents a high 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
Cullendale, AR

Average temperature in September - Cullendale, AR
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).

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Average pressure in September
Cullendale, AR

Average pressure in September - Cullendale, AR
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Cullendale, AR

Average wind speed in September - Cullendale, AR
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Cullendale, AR

Average humidity in September - Cullendale, AR
  • Average humidity in September: 71%

The months with the highest relative humidity are February, March and December (80%).
The months with the lowest relative humidity are July, August, September and October (71%).

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Average rainfall in September
Cullendale, AR

Average rainfall in September - Cullendale, AR
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is April (4.88").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in September
Cullendale, AR

Average rainfall days in September - Cullendale, AR
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is October (9.5 days).

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Average snowfall in September
Cullendale, AR

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

The month with the highest snowfall is February (0.59").
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
Cullendale, AR

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

The month with the highest number of snowfall days is February (1.7 days).
The 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
Cullendale, AR

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Cullendale, AR

Average sunshine days in September - Cullendale, AR
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in September
Cullendale, AR

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

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

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Average cloud cover in September
Cullendale, AR

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

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 28).

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Average visibility in September
Cullendale, AR

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

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

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Cullendale, Arkansas, USA

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