September weather forecast
Natural Dam, AR

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Weather in September

September, the first month of the autumn in Natural Dam, is still a warm month, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 63.1°F (17.3°C).

Temperature

A modest decline in the average high-temperature is seen during September, decreasing from a tropical 91.4°F (33°C) in August to a warm 84.2°F (29°C). Natural Dam anticipates an average minimum temperature of 63.1°F (17.3°C) in the month of September.

Heat index

September's mean heat index is evaluated at a tropical 91.4°F (33°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In September, the average relative humidity in Natural Dam is 71%.

Rainfall

In Natural Dam, Arkansas, in September, it is raining for 12.3 days, with typically 3.15" (80mm) of accumulated precipitation. In Natural Dam, during the entire year, the rain falls for 149.6 days and collects up to 36.69" (932mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September in Natural Dam is 12h and 23min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:44 pm. On the last day of September, in Natural Dam, Arkansas, sunrise is at 7:12 am and sunset at 7:02 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: An average UV index of 5 in September transforms into this advice:
Heed the precautions - It is counselled to guard against solar damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

How hot is it in Natural Dam in September?

The high-temperature, in September, in Natural Dam, is 84.2°F (29°C), while the low-temperature averages to 63.1°F (17.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in September in Natural Dam?

In Natural Dam, the average relative humidity in September is 71%.

How much does it rain in Natural Dam in September?

In Natural Dam, in September, during 12.3 rainfall days, 3.15" (80mm) of precipitation is typically accumulated.

When it does not snow in Natural Dam?

April through October are months without snowfall.

What is the average length of the day in September in Natural Dam?

The average day length in September in Natural Dam, Arkansas, is 12h and 23min.

What time are sunrise and sunset in September in Natural Dam?

On the first day of September, sunrise is at 6:50 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:02 pm CDT.

How many hours of sunshine does Natural Dam have in September?

The average sunshine duration in September in Natural Dam is 9.3h.

How high is the UV index in September in Natural Dam?

The average daily maximum UV index in September in Natural Dam, Arkansas, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe 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
Natural Dam, AR

Average temperature in September - Natural Dam, AR
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (47.8°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Natural Dam, AR

Average pressure in September - Natural Dam, 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
Natural Dam, AR

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

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in September
Natural Dam, AR

Average humidity in September - Natural Dam, AR
  • Average humidity in September: 71%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and August (70%).

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Average rainfall in September
Natural Dam, AR

Average rainfall in September - Natural Dam, AR
  • Average rainfall in September: 3.15"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in September
Natural Dam, AR

Average rainfall days in September - Natural Dam, AR
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in September
Natural Dam, AR

Average snowfall in September - Natural Dam, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.75").
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
Natural Dam, AR

Average snowfall days in September - Natural Dam, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.8 days).
The 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
Natural Dam, AR

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Natural Dam, AR

Average sunshine days in September - Natural Dam, AR
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is July (12.4 days).

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Average UV index in September
Natural Dam, AR

Average UV index in September - Natural Dam, AR
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Natural Dam, AR

Average cloud cover in September - Natural Dam, AR
  • Average cloud cover in September: 28

The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Natural Dam, AR

Average visibility in September - Natural Dam, 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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Natural Dam, Arkansas, USA

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