September weather forecast
Iron Springs, AR

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Weather in September

The first month of the autumn, September, is still a tropical month in Iron Springs, Arkansas, with an average temperature varying between 65.7°F (18.7°C) and 86.9°F (30.5°C).

Temperature

With the arrival of September, Iron Springs experiences a modest decline in average high-temperatures, transitioning from a tropical 93.2°F (34°C) in August to a still hot 86.9°F (30.5°C). In Iron Springs, September is marked by an average low-temperature of 65.7°F (18.7°C).

Heat index

The average heat index in September is calculated to be a sweltering 98.6°F (37°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In September, the average relative humidity is 71%.

Rainfall

The months with the least rainfall in Iron Springs are September and November Rain falls for 9.2 days and accumulates 0.87" (22mm) of rain.

Snowfall

January through March and September are months with snowfall. September is the first month it typically snows in Iron Springs. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Iron Springs, during the entire year, snow falls for 3.1 days and aggregates up to 0.43" (11mm) of snow.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September in Iron Springs, sunrise is at 6:47 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:58 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

How hot is it in Iron Springs in September?

In September, the average high-temperature and low-temperature are 86.9°F (30.5°C) and 65.7°F (18.7°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 98.6°F (37°C).

What is the average humidity in September in Iron Springs?

In Iron Springs, the average relative humidity in September is 71%.

What is the driest month in Iron Springs?

September and November are months with the least rain in Iron Springs when the rain falls for 9.2 days and typically aggregates up to 0.87" (22mm) of rain.

How much does it rain in Iron Springs in September?

In September, in Iron Springs, Arkansas, the rain falls for 9.2 days. Throughout September, 0.87" (22mm) of precipitation is accumulated.

When does it start to snow in Iron Springs?

September is the first month it typically snows in Iron Springs. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Iron Springs?

In September, the average day length in Iron Springs is 12h and 22min.

What time are sunrise and sunset in September in Iron Springs?

In September, on the first day of the month, sunrise is at 6:47 am and sunset at 7:38 pm. On the last day of the month, in Iron Springs, Arkansas, sunrise is at 7:07 am and sunset at 6:58 pm CDT.

How many hours of sunshine does Iron Springs have in September?

In September, the average sunshine duration in Iron Springs, Arkansas, is 9.5h.

What is the UV index intensity in September in Iron Springs?

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Iron Springs, AR

Average temperature in September - Iron Springs, AR
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in September
Iron Springs, AR

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Iron Springs, AR

Average wind speed in September - Iron Springs, AR
  • Average wind speed in September: 5mph

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
Iron Springs, AR

Average humidity in September - Iron Springs, AR
  • Average humidity in September: 71%

The months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Iron Springs, AR

Average rainfall in September - Iron Springs, AR
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is April (1.97").
The driest months (with the least rainfall) are September and November (0.87").

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Average rainfall days in September
Iron Springs, AR

Average rainfall days in September - Iron Springs, AR
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is July (13.1 days).
The month with the least rainy days is October (7.8 days).

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Average snowfall in September
Iron Springs, AR

Average snowfall in September - Iron Springs, AR
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, October, November and December (0").

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Average snowfall days in September
Iron Springs, AR

Average snowfall days in September - Iron Springs, AR
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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Average daylight in September /
Average sunshine in September
Iron Springs, AR

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in September
Iron Springs, AR

Average sunshine days in September - Iron Springs, AR
  • Average sunshine days in September: 17 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is February (15.2 days).

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Average UV index in September
Iron Springs, AR

Average UV index in September - Iron Springs, AR
  • Average UV index in September: 6

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
Iron Springs, AR

Average cloud cover in September - Iron Springs, AR
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, July, August and September (Cloud cover 28).

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Average visibility in September
Iron Springs, AR

Average visibility in September - Iron Springs, AR
  • Average visibility in September: 6mi

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

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Iron Springs, Arkansas, USA

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