September weather forecast
Story, AR

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Weather in September

The first month of the autumn, September, is still a warm month in Story, Arkansas, with an average temperature ranging between min 63°F (17.2°C) and max 83.7°F (28.7°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's hot 90.1°F (32.3°C) to a warm 83.7°F (28.7°C). During the month of September, an average temperature of 63°F (17.2°C) is noted during the nights.

Heat index

The heat index for September is estimated at a hot 91.4°F (33°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. 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 'feels like' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. 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 months with the lowest humidity are July through October, with an average relative humidity of 73%.

Rainfall

In September, the rain falls for 13.2 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. In Story, during the entire year, the rain falls for 160.2 days and collects up to 38.86" (987mm) of precipitation.

Snowfall

In Story, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 6:47 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:59 pm CDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

In September, in Story, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 63°F (17.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 91.4°F (33°C).

What are the least humid months?

July through October, with an average relative humidity of 73%, are the least humid months in Story.

What is the average humidity in September?

In Story, the average relative humidity in September is 73%.

How many days does it rain in September?

In Story, in September, during 13.2 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Story have in September?

In September, the average day length is 12h and 23min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:47 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:59 pm CDT.

How many hours of sunshine does Story have in September?

In Story, the average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Story, AR

Average temperature in September - Story, AR
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in September
Story, AR

Average pressure in September - Story, AR
  • Average pressure in September: 30"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).

Average wind speed in September
Story, AR

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

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Story, AR

Average humidity in September - Story, AR
  • Average humidity in September: 73%

The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July, August, September and October (73%).

Average rainfall in September
Story, AR

Average rainfall in September - Story, AR
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is May (4.76").
The driest month (with the least rainfall) is January (2.32").

Average rainfall days in September
Story, AR

Average rainfall days in September - Story, AR
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is January (9.6 days).

Average snowfall in September
Story, AR

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

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Story, AR

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

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Story, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Story, AR

Average sunshine days in September - Story, AR
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is January (19 days).
The month with the least sunshine days is August (10.5 days).

Average UV index in September
Story, AR

Average UV index in September - Story, AR
  • Average UV index in September: 5

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

Average cloud cover in September
Story, AR

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

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 30).

Average visibility in September
Story, AR

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

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

Story, Arkansas, USA

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