Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from a hot 89.1°F (31.7°C) in August to a moderately hot 81.7°F (27.6°C). Summers experiences an average temperature drop to a refreshing 61.7°F (16.5°C) during September nights.Heat index
In September, the average heat index is computed to be a tropical 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in September is 73%.Rainfall
In Summers, in September, it is raining for 12.7 days, with typically 2.52" (64mm) of accumulated precipitation. In Summers, during the entire year, the rain falls for 146.8 days and collects up to 33.11" (841mm) of precipitation.Snowfall
In Summers, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during September translates into the following guidance:
Act with care - The need to guard against sun damage is communicated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Summers have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Summers, AR
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in September
Summers, 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).
Average wind speed in September
Summers, AR
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Summers, AR
- Average humidity in September: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Summers, AR
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in September
Summers, AR
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and November (8 days).
Average snowfall in September
Summers, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Summers, AR
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Summers, 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 48min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Summers, AR
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Summers, AR
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Summers, AR
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Summers, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Summers, Arkansas, USA
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