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
The start of September signals a gentle decrease in the average high-temperature, transitioning from a tropical 92.8°F (33.8°C) in August to a still hot 86.7°F (30.4°C). Nighttime temperatures exhibit a substantial dip from daytime highs during September, averaging at an enjoyable 64.9°F (18.3°C).Heat index
September's mean heat index is evaluated at a very hot 96.8°F (36°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
The months with the lowest humidity in Witherspoon 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 10.6 days and typically collects 1.14" (29mm) of precipitation.Snowfall
In Witherspoon, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:37 pm. On the last day of September, in Witherspoon, Arkansas, sunrise is at 7:06 am and sunset at 6:57 pm CDT.
Sunshine
In Witherspoon, Arkansas, the average sunshine in September is 9.5h.UV index
In Witherspoon, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
How hot is September in Witherspoon?
What are the least humid months in Witherspoon?
What is the average humidity in September in Witherspoon?
What is the driest month in Witherspoon?
How many days does it rain in September in Witherspoon?
When it does not snow in Witherspoon?
How many hours of daylight does Witherspoon have in September?
When is the sunrise / sunset in September in Witherspoon?
How long on average sun shines in September in Witherspoon?
How high is the UV index in September in Witherspoon?
Average temperature in September
Witherspoon, AR
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Witherspoon, 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
Witherspoon, AR
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Witherspoon, 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%).
Average rainfall in September
Witherspoon, AR
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in September
Witherspoon, AR
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is August (14.3 days).
The month with the least rainy days is October (7.9 days).
Average snowfall in September
Witherspoon, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Witherspoon, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 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
Witherspoon, 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 30min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Witherspoon, AR
- Average sunshine days in September: 17 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is August (13.8 days).
Average UV index in September
Witherspoon, 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).
Average cloud cover in September
Witherspoon, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Witherspoon, AR
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, May and December (5mi).
Witherspoon, Arkansas, USA
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