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 advent of September brings an average high-temperature of a moderately hot 83.5°F (28.6°C), exhibiting minor difference from the previous month. Westor's average low-temperature for the month of September records at a refreshing 65.7°F (18.7°C).Heat index
During September, the heat index is calculated to be a hot 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
The average relative humidity in September is 74%.Rainfall
In September, the rain falls for 12.9 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. In Westor, Arkansas, during the entire year, the rain falls for 164.8 days and collects up to 41.73" (1060mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Westor, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:36 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:48 pm CDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Westor, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in September translates into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Westor have in September?
How high is the UV index in September?
Average temperature in September
Westor, AR
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in September
Westor, 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
Westor, AR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Westor, AR
- Average humidity in September: 74%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Westor, AR
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is April (4.76").
The driest month (with the least rainfall) is January (2.4").
Average rainfall days in September
Westor, AR
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Westor, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Westor, 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 and September (0 days).
Average daylight in September /
Average sunshine in September
Westor, 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 54min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Westor, AR
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Westor, AR
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Westor, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Westor, 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).
Westor, Arkansas, USA
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