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
September indicates a minor shift in the average high-temperature, from August's tropical 88.3°F (31.3°C) to a warm 81.1°F (27.3°C). An average nighttime temperature of 61.2°F (16.2°C) is observed during September.Heat index
During September, the heat index is evaluated at a tropical 86°F (30°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Note that heat index values are valued for light wind and location in the shade. 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 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 hold particular significance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Winfrey, in September, during 10.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 120.9 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
In Winfrey, 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 6:49 am and sunset at 7:43 pm. On the last day of September, in Winfrey, sunrise is at 7:11 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Winfrey, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Winfrey?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Winfrey have in September?
What is the UV index reading in September?
Average temperature in September
Winfrey, AR
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (44.4°F).
- Average low temperature in September: 61.2°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Winfrey, 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
Winfrey, AR
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in September
Winfrey, AR
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August and October (72%).
Average rainfall in September
Winfrey, AR
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in September
Winfrey, AR
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in September
Winfrey, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Winfrey, AR
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Winfrey, 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 48min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Winfrey, AR
- Average sunshine days in September: 17.3 days
The months with the most sunshine days are January and December (22 days).
The month with the least sunshine days is April (14.3 days).
Average UV index in September
Winfrey, AR
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Winfrey, AR
- Average cloud cover in September: 28
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 24).
Average visibility in September
Winfrey, 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).
Winfrey, Arkansas, USA
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