September weather forecastYellville, AR
September
Weather in September
September, the first month of the autumn in Yellville, is still a warm month, with temperature in the range of an average high of 82.4°F (28°C) and an average low of 60.1°F (15.6°C).Temperature
September indicates a minor shift in the average high-temperature, from August's hot 89.8°F (32.1°C) to a moderately hot 82.4°F (28°C). Yellville's September nights bring a significant temperature shift, averaging at a moderate 60.1°F (15.6°C).Heat index
During September, the heat index is computed to be a tropical 87.8°F (31°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Bear in mind that the heat index values are determined for shaded areas and light breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
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. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In Yellville, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.81" (46mm) of precipitation.Snowfall
In Yellville, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:55 pm CDT.
Sunshine
In Yellville, the average sunshine in September is 9.3h.UV index
In Yellville, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yellville, AR
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in September
Yellville, AR
- Average pressure in September: 30.02"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
Yellville, AR
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are February and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Yellville, AR
- Average humidity in September: 74%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in September
Yellville, AR
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Yellville, AR
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and December (8 days).
Average snowfall in September
Yellville, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Yellville, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Yellville, AR
- Average daylight in September: 12h and 24min
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 42min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in September
Yellville, AR
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is December (21.4 days).
The months with the least sunshine days are May and August (13.6 days).
Average UV index in September
Yellville, 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
Yellville, AR
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in September
Yellville, AR
- Average visibility in September: 5mi
The months with the highest visibility are January, February, June, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July, August and September (5mi).
