September weather forecastMarked Tree, AR
September
Weather in September
The first month of the autumn, September, is still a warm month in Marked Tree, Arkansas, with an average temperature varying between 64°F (17.8°C) and 82.4°F (28°C).Temperature
As Marked Tree, Arkansas, transitions from August to September, the average high-temperatures adjust to a moderately hot 82.4°F (28°C), nearly the same as the previous 87.3°F (30.7°C). An average low-temperature of 64°F (17.8°C) is recorded in the month of September.Heat index
For September, the heat index is estimated at a tropical 87.8°F (31°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Always consider that heat index estimations are for light winds and places in the shade. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Marked Tree, Arkansas, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall in Marked Tree is September, when the rain falls for 12.5 days and typically collects 2.44" (62mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Marked Tree, sunrise is at 6:34 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:46 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
In September, the average daily maximum UV index in Marked Tree is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Marked Tree, AR
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.2°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in September
Marked Tree, 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 (29.94"Hg).
Average wind speed in September
Marked Tree, AR
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Marked Tree, AR
- Average humidity in September: 74%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Marked Tree, AR
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days in September
Marked Tree, AR
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.4 days).
The months with the least rainy days are October and November (9.5 days).
Average snowfall in September
Marked Tree, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Marked Tree, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 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
Marked Tree, AR
- Average daylight in September: 12h and 24min
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 30min
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 42min).
Average sunshine days in September
Marked Tree, AR
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Marked Tree, AR
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Marked Tree, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Marked Tree, 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).
