September weather forecastMountainburg, AR
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mountainburg, Arkansas, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 84.7°F (29.3°C).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a tropical 91°F (32.8°C) in August to a warm 84.7°F (29.3°C). Throughout the September nights, Mountainburg encounters a low-temperature of 63.3°F (17.4°C).Heat index
September's average heat index is estimated at a tropical 93.2°F (34°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In September, the average relative humidity is 71%.Rainfall
In September, in Mountainburg, the rain falls for 11.7 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. In Mountainburg, Arkansas, during the entire year, the rain falls for 145.7 days and collects up to 35.79" (909mm) of precipitation.Snowfall
April through October are months without snowfall in Mountainburg.Daylight
The average length of the day in September in Mountainburg, Arkansas, 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 Mountainburg, sunrise is at 7:11 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September in Mountainburg, Arkansas, 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 average person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mountainburg, AR
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Mountainburg, 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
Mountainburg, AR
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Mountainburg, AR
- Average humidity in September: 71%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in September
Mountainburg, AR
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in September
Mountainburg, AR
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in September
Mountainburg, AR
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Mountainburg, 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
Mountainburg, 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 months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Mountainburg, AR
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Mountainburg, AR
- Average UV index in September: 5
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
Mountainburg, AR
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Mountainburg, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
