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 brings a minor shift in the average high-temperature, adjusting from a tropical 91.4°F (33°C) in August to a warm 84.2°F (29°C). In September, the recorded average low-temperature is an enjoyable 63.1°F (17.3°C).Heat index
The heat index value for September is estimated at a hot 91.4°F (33°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Natural Dam, the average relative humidity in September is 71%.Rainfall
In Natural Dam, in September, during 12.3 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, there are 149.6 rainfall days, and 36.69" (932mm) of precipitation is accumulated.Snowfall
In Natural Dam, snow does not fall in April through October.Daylight
In Natural Dam, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:02 pm CDT.
Sunshine
In Natural Dam, Arkansas, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake protective steps - Preventing sun damage is advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. 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
How hot is September in Natural Dam?
What is the average humidity in September in Natural Dam?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September in Natural Dam?
When is the sunrise / sunset in September?
How many hours of sunshine does Natural Dam have in September?
What is the UV index reading in September?
Average temperature in September
Natural Dam, AR
- Average high temperature in September: 84.2°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 (47.8°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Natural Dam, 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
Natural Dam, AR
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Natural Dam, 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
Natural Dam, AR
- Average rainfall in September: 3.15"
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
Natural Dam, AR
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Natural Dam, AR
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Natural Dam, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Natural Dam, 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 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
Natural Dam, AR
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Natural Dam, 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
Natural Dam, AR
- Average cloud cover in September: 28
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
Natural Dam, 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).
Natural Dam, Arkansas, USA
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