September weather forecastShannon Tank, AR
September
Weather in September
September, the first month of the autumn in Shannon Tank, is also a moderately hot month, with an average temperature ranging between min 66.4°F (19.1°C) and max 85.6°F (29.8°C).Temperature
The shift to September signals an average high-temperature of a warm 85.6°F (29.8°C), subtly varied from August's 89.8°F (32.1°C). September brings with it a nighttime average temperature of 66.4°F (19.1°C) in Shannon Tank, Arkansas.Heat index
In September, the heat index is computed to be a torrid 95°F (35°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In Shannon Tank, the average relative humidity in September is 71%.Rainfall
The month with the least rainfall in Shannon Tank is September, when the rain falls for 11.3 days and typically collects 1.89" (48mm) of precipitation.Snowfall
April through November are months without snowfall in Shannon Tank.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:32 pm. On the last day of September, in Shannon Tank, sunrise is at 7:01 am and sunset at 6:52 pm CDT.
Sunshine
In September, the average sunshine in Shannon Tank is 9.8h.UV index
In Shannon Tank, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shannon Tank, AR
- Average high temperature in September: 85.6°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50°F).
- Average low temperature in September: 66.4°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in September
Shannon Tank, AR
- Average pressure in September: 30"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
Shannon Tank, AR
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Shannon Tank, AR
- Average humidity in September: 71%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Shannon Tank, AR
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Shannon Tank, AR
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (9 days).
Average snowfall in September
Shannon Tank, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Shannon Tank, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Shannon Tank, AR
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Shannon Tank, AR
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in September
Shannon Tank, AR
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Shannon Tank, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Shannon Tank, 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).
