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
Shannon records an average high-temperature of a moderately hot 82.8°F (28.2°C) in September, maintaining a close correlation with August's 87.4°F (30.8°C). An average temperature of 65.5°F (18.6°C) is recorded during the nights in September.Heat index
September's heat index is appraised at a tropical 89.6°F (32°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
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. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The months with the highest humidity are May, August and September, with an average relative humidity of 77%.Rainfall
In September, in Shannon, the rain falls for 14.5 days. Throughout September, 3.11" (79mm) of precipitation is accumulated. Throughout the year, in Shannon, there are 165.4 rainfall days, and 33.23" (844mm) of precipitation is accumulated.Snowfall
In Shannon, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:01 pm EDT.
Sunshine
In September, the average sunshine in Shannon is 9.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Shannon in September?
What is the most humid month in Shannon?
What is the average humidity in September in Shannon?
How many days does it rain in September in Shannon?
When it does not snow in Shannon?
How many hours of daylight does Shannon have in September?
When are sunrise and sunset in September in Shannon?
How long on average sun shines in September in Shannon?
What is the UV index reading in September in Shannon?
Average temperature in September
Shannon, NC
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.5°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 (35.4°F).
Average pressure in September
Shannon, NC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Shannon, NC
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Shannon, NC
- Average humidity in September: 77%
The months with the highest relative humidity are May, August and September (77%).
The month with the lowest relative humidity is November (72%).
Average rainfall in September
Shannon, NC
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in September
Shannon, NC
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Shannon, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Shannon, NC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.9 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, NC
- 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 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Shannon, NC
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Shannon, NC
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Shannon, NC
- Average cloud cover in September: 34
The months with the most cloud cover are February and March (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 30).
Average visibility in September
Shannon, NC
- 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).
Shannon, North Carolina, USA
Weather forecast for your location
2. Allow the app to use your location