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
The arrival of September records an average high-temperature of a still warm 79.7°F (26.5°C), closely related to the 84.4°F (29.1°C) observed in August. Throughout the September nights, South Mills encounters a low-temperature of 68.2°F (20.1°C).Humidity
In South Mills, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 14.5 days. Throughout September, 3.27" (83mm) of precipitation is accumulated. Throughout the year, there are 165 rainfall days, and 29.06" (738mm) of precipitation is accumulated.Snowfall
In South Mills, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:32 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:49 pm EDT.
Sunshine
In South Mills, the average sunshine in September is 9.5h.UV index
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 exposure to the Sun's UV rays for the average person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September in South Mills?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September in South Mills?
How many hours of sunshine does South Mills have in September?
What is the UV index reading in September?
Average temperature in September
South Mills, NC
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 68.2°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in September
South Mills, NC
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
South Mills, NC
- Average wind speed in September: 8.1mph
The windiest months (with the highest average wind speed) are March and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
South Mills, NC
- Average humidity in September: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
South Mills, NC
- Average rainfall in September: 3.27"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is November (1.57").
Average rainfall days in September
South Mills, NC
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is August (18.4 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
South Mills, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
South Mills, NC
- 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, September and October (0 days).
Average daylight in September /
Average sunshine in September
South Mills, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
South Mills, NC
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is August (9.4 days).
Average UV index in September
South Mills, NC
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
South Mills, NC
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in September
South Mills, 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).
South Mills, North Carolina, USA
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