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 commencement of September records an average high-temperature of a still warm 79.7°F (26.5°C), barely varying from August's 82.9°F (28.3°C). Smyrna's September nights demonstrate minimal variation from the daytime temperatures, with an average of 74.3°F (23.5°C).Humidity
In Smyrna, the average relative humidity in September is 77%.Rainfall
In Smyrna, in September, it is raining for 17.5 days, with typically 4.49" (114mm) of accumulated precipitation. Throughout the year, there are 181.4 rainfall days, and 34.76" (883mm) of precipitation is accumulated.Snowfall
In Smyrna, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:32 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:51 pm EDT.
Sunshine
In September, the average sunshine in Smyrna is 9.6h.UV index
In Smyrna, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Smyrna have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Smyrna, NC
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 74.3°F
The month with the highest average low temperature is July (78.3°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in September
Smyrna, NC
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is December (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Smyrna, NC
- Average wind speed in September: 11.6mph
The windiest months (with the highest average wind speed) are February and March (14mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).
Average humidity in September
Smyrna, NC
- Average humidity in September: 77%
The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are February, March and October (74%).
Average rainfall in September
Smyrna, NC
- Average rainfall in September: 4.49"
The wettest month (with the highest rainfall) is August (4.84").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in September
Smyrna, NC
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is August (22.3 days).
The months with the least rainy days are February and November (11.1 days).
Average snowfall in September
Smyrna, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Smyrna, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Smyrna, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Smyrna, NC
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in September
Smyrna, NC
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Smyrna, NC
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Smyrna, 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).
Smyrna, North Carolina, USA
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