September weather forecastRex, NC
September
Weather in September
September, the first month of the autumn in Rex, is still a warm month, with an average temperature fluctuating between 65.7°F (18.7°C) and 82.6°F (28.1°C).Temperature
As Rex steps into September, the average high-temperature is measured at a moderately hot 82.6°F (28.1°C), displaying minor differences from August's 87.4°F (30.8°C). During September, the average low-temperature is recorded at a comfortable 65.7°F (18.7°C).Heat index
In September, the heat index is appraised at a hot 89.6°F (32°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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
May, August and September, with an average relative humidity of 77%, are the most humid months.Rainfall
In September, the rain falls for 13.1 days. Throughout September, 3.03" (77mm) of precipitation is accumulated. In Rex, during the entire year, the rain falls for 161.7 days and collects up to 27.6" (701mm) of precipitation.Snowfall
In Rex, snow does not fall in April through October.Daylight
The average length of the day in September 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 7:10 am and sunset at 7:01 pm EDT.
Sunshine
In Rex, the average sunshine in September is 9.1h.UV index
In Rex, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Deter overexposure. Protecting against the sun's effects is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rex, NC
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.7°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 (35.6°F).
Average pressure in September
Rex, 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
Rex, NC
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Rex, NC
- Average humidity in September: 77%
The months with the highest relative humidity are May, August and September (77%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in September
Rex, NC
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Rex, NC
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is October (9.7 days).
Average snowfall in September
Rex, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Rex, NC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (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
Rex, NC
- Average daylight in September: 12h and 24min
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 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Rex, NC
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Rex, 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
Rex, NC
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are June, July and October (Cloud cover 31).
Average visibility in September
Rex, 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).





