September weather forecastCumnock, NC
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Cumnock, North Carolina, with an average temperature fluctuating between 64°F (17.8°C) and 82.6°F (28.1°C).Temperature
As August makes way for September, Cumnock's average high-temperature eases from a tropical 88°F (31.1°C) to a warm 82.6°F (28.1°C). During September, Cumnock observes a consistent average nighttime temperature of 64°F (17.8°C).Heat index
September's average heat index is computed to be a tropical 89.6°F (32°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In Cumnock, North Carolina, the average relative humidity in September is 75%.Rainfall
In Cumnock, during September, the rain falls for 12.6 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 151.7 rainfall days, and 28.74" (730mm) of precipitation is accumulated.Snowfall
In Cumnock, 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 September, sunrise is at 6:49 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm EDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In Cumnock, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cumnock, NC
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Cumnock, NC
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Cumnock, NC
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Cumnock, NC
- Average humidity in September: 75%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Cumnock, NC
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is October (1.81").
Average rainfall days in September
Cumnock, NC
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Cumnock, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cumnock, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 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
Cumnock, 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 48min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Cumnock, NC
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Cumnock, NC
- 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 and December (UV index 2).
Average cloud cover in September
Cumnock, NC
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Cumnock, 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).





