September weather forecastCooleemee, NC
September
Weather in September
September, the first month of the autumn in Cooleemee, is also a moderately hot month, with an average temperature varying between 81.7°F (27.6°C) and 61.7°F (16.5°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a hot 87.8°F (31°C) to a moderately hot 81.7°F (27.6°C). Throughout September, Cooleemee records an average temperature of 61.7°F (16.5°C) at night.Heat index
For September, the heat index is evaluated at a tropical 86°F (30°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Note that heat index values are valued for light wind and location in the shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In September, the average relative humidity is 74%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. In Cooleemee, during the entire year, the rain falls for 157.9 days and collects up to 30.83" (783mm) of precipitation.Snowfall
In Cooleemee, snow does not fall in April through October.Daylight
The average length of the day in September in Cooleemee is 12h and 23min.On the first day of September, sunrise is at 6:54 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:06 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cooleemee, NC
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Cooleemee, NC
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Cooleemee, NC
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Cooleemee, NC
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Cooleemee, NC
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is October (2.01").
Average rainfall days in September
Cooleemee, NC
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Cooleemee, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cooleemee, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Cooleemee, 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: 8h and 36min
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 24min).
Average sunshine days in September
Cooleemee, NC
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Cooleemee, NC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Cooleemee, NC
- Average cloud cover in September: 35
The months with the most cloud cover are February, March and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Cooleemee, 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).
