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
Dunbar registers an average high-temperature of a moderately hot 81.3°F (27.4°C) at the commencement of September, closely related to the preceding month. In the month of September, Dunbar experiences an average low-temperature of 64.2°F (17.9°C).Heat index
The average heat index in September is evaluated at a tropical 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. 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 a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
The months with the highest humidity are May, August and September, with an average relative humidity of 78%.Rainfall
In Dunbar, in September, during 13.5 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, there are 163.2 rainfall days, and 32.95" (837mm) of precipitation is accumulated.Snowfall
In Dunbar, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
In Dunbar, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 5 during September leads to these advisories:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What are the most humid months?
What is the average humidity in September in Dunbar?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Dunbar have in September?
When is the sunrise / sunset in September in Dunbar?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Dunbar, NC
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in September
Dunbar, NC
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Dunbar, NC
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Dunbar, NC
- Average humidity in September: 78%
The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in September
Dunbar, NC
- Average rainfall in September: 2.99"
The wettest month (with the highest rainfall) is August (3.5").
The driest month (with the least rainfall) is January (2.2").
Average rainfall days in September
Dunbar, NC
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Dunbar, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Dunbar, 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
Dunbar, 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 48min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Dunbar, NC
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Dunbar, NC
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Dunbar, NC
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Dunbar, 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).
Dunbar, North Carolina, USA
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