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 onset of September entails a subtle temperature shift, as the average high-temperature eases from a hot 86.9°F (30.5°C) in August to a moderately hot 81.5°F (27.5°C). The nighttime temperature, during September, averages of 65.3°F (18.5°C).Heat index
In September, the average heat index is computed to be a tropical 87.8°F (31°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Understand that the heat index values take into account shaded locations and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 79%.Rainfall
In Dover, in September, during 14.1 rainfall days, 3.74" (95mm) of precipitation is typically accumulated. Throughout the year, in Dover, there are 172 rainfall days, and 35.2" (894mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall in Dover.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:42 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:54 pm EDT.
Sunshine
The average sunshine in September in Dover is 9.1h.UV index
The average daily maximum UV index in September in Dover is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What is the usual temperature for Dover in September?
What are the most humid months in Dover?
What is the average humidity in September in Dover?
How much does it rain in Dover in September?
When it does not snow in Dover?
How many hours of daylight does Dover have in September?
What time are sunrise and sunset in September in Dover?
How long on average sun shines in September in Dover?
What is the UV index reading in September in Dover?
Average temperature in September
Dover, NC
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Dover, NC
- Average pressure in September: 30.02"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
Dover, NC
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Dover, NC
- Average humidity in September: 79%
The months with the highest relative humidity are August and September (79%).
The months with the lowest relative humidity are January and March (74%).
Average rainfall in September
Dover, NC
- Average rainfall in September: 3.74"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in September
Dover, NC
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10 days).
Average snowfall in September
Dover, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Dover, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Dover, 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 48min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Dover, NC
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Dover, NC
- Average UV index in September: 5
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
Dover, NC
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Dover, NC
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Dover, North Carolina, USA
Weather forecast for your location
2. Allow the app to use your location
