September weather forecastFelton, DE
September
Weather in September
The month of September introduces Felton to the beauty of Autumn, heralding the onset of the fall season. A drop in rainfall from 3.9" (99mm) to 2.44" (62mm) gives way to a drier climate, while a dip in temperature calls for lightweight layers. Septmber is characterized by its mild climate and the beautiful autumn foliage, a sight to behold. The transition from the heat of the summer to the cooler fall season makes September one of the best months to visit Felton. As this month comes to a close, the cooler weather starts settling in, making way for the chill of October.Temperature
The beginning of September in Felton, Delaware, brings a slight decrease in the average high-temperature, transitioning from 82.2°F (27.9°C) in August to a still moderately hot 76.5°F (24.7°C). Nighttime temperatures consistently average a refreshing 63.1°F (17.3°C) during September.Humidity
The months with the highest humidity in Felton are May, August and September, with an average relative humidity of 79%.Rainfall
In Felton, Delaware, in September, it is raining for 13.6 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, in Felton, there are 167.5 rainfall days, and 35.35" (898mm) of precipitation is accumulated.Snowfall
In Felton, snow does not fall in May through October.Daylight
In September, the average length of the day in Felton is 12h and 26min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:46 pm EDT.
Sunshine
The average sunshine in September in Felton, Delaware, is 9.2h.UV index
The average daily maximum UV index in September in Felton, Delaware, is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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
Felton, DE
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in September
Felton, DE
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Felton, DE
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Felton, DE
- Average humidity in September: 79%
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in September
Felton, DE
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in September
Felton, DE
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall in September
Felton, DE
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Felton, DE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Felton, DE
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Felton, DE
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in September
Felton, DE
- 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 and December (UV index 2).
Average cloud cover in September
Felton, DE
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Felton, DE
- 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).
