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 sea temperature 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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 83.5°F (28.6°C) to a still warm 76.5°F (24.7°C). Throughout the month of September, Edgemoor reports a steady low-temperature average of 60.8°F (16°C).Humidity
In September, the average relative humidity is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.61" (41mm) of precipitation.Snowfall
June through October are months without snowfall.Ocean temperature
In September, the average ocean temperature is 71.4°F (21.9°C).Note: For most individuals, swimming in 71.4°F (21.9°C) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 69.8°F (21°C).
Daylight
The average length of the day in September in Edgemoor, Delaware, is 12h and 26min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:45 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Warning! Sand and water reflections boost the intensity of UV exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
How cold is the water in September in Edgemoor?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Edgemoor have in September?
What is the UV index reading in September?
Average temperature in September
Edgemoor, DE
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in September
Edgemoor, DE
- Average pressure in September: 30.05"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
Edgemoor, DE
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Edgemoor, DE
- Average humidity in September: 77%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Edgemoor, DE
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Edgemoor, DE
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Edgemoor, DE
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Edgemoor, DE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in September
Edgemoor, DE
- Average sea temperature in September: 71.4°F
The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).
Average daylight in September /
Average sunshine in September
Edgemoor, DE
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Edgemoor, DE
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Edgemoor, 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, February, November and December (UV index 2).
Average cloud cover in September
Edgemoor, DE
- Average cloud cover in September: 36
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Edgemoor, 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).
Edgemoor, Delaware, USA
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