September weather forecast and climate
Ellendale, DE

Weather in September

September, the first month of the autumn, in Ellendale, is also a moderately hot month, with average temperature ranging between max 76.1°F (24.5°C) and min 64°F (17.8°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 81.5°F (27.5°C) in August, to a still moderately hot 76.1°F (24.5°C). In September, in Ellendale, Delaware, the average low-temperature is 64°F (17.8°C).

Humidity

In September, the average relative humidity in Ellendale, Delaware, is 79%.

Rainfall

In September, the rain falls for 13.5 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. Throughout the year, in Ellendale, there are 152.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.

Snowfall

In Ellendale, Delaware, snow does not fall in April, June through October.

Daylight

In September, the average length of the day in Ellendale is 12.4h.

Sunshine

In Ellendale, the average sunshine in September is 9.4h.

UV index

The average daily maximum UV index in Ellendale is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Ellendale?

In Ellendale, in September, the average high-temperature is 76.1°F (24.5°C), and the average low-temperature is 64°F (17.8°C).

What is the average humidity in September in Ellendale?

In September, the average relative humidity in Ellendale, Delaware, is 79%.

How many days does it rain in September in Ellendale?

In Ellendale, Delaware, in September, it is raining for 13.5 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow in Ellendale?

In Ellendale snow does not fall in April, June through October.

What is the average length of the day in September in Ellendale?

In Ellendale, Delaware, the average length of the day in September is 12.4h.

How many hours of sunshine does Ellendale have in September?

The average sunshine in September in Ellendale, Delaware, is 9.4h.

What is the UV index intensity in September in Ellendale?

In September, the average daily maximum UV index in Ellendale is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in September
Ellendale, DE

Average temperature in September - Ellendale, DE
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in September
Ellendale, DE

Average pressure in September - Ellendale, DE
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in September
Ellendale, DE

Average wind speed in September - Ellendale, DE
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in September
Ellendale, DE

Average humidity in September - Ellendale, DE
  • Average humidity in September: 79%

The month with the highest relative humidity is May (80%).
Months with the lowest relative humidity are January and November (74%).

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Average rainfall in September
Ellendale, DE

Average rainfall in September - Ellendale, DE
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days in September
Ellendale, DE

Average rainfall days in September - Ellendale, DE
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in September
Ellendale, DE

Average snowfall in September - Ellendale, DE
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.22").
Months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in September
Ellendale, DE

Average snowfall days in September - Ellendale, DE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.3 days).
Months with the least snowfall days are April, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Ellendale, DE

Average daylight in September / Average sunshine in September - Ellendale, DE
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.4h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days in September
Ellendale, DE

Average sunshine days in September - Ellendale, DE
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in September
Ellendale, DE

Average UV index in September - Ellendale, DE
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Ellendale, DE

Average cloud cover in September - Ellendale, DE
  • Average cloud cover in September: 32

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in September
Ellendale, DE

Average visibility in September - Ellendale, DE
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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