August weather forecast and climate
Selbyville, DE

August, the last month of the summer, in Selbyville, is also a moderately hot month, with average temperature fluctuating between 79.7°F (26.5°C) and 72.7°F (22.6°C).

Temperature

In Selbyville, the average high-temperature in August is almost the same as in July - a still warm 79.7°F (26.5°C). The average low-temperature, in Selbyville, is 72.7°F (22.6°C).

Humidity

In August, the average relative humidity in Selbyville is 78%.

Rainfall

The wettest months are July and August, with an average 2.87" (73mm) of rainfall.

Snowfall

In Selbyville snow does not fall in April through October.

Daylight

In Selbyville, the average length of the day is 13.6h.

Sunshine

In August, the average sunshine in Selbyville, Delaware, is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Selbyville?

The average high-temperature, in August, is 79.7°F (26.5°C), while the average low-temperature is 72.7°F (22.6°C).

What is the average humidity in August in Selbyville?

In August, the average relative humidity in Selbyville, Delaware, is 78%.

How many days does it rain in August in Selbyville?

In Selbyville, during August, the rain falls for 15.1 days and regularly aggregates up to 2.87" (73mm) of precipitation.

What is the wettest month in Selbyville?

Months with the most rainfall in Selbyville, Delaware, are July and August, with an average 2.87" (73mm) of precipitation.

When it does not snow in Selbyville?

April through October are months without snowfall in Selbyville, Delaware.

What is the average length of the day in August in Selbyville?

The average length of the day in August in Selbyville is 13.6h.

How many hours of sunshine does Selbyville have in August?

In Selbyville, Delaware, the average sunshine in August is 10.5h.

What is the month with the highest UV index in Selbyville?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in August in Selbyville?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in August - Selbyville, DE
  • Average high temperature in August: 79.7°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (42.1°F).

  • Average low temperature in August: 72.7°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in August - Selbyville, DE
  • Average pressure in August: 29.98"

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

Average wind speed in August - Selbyville, DE
  • Average wind speed in August: 8.7mph

The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

Average humidity in August - Selbyville, DE
  • Average humidity in August: 78%

The month with the highest relative humidity is May (82%).
Months with the lowest relative humidity are January and November (74%).

Average rainfall in August - Selbyville, DE
  • Average rainfall in August: 2.87"

The wettest months (with the highest rainfall) are July and August (2.87").
The driest month (with the least rainfall) is January (1.5").

Average rainfall days in August - Selbyville, DE
  • Average rainfall days in August: 15.1 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in August - Selbyville, DE
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.87").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August - Selbyville, DE
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (2.6 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August / Average sunshine in August - Selbyville, DE
  • Average daylight in August: 13.6h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in August: 10.5h

The month with the most sunshine is July (Average sunshine: 10.9h).
Months with the least sunshine are February and December (Average sunshine: 5.1).

Average sunshine days in August - Selbyville, DE
  • Average sunshine days in August: 13 days

The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in August - Selbyville, DE
  • Average UV index in August: 6

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).

Average cloud cover in August - Selbyville, DE
  • Average cloud cover in August: 28

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in August - Selbyville, DE
  • Average visibility in August: 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).