May weather forecast
Selbyville, DE

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Weather in May

Selbyville greets May with rising temperatures and an increased — but not yet dominating — humidity. The weather is warmer, with bright, sunny days stretching to as long as 14.3 hours of daylight. A quick temperature rise and resultant shift in weather patterns lead to a disproportionally large amount of rainfall. May showers, while sudden and copious, bring forth a profusion of flora, transforming Selbyville into a green paradise. As May nears its conclusion, the climate is paving the way for the approaching summer months.

Temperature

May's arrival coincides with a subtle temperature rise, moving from April's moderate 57.4°F to a comfortable 66.2°F. Night temperatures during May experience a slight downturn, averaging a mild 58.5°F.

Humidity

With an average relative humidity of 82%, May is the most humid month in Selbyville.

Rainfall

In Selbyville, in May, during 13.9 rainfall days, 2.2" of precipitation is typically accumulated. Throughout the year, in Selbyville, there are 144.6 rainfall days, and 25.51" of precipitation is accumulated.

Snowfall

In Selbyville, snow does not fall in April through October.

Daylight

In Selbyville, the average length of the day in May is 14h and 17min.
On the first day of May in Selbyville, sunrise is at 6:03 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:18 pm EDT.

Sunshine

In May, the average sunshine is 9.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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FAQ

What are the temperatures in Selbyville in May?

In Selbyville, in May, the average high-temperature is 66.2°F, and the average low-temperature is 58.5°F.

What is the most humid month in Selbyville?

The most humid month is May, with an average relative humidity of 82%.

What is the average humidity in May in Selbyville?

In Selbyville, Delaware, the average relative humidity in May is 82%.

How many days does it rain in May in Selbyville?

In Selbyville, Delaware, in May, it is raining for 13.9 days, with typically 2.2" of accumulated precipitation.

When it does not snow in Selbyville?

In Selbyville, snow does not fall in April through October.

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

The average day length in May in Selbyville is 14h and 17min.

When is the sunrise / sunset in May in Selbyville?

On the first day of May in Selbyville, sunrise is at 6:03 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:18 pm EDT.

How long on average sun shines in May in Selbyville?

The average sunshine duration in May in Selbyville, Delaware, is 9.2h.

What are the months with the highest UV index in Selbyville?

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

How high is the UV index in May in Selbyville?

In May, the average daily maximum UV index in Selbyville, Delaware, is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Selbyville, DE

Average temperature in May - Selbyville, DE
  • Average high temperature in May: 66.2°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 May: 58.5°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).

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Average pressure in May
Selbyville, DE

Average pressure in May - Selbyville, DE
  • Average pressure in May: 30.02"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).

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Average wind speed in May
Selbyville, DE

Average wind speed in May - Selbyville, DE
  • Average wind speed in May: 10.7mph

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).

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Average humidity in May
Selbyville, DE

Average humidity in May - Selbyville, DE
  • Average humidity in May: 82%

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

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Average rainfall in May
Selbyville, DE

Average rainfall in May - Selbyville, DE
  • Average rainfall in May: 2.2"

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

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Average rainfall days in May
Selbyville, DE

Average rainfall days in May - Selbyville, DE
  • Average rainfall days in May: 13.9 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).

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Average snowfall in May
Selbyville, DE

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

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

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Average snowfall days in May
Selbyville, DE

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

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

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Average daylight in May /
Average sunshine in May
Selbyville, DE

Average daylight in May / Average sunshine in May - Selbyville, DE
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in May
Selbyville, DE

Average sunshine days in May - Selbyville, DE
  • Average sunshine days in May: 14.5 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).

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Average UV index in May
Selbyville, DE

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

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).

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Average cloud cover in May
Selbyville, DE

Average cloud cover in May - Selbyville, DE
  • Average cloud cover in May: 39

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

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Average visibility in May
Selbyville, DE

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

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Selbyville, Delaware, USA

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