May weather forecast
Smyrna, DE

Weather in May

May, the last month of the spring in Smyrna, is a pleasant month, with an average temperature ranging between min 55.9°F (13.3°C) and max 71.2°F (21.8°C).

Temperature

In Smyrna, Delaware, the average high-temperature in May rises from an enjoyable 62.2°F (16.8°C) in April to a pleasant 71.2°F (21.8°C). The average low-temperature, in May, is 55.9°F (13.3°C).

Humidity

With an average relative humidity of 79%, May is the most humid month.

Rainfall

In Smyrna, during May, the rain falls for 18.3 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Smyrna, during the entire year, the rain falls for 169.2 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 21min.
On the first day of the month, sunrise is at 6:03 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:22 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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.
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FAQ

What is the most humid month in Smyrna?

With an average relative humidity of 79%, May is the most humid month.

What is the average humidity in May in Smyrna?

In May, the average relative humidity is 79%.

How many days does it rain in May in Smyrna?

In May, in Smyrna, Delaware, the rain falls for 18.3 days. Throughout May, 3.07" (78mm) of precipitation is accumulated.

When it does not snow in Smyrna?

In Smyrna, Delaware, snow does not fall in May through October.

Does it snow in Smyrna in May?

In May, it doesn't snow. April is the latest month when it typically snows.

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

In Smyrna, Delaware, the average day length in May is 14h and 21min.

What time are sunrise and sunset in May in Smyrna?

In May, on the first day of the month, sunrise is at 6:03 am and sunset at 7:55 pm. On the last day of the month, in Smyrna, Delaware, sunrise is at 5:37 am and sunset at 8:22 pm EDT.

How long on average sun shines in May in Smyrna?

The average sunshine duration in May in Smyrna is 8.9h.

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

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

How high is the UV index in May in Smyrna?

In May, the average daily maximum UV index in Smyrna is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Smyrna, DE

Average temperature in May - Smyrna, DE
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in May: 55.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in May
Smyrna, DE

Average pressure in May - Smyrna, 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
Smyrna, DE

Average wind speed in May - Smyrna, DE
  • Average wind speed in May: 7.6mph

The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in May
Smyrna, DE

Average humidity in May - Smyrna, DE
  • Average humidity in May: 79%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in May
Smyrna, DE

Average rainfall in May - Smyrna, DE
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in May
Smyrna, DE

Average rainfall days in May - Smyrna, DE
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in May
Smyrna, DE

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

The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Smyrna, DE

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

The month with the highest number of snowfall days is January (4.5 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
Smyrna, DE

Average daylight in May / Average sunshine in May - Smyrna, DE
  • Average daylight in May: 14h and 21min

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).

  • Average sunshine in May: 8h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in May
Smyrna, DE

Average sunshine days in May - Smyrna, DE
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in May
Smyrna, DE

Average UV index in May - Smyrna, 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
Smyrna, DE

Average cloud cover in May - Smyrna, DE
  • Average cloud cover in May: 43

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Smyrna, DE

Average visibility in May - Smyrna, 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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