May weather forecast
Smyrna, DE

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Weather in May

May brings sustained warmth and a spike in the relative humidity to 79%, the highest of the year, in addition to longer daylight hours. Average high temperature continues to climb up to 71.2°F (21.8°C), a significant raise considering the gradual increase witnessed in previous months. There is observed an accentuated increase in rainfall, marking a slight shift from the preceding April's figures. This season sees the town at its eccentric best with a blend of warm weather, refreshing showers and lush greenery. Despite the rising temperatures, the ambience remains energetic and full of life.

Temperature

May sees a rise in the average high-temperature, climbing from an enjoyable 62.2°F (16.8°C) in April to a pleasant 71.2°F (21.8°C). During May, the average low-temperature is a moderate 55.9°F (13.3°C).

Humidity

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

Rainfall

In Smyrna, Delaware, during May, the rain falls for 18.3 days and regularly aggregates up to 3.07" (78mm) of precipitation. Throughout the year, in Smyrna, there are 169.2 rainfall days, and 34.96" (888mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May in Smyrna is 14h and 21min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:56 pm. On the last day of May, in Smyrna, sunrise is at 5:37 am and sunset at 8:22 pm EDT.

Sunshine

The average sunshine in May in Smyrna 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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the maximum UV index of 6 suggests these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Smyrna in May?

Smyrna in May has an average high-temperature of 71.2°F (21.8°C) and an average low-temperature of 55.9°F (13.3°C).

What is the most humid month in Smyrna?

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

What is the average humidity in May in Smyrna?

The average relative humidity in May in Smyrna, Delaware, is 79%.

How much does it rain in Smyrna in May?

In Smyrna, Delaware, in May, during 18.3 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

When it does not snow in Smyrna?

May through October are months without snowfall in Smyrna.

Does it snow in Smyrna in May?

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

When are sunrise and sunset in May in Smyrna?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:22 pm EDT.

How many hours of sunshine does Smyrna have in May?

In May, the average sunshine duration in Smyrna is 8.9h.

When is the highest UV index in Smyrna?

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

How high is the UV index in May in Smyrna?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
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
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 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 30min).

  • Average sunshine in May: 8h and 5min

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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Smyrna, Delaware, USA

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