May weather forecast
Dundalk, MD

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Weather in May

May sets the stage for the warm season in Dundalk, as temperatures escalate considerably, reaching highs of 71.8°F (22.1°C). Rainfall continues its upward trend, prompting residents to keep umbrellas at hand. Summer-friendly activities start to gain momentum, with people frequenting beaches and parks under long daylight hours. May's weather pushes the last traces of spring away, paving the way for the sunny days ahead. Throughout the month, Dundalk transforms into a vibrant city, brimming with lively weather.

Temperature

As Dundalk, Maryland, enters May, the average high-temperature increases from the a comfortable 62.2°F (16.8°C) of April to an agreeable 71.8°F (22.1°C). Throughout May, Dundalk records an average temperature of 56.5°F (13.6°C) at night.

Humidity

The most humid month is May, with an average relative humidity of 77%.

Rainfall

In Dundalk, Maryland, in May, during 8.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in Dundalk, there are 84.4 rainfall days, and 6.85" (174mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Dundalk, Maryland.

Ocean temperature

In Dundalk, Maryland, in May, the average water temperature is 55.9°F (13.3°C).
Note: Swimming in 55.9°F (13.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The average length of the day in May is 14h and 20min.
On the first day of May, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:26 pm EDT.

Sunshine

The average sunshine in May in Dundalk 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 threat to health from exposure to the Sun's UV rays for average individuals.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the usual temperature for Dundalk in May?

The high-temperature, in May, in Dundalk, records 71.8°F (22.1°C), while the low-temperature is 56.5°F (13.6°C).

What is the most humid month in Dundalk?

The most humid month is May, with an average relative humidity of 77%.

What is the average humidity in May in Dundalk?

The average relative humidity in May is 77%.

How much does it rain in Dundalk in May?

In Dundalk, in May, during 8.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When it does not snow in Dundalk?

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

What is the water temperature in May in Dundalk?

In Dundalk, the average seawater temperature in May is 55.9°F (13.3°C). Swimming in 55.9°F (13.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

In May, the average day length is 14h and 20min.

What time are sunrise and sunset in May in Dundalk?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of the month, in Dundalk, sunrise is at 5:41 am and sunset at 8:26 pm EDT.

How long on average sun shines in May in Dundalk?

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

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

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

How high is the UV index in May in Dundalk?

In Dundalk, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
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
Dundalk, MD

Average temperature in May - Dundalk, MD
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in May: 56.5°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in May
Dundalk, MD

Average pressure in May - Dundalk, MD
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Dundalk, MD

Average wind speed in May - Dundalk, MD
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in May
Dundalk, MD

Average humidity in May - Dundalk, MD
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in May
Dundalk, MD

Average rainfall in May - Dundalk, MD
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is August (1.06").
The driest month (with the least rainfall) is September (0.24").

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Average rainfall days in May
Dundalk, MD

Average rainfall days in May - Dundalk, MD
  • Average rainfall days in May: 8.3 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is November (4.1 days).

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Average snowfall in May
Dundalk, MD

Average snowfall in May - Dundalk, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.31").
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
Dundalk, MD

Average snowfall days in May - Dundalk, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in May
Dundalk, MD

Average sea temperature in May - Dundalk, MD
  • Average sea temperature in May: 55.9°F

The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

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Average daylight in May /
Average sunshine in May
Dundalk, MD

Average daylight in May / Average sunshine in May - Dundalk, MD
  • 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in May
Dundalk, MD

Average sunshine days in May - Dundalk, MD
  • Average sunshine days in May: 19 days

The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is July (16.9 days).

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Average UV index in May
Dundalk, MD

Average UV index in May - Dundalk, MD
  • 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, February and December (UV index 2).

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Average cloud cover in May
Dundalk, MD

Average cloud cover in May - Dundalk, MD
  • 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
Dundalk, MD

Average visibility in May - Dundalk, MD
  • 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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Dundalk, Maryland, USA

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