May weather forecast
Aberdeen, MD

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Weather in May

May further solidifies spring's grip on Aberdeen's weather, initiating the climb towards summer. A distinct elevation in temperature is noticeable with afternoon highs reaching up to 71.8°F (22.1°C). The weather becomes more predictable, featuring warm days and mild nights. As the day stretches out, it provides ample time for outdoor activities. Consequently, May marks a departure from the unpredictable spring weather of April.

Temperature

May in Aberdeen shows a rise in the average high-temperature, moving from April's refreshing 62.2°F (16.8°C) to an agreeable 71.8°F (22.1°C). Aberdeen records a steady low-temperature average of 55°F (12.8°C) during May.

Humidity

The most humid month is May, with an average relative humidity of 79%.

Rainfall

In Aberdeen, in May, it is raining for 17.7 days, with typically 2.8" (71mm) of accumulated precipitation. In Aberdeen, during the entire year, the rain falls for 153 days and collects up to 30.39" (772mm) of precipitation.

Snowfall

January through March, May, November and December are months with snowfall. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 12.7 snowfall days, and 6.85" (174mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 22min.
On the first day of May, sunrise is at 6:04 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:25 pm EDT.

Sunshine

In Aberdeen, the average sunshine in May is 8.7h.

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 unprotected exposure to Sun's UV rays for average individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Aberdeen in May?

In Aberdeen, 71.8°F (22.1°C) is the average high-temperature and 55°F (12.8°C) is the average low-temperature during May.

What is the most humid month?

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

What is the average humidity in May?

The average relative humidity in May is 79%.

How many days does it rain in May?

In Aberdeen, in May, during 17.7 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

When does it start to snow?

May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 22min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:04 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:25 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.7h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Aberdeen, MD

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

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average pressure in May
Aberdeen, MD

Average pressure in May - Aberdeen, 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).

Average wind speed in May
Aberdeen, MD

Average wind speed in May - Aberdeen, MD
  • Average wind speed in May: 7mph

The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in May
Aberdeen, MD

Average humidity in May - Aberdeen, MD
  • Average humidity in May: 79%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are March, April and November (74%).

Average rainfall in May
Aberdeen, MD

Average rainfall in May - Aberdeen, MD
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in May
Aberdeen, MD

Average rainfall days in May - Aberdeen, MD
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in May
Aberdeen, MD

Average snowfall in May - Aberdeen, MD
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in May
Aberdeen, MD

Average snowfall days in May - Aberdeen, MD
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Aberdeen, 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 24min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in May
Aberdeen, MD

Average sunshine days in May - Aberdeen, MD
  • Average sunshine days in May: 10.9 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in May
Aberdeen, MD

Average UV index in May - Aberdeen, 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, November and December (UV index 2).

Average cloud cover in May
Aberdeen, MD

Average cloud cover in May - Aberdeen, MD
  • Average cloud cover in May: 45

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in May
Aberdeen, MD

Average visibility in May - Aberdeen, MD
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Aberdeen, Maryland, USA

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