May weather forecast
New Carrollton, MD

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Weather in May

May in New Carrollton sees a further enhancement of the spring weather that April initiated. The weather at this time tends to favor outdoor activities, with warmer temperatures drawing people out to enjoy the city's attractions. The record-breaking leap in daylight hours rings in the start of the longest days of the year. An average highest temperature hitting 73.9°F (23.3°C) shows a considerable warm-up from the preceding month. Moving into June, this warming trend will become more pronounced, eventually paving the way for the city's summer season.

Temperature

May's onset brings a rise in the average high-temperature, moving from a comfortable 64.8°F (18.2°C) in April to a moderately hot 73.9°F (23.3°C). Throughout the month of May, New Carrollton reports a steady low-temperature average of 57°F (13.9°C).

Humidity

May, October and December, with an average relative humidity of 76%, are the most humid months.

Rainfall

In New Carrollton, during May, the rain falls for 17.9 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

Snowfall

In New Carrollton, snow does not fall in May through November.

Daylight

The average length of the day in May is 14h and 19min.
On the first day of May, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:26 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

The months with the highest UV index in New Carrollton are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature, in May, in New Carrollton, records 73.9°F (23.3°C), while the low-temperature is 57°F (13.9°C).

What are the most humid months?

The months with the highest humidity are May, October and December, with an average relative humidity of 76%.

What is the average humidity in May?

The average relative humidity in May is 76%.

How many days does it rain in May?

In May, the rain falls for 17.9 days. Throughout May, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in New Carrollton?

In New Carrollton, snow does not fall in May through November.

Does it snow in May?

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

How many hours of daylight does New Carrollton have in May?

In May, the average day length is 14h and 19min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:26 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.9h.

What is the month with the highest UV index?

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

What is the UV index reading in May?

In May, the average daily maximum UV index in New Carrollton is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
New Carrollton, MD

Average temperature in May - New Carrollton, MD
  • Average high temperature in May: 73.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in May: 57°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in May
New Carrollton, MD

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
New Carrollton, MD

Average wind speed in May - New Carrollton, MD
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
New Carrollton, MD

Average humidity in May - New Carrollton, MD
  • Average humidity in May: 76%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in May
New Carrollton, MD

Average rainfall in May - New Carrollton, MD
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in May
New Carrollton, MD

Average rainfall days in May - New Carrollton, MD
  • Average rainfall days in May: 17.9 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in May
New Carrollton, MD

Average snowfall in May - New Carrollton, MD
  • Average snowfall in May: 0"

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

Average snowfall days in May
New Carrollton, MD

Average snowfall days in May - New Carrollton, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
New Carrollton, MD

Average daylight in May / Average sunshine in May - New Carrollton, 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).

Average sunshine days in May
New Carrollton, MD

Average sunshine days in May - New Carrollton, MD
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in May
New Carrollton, MD

Average UV index in May - New Carrollton, 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 and December (UV index 2).

Average cloud cover in May
New Carrollton, MD

Average cloud cover in May - New Carrollton, MD
  • Average cloud cover in May: 43

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in May
New Carrollton, MD

Average visibility in May - New Carrollton, 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).

New Carrollton, Maryland, USA

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