May weather forecast
Calvert Hills, MD

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Weather in May

The last month of the spring, May, is a moderately hot month in Calvert Hills, Maryland, with an average temperature ranging between min 57°F (13.9°C) and max 73.9°F (23.3°C).

Temperature

The shift into May is marked by a rise in the average high-temperature, moving from April's refreshing 64.8°F (18.2°C) to a moderately hot 73.9°F (23.3°C). During May, Calvert Hills observes a consistent average nighttime temperature 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 Calvert Hills, in May, during 17.9 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Calvert Hills, Maryland, during the entire year, the rain falls for 157.9 days and collects up to 31.14" (791mm) of precipitation.

Snowfall

May through November are months without snowfall.

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 5:44 am and sunset at 8:27 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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during May translates into the following guidance:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Calvert Hills in May?

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

What is the most humid month?

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

What is the average humidity in May?

In Calvert Hills, the average relative humidity in May is 76%.

How many days does it rain in May?

In Calvert Hills, in May, it is raining for 17.9 days, with typically 2.99" (76mm) of accumulated precipitation.

When it does not snow?

May through November are months without snowfall.

Does it snow in Calvert Hills in May?

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

How many hours of daylight does Calvert Hills have in May?

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

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:27 pm EDT.

How many hours of sunshine does Calvert Hills have in May?

The average sunshine duration in May 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.

How high is the UV index in May?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Calvert Hills, MD

Average temperature in May - Calvert Hills, 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
Calvert Hills, MD

Average pressure in May - Calvert Hills, 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
Calvert Hills, MD

Average wind speed in May - Calvert Hills, 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
Calvert Hills, MD

Average humidity in May - Calvert Hills, 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
Calvert Hills, MD

Average rainfall in May - Calvert Hills, 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
Calvert Hills, MD

Average rainfall days in May - Calvert Hills, 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
Calvert Hills, MD

Average snowfall in May - Calvert Hills, 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
Calvert Hills, MD

Average snowfall days in May - Calvert Hills, 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
Calvert Hills, MD

Average daylight in May / Average sunshine in May - Calvert Hills, 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
Calvert Hills, MD

Average sunshine days in May - Calvert Hills, 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
Calvert Hills, MD

Average UV index in May - Calvert Hills, 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
Calvert Hills, MD

Average cloud cover in May - Calvert Hills, 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
Calvert Hills, MD

Average visibility in May - Calvert Hills, 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).

Calvert Hills, Maryland, USA

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