May weather forecast
Cabin John, MD

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Weather in May

The last month of the spring, May, is a warm month in Cabin John, Maryland, with an average temperature fluctuating between 56.3°F (13.5°C) and 74.5°F (23.6°C).

Temperature

May's arrival is marked by an increase in the average high-temperature, moving from a comfortable 64.9°F (18.3°C) in April to a moderately hot 74.5°F (23.6°C). An average nighttime temperature of 56.3°F (13.5°C) is noted during the month of May.

Humidity

In May, the average relative humidity is 75%.

Rainfall

In Cabin John, Maryland, in May, during 17.1 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Cabin John, during the entire year, the rain falls for 150.3 days and collects up to 28.66" (728mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Cabin John, the average length of the day in May is 14h and 19min.
On the first day of the month, sunrise is at 6:09 am and sunset at 8:01 pm. On the last day of May, in Cabin John, Maryland, sunrise is at 5:44 am and sunset at 8:27 pm EDT.

Sunshine

The average sunshine in May in Cabin John is 8.8h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the temperature in May in Cabin John?

In May, the average high-temperature and low-temperature in Cabin John, Maryland, are 74.5°F (23.6°C) and 56.3°F (13.5°C) respectively.

What is the average humidity in May in Cabin John?

In Cabin John, the average relative humidity in May is 75%.

How many days does it rain in May in Cabin John?

In May, in Cabin John, Maryland, the rain falls for 17.1 days. Throughout May, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in Cabin John?

May through October are months without snowfall in Cabin John.

Does it snow in Cabin John in May?

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

How many hours of daylight does Cabin John have in May?

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

When is the sunrise / sunset in May in Cabin John?

On the first day of May in Cabin John, Maryland, sunrise is at 6:09 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:27 pm EDT.

How long on average sun shines in May in Cabin John?

In May, the average sunshine duration in Cabin John, Maryland, is 8.8h.

What is the month with the highest UV index in Cabin John?

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 in Cabin John?

The average daily maximum UV index in May in Cabin John is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe 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
Cabin John, MD

Average temperature in May - Cabin John, MD
  • Average high temperature in May: 74.5°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in May: 56.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in May
Cabin John, MD

Average pressure in May - Cabin John, 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 (29.95"Hg).

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Average wind speed in May
Cabin John, MD

Average wind speed in May - Cabin John, MD
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in May
Cabin John, MD

Average humidity in May - Cabin John, MD
  • Average humidity in May: 75%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in May
Cabin John, MD

Average rainfall in May - Cabin John, MD
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.69").

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Average rainfall days in May
Cabin John, MD

Average rainfall days in May - Cabin John, MD
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in May
Cabin John, MD

Average snowfall in May - Cabin John, 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 and October (0").

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Average snowfall days in May
Cabin John, MD

Average snowfall days in May - Cabin John, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (4.4 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
Cabin John, MD

Average daylight in May / Average sunshine in May - Cabin John, 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).

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Average sunshine days in May
Cabin John, MD

Average sunshine days in May - Cabin John, MD
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (20.4 days).
The months with the least sunshine days are May and July (12.3 days).

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Average UV index in May
Cabin John, MD

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

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Average cloud cover in May
Cabin John, MD

Average cloud cover in May - Cabin John, MD
  • Average cloud cover in May: 44

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in May
Cabin John, MD

Average visibility in May - Cabin John, 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).

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Cabin John, Maryland, USA

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