May weather forecast
Cabin John, MD

Weather in May

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

Temperature

In Cabin John, the average high-temperature in May rises, from an enjoyable 64.9°F (18.3°C) in April, to a moderately hot 74.5°F (23.6°C). In Cabin John, Maryland, in May, the average low-temperature is 56.3°F (13.5°C).

Humidity

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

Rainfall

In Cabin John, during May, the rain falls for 17.1 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, in Cabin John, there are 150.3 rainfall days, and 28.66" (728mm) of precipitation is accumulated.

Snowfall

In Cabin John snow does not fall in May through October.

Daylight

In Cabin John, the average length of the day is 14.3h.

Sunshine

The average sunshine in Cabin John, Maryland, is 8.8h.

UV index

Months with the highest UV index in Cabin John are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in May in Cabin John?

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

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

In Cabin John, Maryland, in May, during 17.1 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow in Cabin John?

In Cabin John snow does not fall in May through October.

Does it snow in Cabin John in May?

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

What is the average length of the day in May in Cabin John?

In Cabin John, Maryland, the average length of the day in May is 14.3h.

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

The average sunshine in May is 8.8h.

When is the highest UV index in Cabin John?

Months with the highest UV index in Cabin John are May through August, with an average maximum UV index of 6.

How high is the UV index in May in Cabin John?

In Cabin John, Maryland, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.

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"

The month with the highest atmospheric pressure is November (30.14").
The month with the lowest atmospheric pressure is June (29.95").

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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").
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).
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: 14.3h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in May: 8.8h

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January, February and December (Average sunshine: 5).

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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).
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

Months with the highest UV index are May, June, July and August (UV index 6).
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

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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