May weather forecast
Blair Portal, MD

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Weather in May

The last month of the spring, May, is a warm month in Blair Portal, Maryland, with an average temperature ranging between min 56.5°F (13.6°C) and max 74.3°F (23.5°C).

Temperature

May comes with an increase, with the average high-temperature moving from an enjoyable 64.9°F (18.3°C) in April to a moderately hot 74.3°F (23.5°C). Blair Portal, in May, experiences an average temperature of 56.5°F (13.6°C) at night.

Humidity

May, October and December, with an average relative humidity of 75%, are the most humid months.

Rainfall

In Blair Portal, Maryland, during May, the rain falls for 17.7 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in Blair Portal, there are 154.8 rainfall days, and 30.28" (769mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Blair Portal.

Daylight

The average length of the day in May in Blair Portal 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, sunrise is at 5:44 am and sunset at 8:27 pm EDT.

Sunshine

In May, the average sunshine in Blair Portal is 8.6h.

UV index

The months with the highest UV index in Blair Portal are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. 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. 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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Frequently asked questions

What are the temperatures in Blair Portal in May?

In Blair Portal, in May, the average high-temperature is 74.3°F (23.5°C), and the average low-temperature is 56.5°F (13.6°C).

What is the most humid month in Blair Portal?

The months with the highest humidity in Blair Portal are May, October and December, with an average relative humidity of 75%.

What is the average humidity in May in Blair Portal?

In Blair Portal, Maryland, the average relative humidity in May is 75%.

How much does it rain in Blair Portal in May?

In Blair Portal, Maryland, during May, the rain falls for 17.7 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Blair Portal?

May through October are months without snowfall in Blair Portal, Maryland.

Does it snow in Blair Portal in May?

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

What is the average length of the day in May in Blair Portal?

In May, the average day length in Blair Portal, Maryland, is 14h and 19min.

When are sunrise and sunset in May in Blair Portal?

On the first day of May in Blair Portal, 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 many hours of sunshine does Blair Portal have in May?

The average sunshine duration in May is 8.6h.

What are the months with the highest UV index in Blair Portal?

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

What is the UV index intensity in May in Blair Portal?

In May, the average daily maximum UV index in Blair Portal is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Blair Portal, MD

Average temperature in May - Blair Portal, MD
  • Average high temperature in May: 74.3°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 (39.7°F).

  • Average low temperature in May: 56.5°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

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Average pressure in May
Blair Portal, MD

Average pressure in May - Blair Portal, 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
Blair Portal, MD

Average wind speed in May - Blair Portal, MD
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in May
Blair Portal, MD

Average humidity in May - Blair Portal, MD
  • Average humidity in May: 75%

The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in May
Blair Portal, MD

Average rainfall in May - Blair Portal, MD
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in May
Blair Portal, MD

Average rainfall days in May - Blair Portal, 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 November (8.5 days).

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Average snowfall in May
Blair Portal, MD

Average snowfall in May - Blair Portal, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Blair Portal, MD

Average snowfall days in May - Blair Portal, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.6 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
Blair Portal, MD

Average daylight in May / Average sunshine in May - Blair Portal, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in May
Blair Portal, MD

Average sunshine days in May - Blair Portal, MD
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).

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Average UV index in May
Blair Portal, MD

Average UV index in May - Blair Portal, 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
Blair Portal, MD

Average cloud cover in May - Blair Portal, MD
  • Average cloud cover in May: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in May
Blair Portal, MD

Average visibility in May - Blair Portal, 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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Blair Portal, Maryland, USA

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