May weather forecast
Poolesville, MD

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Weather in May

May, the last month of the spring in Poolesville, is a moderately hot month, with an average temperature varying between 73.9°F (23.3°C) and 54.9°F (12.7°C).

Temperature

An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a comfortable 64°F (17.8°C) to a moderately hot 73.9°F (23.3°C). May's nights observe an average temperature of 54.9°F (12.7°C).

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Poolesville, during May, the rain falls for 13.8 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Poolesville, during the entire year, the rain falls for 115.4 days and collects up to 10.59" (269mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May in Poolesville, Maryland, is 14h and 20min.
On the first day of May, sunrise is at 6:10 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:29 pm EDT.

Sunshine

The average sunshine in May 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 health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 in May translates into these instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the temperature in May in Poolesville?

Poolesville in May has an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 54.9°F (12.7°C).

What is the average humidity in May in Poolesville?

In May, the average relative humidity is 77%.

How many days does it rain in May in Poolesville?

In May, the rain falls for 13.8 days. Throughout May, 1.26" (32mm) of precipitation is accumulated.

When it does not snow in Poolesville?

May through October are months without snowfall in Poolesville.

Does it snow in Poolesville in May?

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

What is the average length of the day in May in Poolesville?

The average day length in May in Poolesville is 14h and 20min.

When is the sunrise / sunset in May in Poolesville?

In May, on the first day of the month, sunrise is at 6:10 am and sunset at 8:03 pm. On the last day of the month, in Poolesville, sunrise is at 5:45 am and sunset at 8:29 pm EDT.

How long on average sun shines in May in Poolesville?

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

When is the highest UV index in Poolesville?

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

What is the UV index intensity in May in Poolesville?

In Poolesville, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from 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
Poolesville, MD

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

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in May: 54.9°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in May
Poolesville, MD

Average pressure in May - Poolesville, 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
Poolesville, MD

Average wind speed in May - Poolesville, MD
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in May
Poolesville, MD

Average humidity in May - Poolesville, MD
  • Average humidity in May: 77%

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in May
Poolesville, MD

Average rainfall in May - Poolesville, MD
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is August (1.5").
The driest month (with the least rainfall) is September (0.51").

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Average rainfall days in May
Poolesville, MD

Average rainfall days in May - Poolesville, MD
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in May
Poolesville, MD

Average snowfall in May - Poolesville, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Poolesville, MD

Average snowfall days in May - Poolesville, MD
  • Average snowfall days in May: 0.1 days

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

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Average daylight in May /
Average sunshine in May
Poolesville, MD

Average daylight in May / Average sunshine in May - Poolesville, 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 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

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Average sunshine days in May
Poolesville, MD

Average sunshine days in May - Poolesville, MD
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (14.6 days).

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Average UV index in May
Poolesville, MD

Average UV index in May - Poolesville, 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, February, November and December (UV index 2).

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Average cloud cover in May
Poolesville, MD

Average cloud cover in May - Poolesville, 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 30).

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Average visibility in May
Poolesville, MD

Average visibility in May - Poolesville, 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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Poolesville, Maryland, USA

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