May weather forecast
Forest Heights, MD

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Weather in May

The last month of the spring, May, is a warm month in Forest Heights, Maryland, with an average temperature varying between 74.7°F (23.7°C) and 56.8°F (13.8°C).

Temperature

With the onset of May, Forest Heights sees a temperature rise, with the average high-temperature moving from April's comfortable 65.1°F (18.4°C) to a moderately hot 74.7°F (23.7°C). An average nighttime temperature of 56.8°F (13.8°C) is observed during May.

Humidity

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

Rainfall

In Forest Heights, Maryland, in May, during 17.7 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In Forest Heights, during the entire year, the rain falls for 158.2 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Forest Heights is 14h and 19min.
On the first day of May in Forest Heights, Maryland, sunrise is at 6:09 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:26 pm EDT.

Sunshine

In May, the average sunshine is 9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in May interprets into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the temperature in May in Forest Heights?

The average high-temperature and low-temperature in Forest Heights during May are 74.7°F (23.7°C) and 56.8°F (13.8°C) respectively.

What are the most humid months in Forest Heights?

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

What is the average humidity in May in Forest Heights?

In Forest Heights, Maryland, the average relative humidity in May is 76%.

How much does it rain in Forest Heights in May?

In May, in Forest Heights, the rain falls for 17.7 days. Throughout May, 2.95" (75mm) of precipitation is accumulated.

When it does not snow in Forest Heights?

May through October are months without snowfall in Forest Heights.

Does it snow in Forest Heights in May?

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

What is the average length of the day in May in Forest Heights?

The average day length in May in Forest Heights, Maryland, is 14h and 19min.

What time are sunrise and sunset in May in Forest Heights?

In May, on the first day of the month, sunrise is at 6:09 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Forest Heights have in May?

The average sunshine duration in May is 9h.

What is the month with the highest UV index in Forest Heights?

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

What is the UV index reading in May in Forest Heights?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Forest Heights, MD

Average temperature in May - Forest Heights, MD
  • Average high temperature in May: 74.7°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 (40.6°F).

  • Average low temperature in May: 56.8°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in May
Forest Heights, MD

Average pressure in May - Forest Heights, 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
Forest Heights, MD

Average wind speed in May - Forest Heights, MD
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in May
Forest Heights, MD

Average humidity in May - Forest Heights, 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%).

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Average rainfall in May
Forest Heights, MD

Average rainfall in May - Forest Heights, MD
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in May
Forest Heights, MD

Average rainfall days in May - Forest Heights, 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
Forest Heights, MD

Average snowfall in May - Forest Heights, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Forest Heights, MD

Average snowfall days in May - Forest Heights, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.5 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
Forest Heights, MD

Average daylight in May / Average sunshine in May - Forest Heights, MD
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in May
Forest Heights, MD

Average sunshine days in May - Forest Heights, MD
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in May
Forest Heights, MD

Average UV index in May - Forest Heights, 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).

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Average cloud cover in May
Forest Heights, MD

Average cloud cover in May - Forest Heights, 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 30).

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Average visibility in May
Forest Heights, MD

Average visibility in May - Forest Heights, 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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Forest Heights, Maryland, USA

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