May weather forecast
Riverdale Gardens, MD

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Weather in May

May, the last month of the spring in Riverdale Gardens, is a warm month, with an average temperature ranging between min 57°F (13.9°C) and max 73.9°F (23.3°C).

Temperature

The beginning of May marks a shift in the average high-temperature, moving from April's enjoyable 64.8°F (18.2°C) to a moderately hot 73.9°F (23.3°C). The average nighttime temperature lowers to a refreshing 57°F (13.9°C) throughout May.

Humidity

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

Rainfall

In Riverdale Gardens, in May, it is raining for 17.9 days, with typically 2.99" (76mm) of accumulated precipitation. In Riverdale Gardens, during the entire year, the rain falls for 157.9 days and collects up to 31.14" (791mm) of precipitation.

Snowfall

May through November are months without snowfall in Riverdale Gardens, Maryland.

Daylight

The average length of the day in May is 14h and 19min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:43 am and sunset at 8:26 pm EDT.

Sunshine

In May, the average sunshine in Riverdale Gardens is 8.9h.

UV index

The months with the highest UV index in Riverdale Gardens 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 exposure to the Sun's UV rays for ordinary individuals.
Note: In May, an average UV index of 6 transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What are the temperatures in Riverdale Gardens in May?

In Riverdale Gardens, 73.9°F (23.3°C) is the average high-temperature and 57°F (13.9°C) is the average low-temperature during May.

What is the most humid month in Riverdale Gardens?

The months with the highest humidity in Riverdale Gardens, Maryland, are May, October and December, with an average relative humidity of 76%.

What is the average humidity in May in Riverdale Gardens?

The average relative humidity in May in Riverdale Gardens, Maryland, is 76%.

How much does it rain in Riverdale Gardens in May?

In Riverdale Gardens, during May, the rain falls for 17.9 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow in Riverdale Gardens?

May through November are months without snowfall in Riverdale Gardens.

Does it snow in Riverdale Gardens in May?

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

How many hours of daylight does Riverdale Gardens have in May?

The average day length in May in Riverdale Gardens, Maryland, is 14h and 19min.

When are sunrise and sunset in May in Riverdale Gardens?

In May, on the first day of the month, sunrise is at 6:08 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Riverdale Gardens have in May?

In Riverdale Gardens, Maryland, the average sunshine duration in May is 8.9h.

When is the highest UV index in Riverdale Gardens?

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

How high is the UV index in May in Riverdale Gardens?

In May, the average daily maximum UV index in Riverdale Gardens is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Riverdale Gardens, MD

Average temperature in May - Riverdale Gardens, MD
  • Average high temperature in May: 73.9°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 (39.9°F).

  • Average low temperature in May: 57°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in May
Riverdale Gardens, MD

Average pressure in May - Riverdale Gardens, 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 (29.94"Hg).

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Average wind speed in May
Riverdale Gardens, MD

Average wind speed in May - Riverdale Gardens, MD
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Riverdale Gardens, MD

Average humidity in May - Riverdale Gardens, 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
Riverdale Gardens, MD

Average rainfall in May - Riverdale Gardens, MD
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in May
Riverdale Gardens, MD

Average rainfall days in May - Riverdale Gardens, MD
  • Average rainfall days in May: 17.9 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

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Average snowfall in May
Riverdale Gardens, MD

Average snowfall in May - Riverdale Gardens, 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, October and November (0").

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Average snowfall days in May
Riverdale Gardens, MD

Average snowfall days in May - Riverdale Gardens, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.1 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
Riverdale Gardens, MD

Average daylight in May / Average sunshine in May - Riverdale Gardens, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in May
Riverdale Gardens, MD

Average sunshine days in May - Riverdale Gardens, MD
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in May
Riverdale Gardens, MD

Average UV index in May - Riverdale Gardens, 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
Riverdale Gardens, MD

Average cloud cover in May - Riverdale Gardens, 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 29).

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Average visibility in May
Riverdale Gardens, MD

Average visibility in May - Riverdale Gardens, MD
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Riverdale Gardens, Maryland, USA

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