May weather forecast
Glyndon, MD

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Weather in May

May, the last month of the spring in Glyndon, is an agreeable month, with an average temperature varying between 71.4°F (21.9°C) and 54.1°F (12.3°C).

Temperature

In Glyndon, the average high-temperature in May rises, from an enjoyable 62.1°F (16.7°C) in April, to an agreeable 71.4°F (21.9°C). Glyndon records an average nighttime low of 54.1°F (12.3°C) in May.

Humidity

With an average relative humidity of 80%, May is the most humid month.

Rainfall

In Glyndon, in May, during 17.7 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 158.9 rainfall days, and 31.38" (797mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Glyndon.

Daylight

In Glyndon, the average length of the day in May is 14h and 22min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:28 pm EDT.

Sunshine

In May, the average sunshine in Glyndon is 8.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Glyndon. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 6 during May leads to these advisories:
Guard oneself from overexposure. Defence against sun injury is vital. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the temperature in May in Glyndon?

The average high-temperature and low-temperature in Glyndon during May are 71.4°F (21.9°C) and 54.1°F (12.3°C) respectively.

What is the most humid month in Glyndon?

May is the most humid month in Glyndon, with an average relative humidity of 80%.

What is the average humidity in May in Glyndon?

In May, the average relative humidity in Glyndon is 80%.

How much does it rain in Glyndon in May?

In Glyndon, in May, during 17.7 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When it does not snow in Glyndon?

May through September are months without snowfall.

Does it snow in Glyndon in May?

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

How many hours of daylight does Glyndon have in May?

In Glyndon, the average day length in May is 14h and 22min.

When are sunrise and sunset in May in Glyndon?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, in Glyndon, Maryland, sunrise is at 5:42 am and sunset at 8:28 pm EDT.

How many hours of sunshine does Glyndon have in May?

The average sunshine duration in May in Glyndon, Maryland, is 8.4h.

When is the highest UV index in Glyndon?

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

What is the UV index intensity in May in Glyndon?

In Glyndon, Maryland, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Glyndon, MD

Average temperature in May - Glyndon, MD
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 54.1°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 (24.8°F).

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Average pressure in May
Glyndon, MD

Average pressure in May - Glyndon, 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
Glyndon, MD

Average wind speed in May - Glyndon, MD
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in May
Glyndon, MD

Average humidity in May - Glyndon, MD
  • Average humidity in May: 80%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March, April, July and November (75%).

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Average rainfall in May
Glyndon, MD

Average rainfall in May - Glyndon, MD
  • Average rainfall in May: 3.19"

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

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Average rainfall days in May
Glyndon, MD

Average rainfall days in May - Glyndon, 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 January (8.3 days).

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Average snowfall in May
Glyndon, MD

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

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Glyndon, MD

Average snowfall days in May - Glyndon, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Glyndon, 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 24min).

  • Average sunshine in May: 8h and 2min

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 42min).

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Average sunshine days in May
Glyndon, MD

Average sunshine days in May - Glyndon, MD
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.2 days).

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Average UV index in May
Glyndon, MD

Average UV index in May - Glyndon, 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
Glyndon, MD

Average cloud cover in May - Glyndon, MD
  • Average cloud cover in May: 47

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in May
Glyndon, MD

Average visibility in May - Glyndon, MD
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Glyndon, Maryland, USA

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