Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The average high-temperature increases in May, moving from a comfortable 62.1°F (16.7°C) in April to an agreeable 71.4°F (21.9°C). May nights are marked by an average low-temperature of 54.1°F (12.3°C).Humidity
The most humid month is May, with an average relative humidity of 80%.Rainfall
In May, the rain falls for 17.7 days. Throughout May, 3.19" (81mm) of precipitation is accumulated. Throughout the year, there are 158.9 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
In Glyndon, snow does not fall in May through September.Daylight
In Glyndon, the average length of the day in May is 14h and 22min.On the first day of May, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:28 pm EDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 during May translates into the following guidance:
Shield from overexposure. Defense against sun-related harm is required. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the most humid month?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Glyndon have in May?
When is the highest UV index?
What is the UV index reading in May?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Glyndon, Maryland, USA
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