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
May's arrival brings a temperature shift, moving from an enjoyable 61.9°F (16.6°C) in April to an agreeable 71.4°F (21.9°C). May brings with it a nighttime average temperature of 54.5°F (12.5°C).Humidity
With an average relative humidity of 80%, May is the most humid month in Glen Arm, Maryland.Rainfall
In May, in Glen Arm, the rain falls for 17.1 days. Throughout May, 2.99" (76mm) of precipitation is accumulated. In Glen Arm, during the entire year, the rain falls for 155.7 days and collects up to 32.68" (830mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows in Glen Arm. During 0.2 snowfall days, in May, Glen Arm aggregates 0.2" (5mm) of snow. Throughout the year, in Glen Arm, there are 19.9 snowfall days, and 9.72" (247mm) of snow is accumulated.Daylight
In Glen Arm, the average length of the day in May is 14h and 22min.On the first day of May, sunrise is at 6:05 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:26 pm EDT.
Sunshine
The average sunshine in May 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In May, a regular UV index of 6 translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are May temperatures in Glen Arm?
What is the most humid month in Glen Arm?
What is the average humidity in May in Glen Arm?
How many days does it rain in May in Glen Arm?
What is the last month it snows in Glen Arm?
How many hours of daylight does Glen Arm have in May?
When are sunrise and sunset in May in Glen Arm?
How many hours of sunshine does Glen Arm have in May?
What are the months with the highest UV index in Glen Arm?
What is the UV index intensity in May in Glen Arm?
Average temperature in May
Glen Arm, MD
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in May
Glen Arm, MD
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Glen Arm, MD
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Glen Arm, MD
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Glen Arm, MD
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days in May
Glen Arm, MD
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Glen Arm, MD
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Glen Arm, MD
- Average snowfall days in May: 0.2 days
The months with the highest number of snowfall days are January and February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Glen Arm, 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 48min).
Average sunshine days in May
Glen Arm, MD
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in May
Glen Arm, 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
Glen Arm, 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
Glen Arm, 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).
Glen Arm, Maryland, USA
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