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 shift from April to May brings an increase in the average high-temperature, moving from an enjoyable 61.7°F (16.5°C) to a pleasant 71.1°F (21.7°C). Deal Island observes an average low-temperature of 58.6°F (14.8°C) during May nights.Humidity
The most humid month is May, with an average relative humidity of 79%.Rainfall
In Deal Island, during May, the rain falls for 15.9 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Deal Island, during the entire year, the rain falls for 158.7 days and collects up to 30.35" (771mm) of precipitation.Snowfall
In Deal Island, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 16min.On the first day of May, sunrise is at 6:06 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:20 pm EDT.
Sunshine
In Deal Island, the average sunshine in May is 9.5h.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 risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during May leads to these advisories:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the most humid month in Deal Island?
What is the average humidity in May in Deal Island?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Deal Island have in May?
What are the months with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Deal Island, MD
- Average high temperature in May: 71.1°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 (42.1°F).
- Average low temperature in May: 58.6°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in May
Deal Island, MD
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Deal Island, MD
- Average wind speed in May: 8.8mph
The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Deal Island, MD
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall in May
Deal Island, MD
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in May
Deal Island, MD
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in May
Deal Island, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Deal Island, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Deal Island, 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 36min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in May
Deal Island, MD
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is August (9.8 days).
Average UV index in May
Deal Island, 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).
Average cloud cover in May
Deal Island, MD
- Average cloud cover in May: 38
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Deal Island, 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).
Deal Island, Maryland, USA
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