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
Long Island's transition into May is marked by a minor temperature shift, moving from an agreeable 68°F (20°C) in April to a warm 76.6°F (24.8°C). Long Island encounters an average low-temperature of 55.9°F (13.3°C) during May nights.Humidity
The months with the highest humidity in Long Island are May and December, with an average relative humidity of 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.39" (86mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 10min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:05 pm. On the last day of May, sunrise is at 5:58 am and sunset at 8:30 pm EDT.
Sunshine
In Long Island, the average sunshine in May is 9.4h.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 hazard from exposure to the Sun's UV rays for average individuals.Note: In May, a regular UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What are the most humid months?
What is the average humidity in May?
What is the rainiest month?
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?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Long Island, VA
- Average high temperature in May: 76.6°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in May
Long Island, VA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Long Island, VA
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Long Island, VA
- Average humidity in May: 76%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
Long Island, VA
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Long Island, VA
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in May
Long Island, VA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Long Island, VA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.9 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
Long Island, VA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in May
Long Island, VA
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).
Average UV index in May
Long Island, VA
- 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 and December (UV index 2).
Average cloud cover in May
Long Island, VA
- Average cloud cover in May: 40
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in May
Long Island, VA
- 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).
Long Island, Virginia, USA
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