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
An increase in the average high-temperature marks May, surging from April's chilly 49.6°F (9.8°C) to a refreshing 64.2°F (17.9°C). Grand Isle Station observes an average nighttime temperature of 46°F (7.8°C) during May.Humidity
The months with the lowest humidity in Grand Isle Station are April and May, with an average relative humidity of 76%.Rainfall
In Grand Isle Station, during May, the rain falls for 17.8 days and regularly aggregates up to 2.99" (76mm) of precipitation. In Grand Isle Station, during the entire year, the rain falls for 176.9 days and collects up to 29.88" (759mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Grand Isle Station. During 0.3 snowfall days, in May, Grand Isle Station aggregates 0.04" (1mm) of snow. Throughout the year, in Grand Isle Station, there are 81.9 snowfall days, and 36.77" (934mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 50min.On the first day of the month, sunrise is at 5:42 am and sunset at 7:58 pm. On the last day of May, in Grand Isle Station, sunrise is at 5:10 am and sunset at 8:31 pm EDT.
Sunshine
The average sunshine in May is 8.8h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. When the Sun is at its strongest around midday, find shade and limit exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Grand Isle Station?
What are the least humid months in Grand Isle Station?
What is the average humidity in May in Grand Isle Station?
How many days does it rain in May in Grand Isle Station?
What is the last month it snows in Grand Isle Station?
What is the average length of the day in May in Grand Isle Station?
When is the sunrise / sunset in May in Grand Isle Station?
How long on average sun shines in May in Grand Isle Station?
When is the highest UV index in Grand Isle Station?
What is the UV index intensity in May in Grand Isle Station?
Average temperature in May
Grand Isle Station, VT
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
Grand Isle Station, VT
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Grand Isle Station, VT
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in May
Grand Isle Station, VT
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in May
Grand Isle Station, VT
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Grand Isle Station, VT
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in May
Grand Isle Station, VT
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (9.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grand Isle Station, VT
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grand Isle Station, VT
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in May
Grand Isle Station, VT
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in May
Grand Isle Station, VT
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Grand Isle Station, VT
- Average cloud cover in May: 43
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Grand Isle Station, VT
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Grand Isle Station, Vermont, USA
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