June weather forecast
Grand Isle, VT

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Weather in June

June is the doorway to summer in Grand Isle, Vermont. Temperatures continue to rise, and the days grow even longer, with sunlight pouring in for more than half the day. Outdoor activities ranging from hiking to fishing become popular sports with pleasant temperatures dominating the months. Even the nights are comfortable and enjoyable with clear skies promising great stargazing potential.

Temperature

June's onset brings a minor rise in the average high-temperature, moving from a comfortable 64.2°F (17.9°C) in May to a pleasant 71.1°F (21.7°C). In the month of June, Grand Isle's average low-temperature falls to a cool 52.9°F (11.6°C).

Humidity

In June, the average relative humidity is 79%.

Rainfall

June is the month with the most rainfall in Grand Isle. Rain falls for 18.8 days and accumulates 3.23" (82mm) of precipitation.

Snowfall

In Grand Isle, Vermont, snow does not fall in June through September.

Daylight

The month with the longest days in Grand Isle is June, with an average of 15h and 30min of daylight.
On the first day of the month, sunrise is at 5:10 am and sunset at 8:32 pm. On the last day of June, in Grand Isle, sunrise is at 5:11 am and sunset at 8:42 pm EDT.

Sunshine

The average sunshine in June is 9.2h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 5 in June suggests the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in June in Grand Isle?

In June, the average high-temperature and low-temperature in Grand Isle, Vermont, are 71.1°F (21.7°C) and 52.9°F (11.6°C) respectively.

What is the average humidity in June in Grand Isle?

In June, the average relative humidity is 79%.

What is the wettest month in Grand Isle?

June is the month with the most rainfall. Rain falls for 18.8 days and accumulates 3.23" (82mm) of precipitation.

How much does it rain in Grand Isle in June?

In Grand Isle, in June, it is raining for 18.8 days, with typically 3.23" (82mm) of accumulated precipitation.

When it does not snow in Grand Isle?

June through September are months without snowfall in Grand Isle.

Does it snow in Grand Isle in June?

In June, in Grand Isle, it doesn't snow. May is the latest month when it typically snows.

When are the longest days in Grand Isle?

June has the longest days of the year, with an average of 15h and 30min of daylight.

How many hours of daylight does Grand Isle have in June?

In June, the average day length in Grand Isle, Vermont, is 15h and 31min.

What time are sunrise and sunset in June in Grand Isle?

On the first day of June in Grand Isle, sunrise is at 5:10 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:42 pm EDT.

How many hours of sunshine does Grand Isle have in June?

In Grand Isle, Vermont, the average sunshine duration in June is 9.2h.

When is the highest UV index in Grand Isle?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in June in Grand Isle?

In June, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Grand Isle, VT

Average temperature in June - Grand Isle, VT
  • Average high temperature in June: 71.1°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 June: 52.9°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 June
Grand Isle, VT

Average pressure in June - Grand Isle, VT
  • Average pressure in June: 29.91"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 June
Grand Isle, VT

Average wind speed in June - Grand Isle, VT
  • Average wind speed in June: 6.4mph

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 June
Grand Isle, VT

Average humidity in June - Grand Isle, VT
  • Average humidity in June: 79%

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 June
Grand Isle, VT

Average rainfall in June - Grand Isle, VT
  • Average rainfall in June: 3.23"

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 June
Grand Isle, VT

Average rainfall days in June - Grand Isle, VT
  • Average rainfall days in June: 18.8 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 June
Grand Isle, VT

Average snowfall in June - Grand Isle, VT
  • Average snowfall in June: 0"

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 June
Grand Isle, VT

Average snowfall days in June - Grand Isle, VT
  • Average snowfall days in June: 0 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 June /
Average sunshine in June
Grand Isle, VT

Average daylight in June / Average sunshine in June - Grand Isle, VT
  • Average daylight in June: 15h and 3min

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 June: 9h and 1min

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 June
Grand Isle, VT

Average sunshine days in June - Grand Isle, VT
  • Average sunshine days in June: 9.3 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 June
Grand Isle, VT

Average UV index in June - Grand Isle, VT
  • Average UV index in June: 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 June
Grand Isle, VT

Average cloud cover in June - Grand Isle, VT
  • Average cloud cover in June: 41

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 June
Grand Isle, VT

Average visibility in June - Grand Isle, VT
  • Average visibility in June: 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, Vermont, USA

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