April weather forecast
Grand Isle, VT

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Weather in April

In April, Grand Isle rapidly leaves winter behind with warmer temperatures and more rain replacing the snow. The change in weather brings warmth to the region; however, rainfall increases making it the wettest spring month. The landscapes come alive with colorful blooms and lush greenery replacing the barren winter scenes. The long-awaited return of vibrant life and color to the Vermont landscapes is magical.

Temperature

April witnesses an increase in the average high-temperature, moving from a wintry 35.6°F (2°C) in March to a chilly 49.6°F (9.8°C). During the nights in April, an average low-temperature of 34.2°F (1.2°C) is observed in Grand Isle.

Humidity

The months with the lowest humidity are April and May, with an average relative humidity of 76%.

Rainfall

In Grand Isle, Vermont, in April, during 17.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, there are 176.9 rainfall days, and 29.88" (759mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Grand Isle. In Grand Isle, in April, during 5.1 snowfall days, 2.28" (58mm) of snow is typically accumulated. In Grand Isle, during the entire year, snow falls for 81.9 days and aggregates up to 36.77" (934mm) of snow.

Daylight

In April, the average length of the day is 13h and 31min.
On the first day of April in Grand Isle, Vermont, sunrise is at 6:32 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:57 pm EDT.

Sunshine

In April, the average sunshine is 7.5h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 3 in April suggests the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What is the usual temperature for Grand Isle in April?

April temperatures in Grand Isle vary between a high-temperature of 49.6°F (9.8°C) and a low-temperature of 34.2°F (1.2°C).

What is the least humid month in Grand Isle?

The months with the lowest humidity are April and May, with an average relative humidity of 76%.

What is the average humidity in April in Grand Isle?

In April, the average relative humidity in Grand Isle is 76%.

How many days does it rain in April in Grand Isle?

In April, in Grand Isle, Vermont, the rain falls for 17.8 days. Throughout April, 2.64" (67mm) of precipitation is accumulated.

How much does it snow in Grand Isle in April?

In Grand Isle, Vermont, in April, snow falls for 5.1 days, with typically accumulated 2.28" (58mm) of snow.

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

The average day length in April in Grand Isle, Vermont, is 13h and 31min.

When are sunrise and sunset in April in Grand Isle?

On the first day of April in Grand Isle, Vermont, sunrise is at 6:32 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:57 pm EDT.

How long on average sun shines in April in Grand Isle?

The average sunshine duration in April in Grand Isle, Vermont, is 7.5h.

What is the UV index intensity in April in Grand Isle?

The average daily maximum UV index in April in Grand Isle is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Grand Isle, VT

Average temperature in April - Grand Isle, VT
  • Average high temperature in April: 49.6°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 April: 34.2°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).

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Average pressure in April
Grand Isle, VT

Average pressure in April - Grand Isle, VT
  • Average pressure in April: 29.96"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).

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Average wind speed in April
Grand Isle, VT

Average wind speed in April - Grand Isle, VT
  • Average wind speed in April: 8mph

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).

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Average humidity in April
Grand Isle, VT

Average humidity in April - Grand Isle, VT
  • Average humidity in April: 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%).

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Average rainfall in April
Grand Isle, VT

Average rainfall in April - Grand Isle, VT
  • Average rainfall in April: 2.64"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in April
Grand Isle, VT

Average rainfall days in April - Grand Isle, VT
  • Average rainfall days in April: 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).

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Average snowfall in April
Grand Isle, VT

Average snowfall in April - Grand Isle, VT
  • Average snowfall in April: 2.28"

The month with the highest snowfall is February (9.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Grand Isle, VT

Average snowfall days in April - Grand Isle, VT
  • Average snowfall days in April: 5.1 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).

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Average daylight in April /
Average sunshine in April
Grand Isle, VT

Average daylight in April / Average sunshine in April - Grand Isle, VT
  • Average daylight in April: 13h 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 April: 7h and 3min

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).

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Average sunshine days in April
Grand Isle, VT

Average sunshine days in April - Grand Isle, VT
  • Average sunshine days in April: 8.7 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).

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Average UV index in April
Grand Isle, VT

Average UV index in April - Grand Isle, VT
  • Average UV index in April: 3

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).

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Average cloud cover in April
Grand Isle, VT

Average cloud cover in April - Grand Isle, VT
  • Average cloud cover in April: 53

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in April
Grand Isle, VT

Average visibility in April - Grand Isle, VT
  • Average visibility in April: 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).

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Grand Isle, Vermont, USA

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