Grand Isle, VT Climate

Grand Isle, VT has a humid continental climate with an average temperature of 43 degrees Fahrenheit throughout the year. The area experiences four distinct seasons with warm summers and cold winters. During the summer months, temperatures can reach up to 80 degrees Fahrenheit during the day while dropping to the low 50s at night. Winters in Grand Isle bring snowfall and temperatures that can dip down into the single digits and below zero on occasion. Precipitation in Grand Isle is relatively evenly distributed throughout the year with an average yearly rainfall of 42 inches.

Grand Isle, Vermont gets 34 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grand Isle averages 62 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 159 sunny days per year in Grand Isle. The US average is 205 sunny days.

Grand Isle gets some kind of precipitation, on average, 133 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 80 degrees
Winter Low: the January low is 8
Rain: averages 34 inches of rain a year
Snow: averages 62 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Grand Isle is 6.4 (10=best), which means it is more comfortable than most places in Vermont.

9.3 Summer - 3.8 Winter

July, August and June are the most pleasant months in Grand Isle, while January and February are the least comfortable months.

Climate	Grand Isle, Vermont	United States
	34.2 in.	38.1 in.
	61.6 in.	27.8 in.
	133.4 days	106.2 days
	159 days	205 days
	79.7°	85.8°
	8.4°	21.7°
	6.4	7
	3.1	4.3
	174 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Grand Isle with an average high temperature of 79.7°, which ranks it as about average compared to other places in Vermont. In Grand Isle, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Isle are August, July and June.

In Grand Isle, there are 3.4 days annually when the high temperature is over 90°, which is about average compared to other places in Vermont.

January has the coldest nighttime temperatures for Grand Isle with an average of 8.4°. This is warmer than most places in Vermont.

In Grand Isle, there are 149.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Vermont.

In Grand Isle, there are 16.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Vermont.

Humidity in Grand Isle is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.

August is the wettest month in Grand Isle with 3.7 inches of rain, and the driest month is February with 1.7 inches. The wettest season is Autumn with 32% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 34.2 inches in Grand Isle means that it is one of the driest places in Vermont.

May is the rainiest month in Grand Isle with 12.7 days of rain, and February is the driest month with only 8.9 rainy days. There are 133.4 rainy days annually in Grand Isle, which is less rainy than most places in Vermont. The rainiest season is Summer when it rains 26% of the time and the driest is Spring with only a 24% chance of a rainy day.

An annual snowfall of 61.6 inches in Grand Isle means that it is one of the least snowy places in Vermont. January is the snowiest month in Grand Isle with 15.4 inches of snow, and 6 months of the year have significant snowfall.