Sullivan County, NH Climate

The climate in Sullivan, NH County is a temperate one, with hot summers and cold winters. In the summer months, temperatures can range from mid-70s to low 90s while in the winter temperatures drop into the teens or lower. Precipitation levels are quite high throughout the year, with rain and snow occurring frequently. The area sees a fair amount of sunshine during the summer months but experiences relatively short days in winter due to its northern latitude. Sullivan County has four distinct seasons, providing locals with plenty of opportunities for outdoor activities such as camping, fishing, hiking and more.

Sullivan County, New Hampshire gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sullivan County averages 69 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 199 sunny days per year in Sullivan County. The US average is 205 sunny days.

Sullivan County gets some kind of precipitation, on average, 134 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 9
Rain: averages 45 inches of rain a year
Snow: averages 69 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sullivan County is 6.3 (10=best), which means it is less comfortable than most places in New Hampshire.

9 Summer - 3.9 Winter

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

Climate	Sullivan, New Hampshire	United States
	44.8 in.	38.1 in.
	69.2 in.	27.8 in.
	133.9 days	106.2 days
	199 days	205 days
	79.7°	85.8°
	8.7°	21.7°
	6.3	7
	3.3	4.3
	1175 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 Sullivan County with an average high temperature of 79.7°, which ranks it as cooler than most places in New Hampshire. In Sullivan County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sullivan County are August, July and June.

In Sullivan County, there are 3.4 days annually when the high temperature is over 90°, which is cooler than most places in New Hampshire.

January has the coldest nighttime temperatures for Sullivan County with an average of 8.7°. This is colder than most places in New Hampshire.

In Sullivan County, there are 169.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New Hampshire.

In Sullivan County, there are 18.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Hampshire.

Humidity in Sullivan County 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.

October is the wettest month in Sullivan County with 4.5 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 44.8 inches in Sullivan County means that it is about average compared to other places in New Hampshire.

June is the rainiest month in Sullivan County with 12.8 days of rain, and February is the driest month with only 9.1 rainy days. There are 133.9 rainy days annually in Sullivan County, which is about average compared to other places in New Hampshire. The rainiest season is Autumn when it rains 26% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 69.2 inches in Sullivan County means that it is snowier than most places in New Hampshire. January is the snowiest month in Sullivan County with 18.2 inches of snow, and 6 months of the year have significant snowfall.

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