Grafton County, NH Climate

Grafton County is located in the northeastern part of New Hampshire and has a humid continental climate, with hot, humid summers and cold, snowy winters. During the summer, temperatures often reach into the 70s and 80s (degrees Fahrenheit) while in winter temperatures dip below freezing. Precipitation occurs throughout the year, with heavy snowfall typically occurring between November and April. The area experiences all four seasons and has considerable amounts of sunshine during the summer months. The region also experiences occasional thunderstorms during spring and summer months. Overall, Grafton County enjoys mild temperatures with plenty of sunshine in the warmer months and lots of snow in the colder months to enjoy winter activities.

Grafton County, New Hampshire gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grafton County averages 73 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 194 sunny days per year in Grafton County. The US average is 205 sunny days.

Grafton County gets some kind of precipitation, on average, 143 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 79 degrees
Winter Low: the January low is 6
Rain: averages 42 inches of rain a year
Snow: averages 73 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Grafton County is 6.1 (10=best), which means it is less comfortable than most places in New Hampshire.

8.9 Summer - 3.6 Winter

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

Climate	Grafton, New Hampshire	United States
	42.2 in.	38.1 in.
	72.7 in.	27.8 in.
	142.9 days	106.2 days
	194 days	205 days
	79.3°	85.8°
	5.6°	21.7°
	6.1	7
	3.1	4.3
	1490 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 Grafton County with an average high temperature of 79.3°, which ranks it as cooler than most places in New Hampshire. In Grafton County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grafton County are August, July and June.

In Grafton County, there are 3.5 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 Grafton County with an average of 5.6°. This is colder than most places in New Hampshire.

In Grafton County, there are 179.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New Hampshire.

In Grafton County, there are 26.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Hampshire.

Humidity in Grafton 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 Grafton County with 4.3 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 42.2 inches in Grafton County means that it is drier than most places in New Hampshire.

June is the rainiest month in Grafton County with 13.8 days of rain, and February is the driest month with only 9.7 rainy days. There are 142.9 rainy days annually in Grafton County, which is one of the rainiest places in New Hampshire. The rainiest season is Autumn when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.

An annual snowfall of 72.7 inches in Grafton County means that it is snowier than most places in New Hampshire. January is the snowiest month in Grafton County with 18.5 inches of snow, and 6 months of the year have significant snowfall.

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