Grafton, NH Climate


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United States / New Hampshire / No Metro Area / Grafton County / Grafton / Zip Codes
Grafton, NH has a moderate climate with warm summers and cold winters. The average temperatures in the summer are around 70 to 80 degrees Fahrenheit, while the average temperatures in winter range from 20 to 30 degrees Fahrenheit. The humidity is high during the warmer months and low during the cooler months. Rainfall tends to be evenly distributed throughout the year, with occasional snowfalls occurring in winter. Overall, Grafton provides an enjoyable climate for outdoor activities throughout the year.

Grafton, New Hampshire gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grafton averages 72 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 Grafton. The US average is 205 sunny days.

Grafton gets some kind of precipitation, on average, 136 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 7
Rain: averages 48 inches of rain a year
Snow: averages 72 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Grafton is 6.2 (10=best), which means it is less comfortable than most places in New Hampshire.

8.9 Summer - 3.7 Winter
July, August and June are the most pleasant months in Grafton, while January and February are the least comfortable months.

  ClimateGrafton, New HampshireUnited States
    Unlock38.1 in.
  71.7 in.  Unlock
    Unlock106.2 days
  199 days  Unlock
  78.9°85.8°
    Unlock21.7°
  6.2  Unlock
    Unlock4.3
  837 ft.  Unlock
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 with an average high temperature of 78.9°, which ranks it as cooler than most places in New Hampshire. In Grafton, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grafton are August, July and June.
In Grafton, there are 2.2 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 with an average of 7.2°. This is colder than most places in New Hampshire.
In Grafton, there are 179.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in New Hampshire.
In Grafton, there are 23.3 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Hampshire.
Humidity in Grafton 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 with 4.8 inches of rain, and the driest month is February with 3.1 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 47.5 inches in Grafton means that it is wetter than most places in New Hampshire.
June is the rainiest month in Grafton with 12.6 days of rain, and February is the driest month with only 9.7 rainy days. There are 135.5 rainy days annually in Grafton, which is rainier than most places in New Hampshire. 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 71.7 inches in Grafton means that it is snowier than most places in New Hampshire. January is the snowiest month in Grafton with 18.6 inches of snow, and 6 months of the year have significant snowfall.
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