Sullivan, NH Weather


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The most pleasant months of the year for Sullivan are August, July and June. In Sullivan, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Sullivan with an average high temperature of 79.3°, which ranks it as cooler than most places in New Hampshire. January is the snowiest month in Sullivan with 18.4 inches of snow, and 6 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Sullivan, NH

12 AM PST

Light Rain Likely

40°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonLight Rain Likely43° / 37°SE 5 mph
FridayMostly Cloudy57° / 42°S 0 to 10 mph
SaturdayIsolated Rain Showers55° / 32°W 5 to 15 mph
SundayMostly Sunny52° / 33°W 10 to 15 mph
MondaySunny55° / 33°W 10 mph
TuesdayMostly Sunny60° / 40°S 5 to 15 mph
WednesdayLight Rain Likely53° / 30°SW 10 to 15 mph

Weather Highlights

Summer High: the July high is around 79 degrees
Winter Low: the January low is 12
Rain: averages 46 inches of rain a year
Snow: averages 69 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Sullivan area is 9.1 (10=best), which means it is more comfortable than most places in New Hampshire.

9.1 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January30° 12°
February33° 14°
March41° 22°
April55° 34°
May67° 44°
June75° 54°
July79° 59°
August78° 57°
September70° 50°
October58° 38°
November46° 29°
December34° 18°
Hot, Freezing, Rainy, Snowy Days: Sullivan
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January030107
February02796
March027105
April012111
May01140
June10130
July10120
August00110
September00100
October08110
November020122
December029116

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.

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