Nantucket County, MA Weather


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United States / Massachusetts / No Metro Area / Nantucket County / Cities / Zip Codes

The most pleasant months of the year for Nantucket County are July, August and September. In Nantucket County, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Nantucket County with an average high temperature of 76.4°, which ranks it as one of the coolest places in Massachusetts. February is the snowiest month in Nantucket County with 8.4 inches of snow, and 4 months of the year have significant snowfall. August is the most humid month, though humidity is low for most of the year.

Today's Weather - Nantucket, MA

6 PM PST

Patchy Frost

40°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightPatchy Frost31° / 48°SW 1 to 8 mph
Friday NightClear34° / 50°SW 5 to 8 mph
Saturday NightMostly Cloudy then Slight Chance Rain Showers45° / 51°SW 8 mph
Sunday NightSlight Chance Rain Showers then Mostly Cloudy47° / 54°SW 13 mph
Monday NightPartly Cloudy then Slight Chance Rain Showers47° / 53°E 12 mph
Tuesday NightChance Rain Showers48° / 54°S 16 mph
Wednesday NightSlight Chance Rain Showers48° / 55°SW 14 mph

Weather Highlights

Summer High: the July high is around 76 degrees
Winter Low: the January low is 25
Rain: averages 46 inches of rain a year
Snow: averages 23 inches of snow a year


BESTPLACES COMFORT INDEX

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

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
January38° 25°
February40° 26°
March45° 31°
April52° 39°
May61° 47°
June70° 56°
July76° 63°
August76° 62°
September71° 57°
October61° 47°
November53° 39°
December44° 30°
Hot, Freezing, Rainy, Snowy Days: Nantucket
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January024113
February02293
March017112
April03110
May00110
June0090
July0070
August0080
September0080
October00100
November05110
December018122

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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