Weather on Nantucket
The Gulf Stream makes the climate of offshore islands of Massachusetts, Martha's Vineyard and Nantucket, milder than than that of Massachusetts Bay, which is isolated from its effects by Cape Cod.
January
high 40of 4oc
low 26of -3oc
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May
high 62of 17oc
low 48of 9oc
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September
high 70of 21oc
low 66of 19oc
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February
high 41of 5oc
low 26of -3oc
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June
high 71of 22oc
low 58of 14oc
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October
high 59of 15oc
low 47of 8oc
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March
high 42of 6oc
low 32of 0oc
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July
high 78of 25oc
low 63of 17oc
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November
high 48of 9oc
low 37of 3oc
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April
high 53of 12oc
low 40of 4oc
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August
high 76of 24oc
low 61of 16oc
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December
high 40of 4oc
low 26of -3oc
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Average Monthly Water Temperatures
as compiled by Dan Kelliher
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Average Monthly Humidity
as compiled from city data
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