January weather forecast and climate
Nantucket, MA

What is the coldest month in Nantucket?

January is the coldest month in Nantucket, Massachusetts, with an average high-temperature of 38.1°F (3.4°C) and an average low-temperature of 25.2°F (-3.8°C).

What is the temperature in January in Nantucket?

The average high-temperature, in January, in Nantucket, Massachusetts, is 38.1°F (3.4°C), while the average low-temperature is 25.2°F (-3.8°C).

How many days does it rain in January in Nantucket?

In Nantucket, in January, it is raining for 12 days, with typically 3.6" (91.7mm) of accumulated precipitation.

How much does it snow in Nantucket in January?

During January, Nantucket regularly aggregates up to 7.4" (188mm) of snow.
Average temperature in January - Nantucket, MA
  • Average high temperature in January: 38.1°F

The warmest month (with the highest average high temperature) is July (75.1°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in January: 25.1°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (25.1°F).

Average rainfall in January - Nantucket, MA
  • Average rainfall in January: 3.6"

The wettest month (with the highest rainfall) is November (4.4").
The driest month (with the lowest rainfall) is February (2.7").

Average rainfall days in January - Nantucket, MA
  • Average rainfall days in January: 12 days

The month with the highest number of rainy days is December (13 days).
The month with the lowest number of rainy days is July (7 days).

Average snowfall in January - Nantucket, MA
  • Average snowfall in January: 7.4"

The month with the highest snowfall is February (8.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average sea temperature in January - Nantucket, MA
  • Average sea temperature in January: 40.5°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).

Average daylight in January / Average sunshine in January - Nantucket, MA
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 5h

The month with most sunshine is June (Average sunshine: 9h).
Months with least sunshine are January, November and December (Average sunshine: 5).

Average UV index in January - Nantucket, MA
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 1).

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