January weather forecast
Edgartown, MA

Classy and luxurious houses right on the harbor in Edgartown, Massachusetts, with long piers onto the water
Classy and luxurious houses right on the harbor in Edgartown, Massachusetts, with long piers onto the water

Weather in January

January, the same as December, is a wintry winter month in Edgartown, Massachusetts, with average temperature varying between 30.6°F (-0.8°C) and 38.7°F (3.7°C).

Temperature

The coldest month is January, with an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 30.6°F (-0.8°C).

Humidity

The average relative humidity in Edgartown is 75%.

Rainfall

In Edgartown, Massachusetts, during January, the rain falls for 9 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, in Edgartown, there are 146.4 rainfall days, and 25.47" (647mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. In Edgartown, during 5.3 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, in Edgartown, there are 18.3 snowfall days, and 3.94" (100mm) of snow is accumulated.

Ocean temperature

In Edgartown, the average seawater temperature in January is 41.4°F (5.2°C).
Note: Swimming in 41.4°F (5.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Edgartown, the average length of the day in January is 9.6h.

Sunshine

In January, the average sunshine is 5h.

UV index

Months with the lowest UV index in Edgartown, Massachusetts, are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Edgartown?

January is the coldest month in Edgartown, Massachusetts, with an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 30.6°F (-0.8°C).

What is the average humidity in January in Edgartown?

The average relative humidity in January is 75%.

How much does it rain in Edgartown in January?

In Edgartown, in January, it is raining for 9 days, with typically 2.09" (53mm) of accumulated precipitation.

How much does it snow in Edgartown in January?

In Edgartown, in January, during 5.3 snowfall days, 0.94" (24mm) of snow is typically accumulated.

What is the water temperature in January in Edgartown?

In Edgartown, Massachusetts, the average seawater temperature in January is 41.4°F (5.2°C). Swimming in 41.4°F (5.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Edgartown have in January?

In January, the average length of the day is 9.6h.

How long on average sun shines in January in Edgartown?

In January, the average sunshine is 5h.

What are the months with the lowest UV index in Edgartown?

Months with the lowest UV index in Edgartown, Massachusetts, are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in January in Edgartown?

In Edgartown, Massachusetts, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in January
Edgartown, MA

Average temperature in January - Edgartown, MA
  • Average high temperature in January: 38.7°F

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in January: 30.6°F

The month with the highest average low temperature is August (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in January
Edgartown, MA

Average pressure in January - Edgartown, MA
  • Average pressure in January: 30"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in January
Edgartown, MA

Average wind speed in January - Edgartown, MA
  • Average wind speed in January: 16.2mph

The windiest month (with the highest average wind speed) is January (16.2mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).

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Average humidity in January
Edgartown, MA

Average humidity in January - Edgartown, MA
  • Average humidity in January: 75%

Months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in January
Edgartown, MA

Average rainfall in January - Edgartown, MA
  • Average rainfall in January: 2.09"

The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are August and November (1.73").

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Average rainfall days in January
Edgartown, MA

Average rainfall days in January - Edgartown, MA
  • Average rainfall days in January: 9 days

The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is February (8.6 days).

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Average snowfall in January
Edgartown, MA

Average snowfall in January - Edgartown, MA
  • Average snowfall in January: 0.94"

The month with the highest snowfall is March (1.18").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Edgartown, MA

Average snowfall days in January - Edgartown, MA
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is January (5.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in January
Edgartown, MA

Average sea temperature in January - Edgartown, MA
  • Average sea temperature in January: 41.2°F

The best month for swimming (with the highest average sea temperature) is August (68.5°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).

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Average daylight in January /
Average sunshine in January
Edgartown, MA

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

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in January: 5h

The month with the most sunshine is August (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in January
Edgartown, MA

Average sunshine days in January - Edgartown, MA
  • Average sunshine days in January: 15.1 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is April (13.5 days).

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Average UV index in January
Edgartown, MA

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

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Edgartown, MA

Average cloud cover in January - Edgartown, MA
  • Average cloud cover in January: 47

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in January
Edgartown, MA

Average visibility in January - Edgartown, MA
  • Average visibility in January: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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