January weather forecast
Eastham, MA

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Weather in January

January, like December, in Eastham, Massachusetts, is an icy winter month, with an average temperature fluctuating between 38.7°F (3.7°C) and 31.6°F (-0.2°C).

Temperature

With its high average temperature of 38.7°F (3.7°C) and a low of 31.6°F (-0.2°C), January is regarded as the coldest month.

Humidity

The average relative humidity in January in Eastham is 75%.

Rainfall

In January, in Eastham, Massachusetts, the rain falls for 8.9 days. Throughout January, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 136.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Eastham, during January, snow falls for 6.1 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, in Eastham, there are 22.1 snowfall days, and 2.95" (75mm) of snow is accumulated.

Daylight

In Eastham, the average length of the day in January is 9h and 33min.
On the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of January, sunrise is at 6:53 am and sunset at 4:53 pm EST.

Sunshine

In Eastham, the average sunshine in January is 4.5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What are the coldest months in Eastham?

January is the coldest month in Eastham, with an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 31.6°F (-0.2°C).

How cold is January in Eastham?

In January, the average high-temperature and low-temperature are 38.7°F (3.7°C) and 31.6°F (-0.2°C) respectively.

What is the average humidity in January in Eastham?

In Eastham, Massachusetts, the average relative humidity in January is 75%.

How many days does it rain in January in Eastham?

In Eastham, during January, the rain falls for 8.9 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How much does it snow in Eastham in January?

In Eastham, Massachusetts, during January, snow falls for 6.1 days and regularly aggregates up to 0.91" (23mm) of snow.

How many hours of daylight does Eastham have in January?

In January, the average day length is 9h and 33min.

When is the sunrise / sunset in January in Eastham?

In January, on the first day of the month, sunrise is at 7:07 am and sunset at 4:19 pm. On the last day of the month, in Eastham, sunrise is at 6:53 am and sunset at 4:53 pm EST.

How long on average sun shines in January in Eastham?

In January, the average sunshine duration in Eastham is 4.5h.

What is the month with the lowest UV index in Eastham?

The months with the lowest UV index in Eastham are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in January in Eastham?

The average daily maximum UV index in January in Eastham, Massachusetts, is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Eastham, MA

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

The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in January: 31.6°F

The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).

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Average pressure in January
Eastham, MA

Average pressure in January - Eastham, MA
  • Average pressure in January: 29.99"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Eastham, MA

Average wind speed in January - Eastham, MA
  • Average wind speed in January: 18.5mph

The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).

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Average humidity in January
Eastham, MA

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

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in January
Eastham, MA

Average rainfall in January - Eastham, MA
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").

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Average rainfall days in January
Eastham, MA

Average rainfall days in January - Eastham, MA
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in January
Eastham, MA

Average snowfall in January - Eastham, MA
  • Average snowfall in January: 0.91"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Eastham, MA

Average snowfall days in January - Eastham, MA
  • Average snowfall days in January: 6.1 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Eastham, MA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

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Average sunshine days in January
Eastham, MA

Average sunshine days in January - Eastham, MA
  • Average sunshine days in January: 13.3 days

The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).

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Average UV index in January
Eastham, MA

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

The months with the highest UV index are July and August (UV index 6).
The 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
Eastham, MA

Average cloud cover in January - Eastham, MA
  • Average cloud cover in January: 53

The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in January
Eastham, MA

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

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

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Eastham, Massachusetts, USA

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