January weather forecast
East Harwich, MA

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Weather in January

January, the same as December, is another cold winter month in East Harwich, Massachusetts, with an average temperature fluctuating between 31.6°F (-0.2°C) and 39°F (3.9°C).

Temperature

The months of January and February are noted for their lowest temperatures, with an average high-temperature of 39°F (3.9°C).

Humidity

The average relative humidity in January is 75%.

Rainfall

In East Harwich, in January, during 9.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In East Harwich, during the entire year, the rain falls for 142.4 days and collects up to 22.09" (561mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In East Harwich, in January, snow falls for 6 days, with typically accumulated 1.34" (34mm) of snow. Throughout the year, there are 20.8 snowfall days, and 4.37" (111mm) of snow is accumulated.

Daylight

In East Harwich, Massachusetts, the average length of the day in January is 9h and 34min.
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, in East Harwich, sunrise is at 6:53 am and sunset at 4:53 pm EST.

Sunshine

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 value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 in January translates into this advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January and February, with an average high-temperature of 39°F (3.9°C), are marked as the coldest months.

Is it cold during January?

In January, the average high-temperature and low-temperature are 39°F (3.9°C) and 31.6°F (-0.2°C) respectively.

What is the average humidity in January?

In East Harwich, the average relative humidity in January is 75%.

How many days does it rain in January?

In East Harwich, Massachusetts, during January, the rain falls for 9.5 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How much does it snow in January?

In East Harwich, in January, snow falls for 6 days, with typically accumulated 1.34" (34mm) of snow.

What is the average length of the day in January?

In East Harwich, the average day length in January is 9h and 34min.

When is the sunrise / sunset in January?

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

How many hours of sunshine does East Harwich have in January?

The average sunshine duration in January is 4.5h.

When is the lowest UV index?

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

What is the UV index intensity in January in East Harwich?

In East Harwich, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
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
East Harwich, MA

Average temperature in January - East Harwich, MA
  • Average high temperature in January: 39°F

The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).

  • Average low temperature in January: 31.6°F

The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in January
East Harwich, MA

Average pressure in January - East Harwich, 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).

Average wind speed in January
East Harwich, MA

Average wind speed in January - East Harwich, MA
  • Average wind speed in January: 18mph

The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).

Average humidity in January
East Harwich, MA

Average humidity in January - East Harwich, MA
  • Average humidity in January: 75%

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

Average rainfall in January
East Harwich, MA

Average rainfall in January - East Harwich, MA
  • Average rainfall in January: 1.69"

The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").

Average rainfall days in January
East Harwich, MA

Average rainfall days in January - East Harwich, MA
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in January
East Harwich, MA

Average snowfall in January - East Harwich, MA
  • Average snowfall in January: 1.34"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
East Harwich, MA

Average snowfall days in January - East Harwich, MA
  • Average snowfall days in January: 6 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
East Harwich, MA

Average daylight in January / Average sunshine in January - East Harwich, 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 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

Average sunshine days in January
East Harwich, MA

Average sunshine days in January - East Harwich, MA
  • Average sunshine days in January: 13 days

The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).

Average UV index in January
East Harwich, MA

Average UV index in January - East Harwich, 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).

Average cloud cover in January
East Harwich, MA

Average cloud cover in January - East Harwich, MA
  • Average cloud cover in January: 52

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in January
East Harwich, MA

Average visibility in January - East Harwich, 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).

East Harwich, Massachusetts, USA

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