January weather forecast
West Harwich, MA

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Weather in January

January, like December, in West Harwich, Massachusetts, is an icy winter month, with an average temperature ranging between max 38.5°F (3.6°C) and min 30.6°F (-0.8°C).

Temperature

In West Harwich, the lowest temperatures are generally noted in January, averaging a high of 38.5°F (3.6°C) and a low of 30.6°F (-0.8°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

In West Harwich, in January, during 8.4 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 129 rainfall days, and 14.21" (361mm) of precipitation is accumulated.

Snowfall

January through April and December are months with snowfall. The month with the most snowfall is January, when snow falls for 6.4 days and typically aggregates up to 0.87" (22mm) of snow.

Daylight

The average length of the day in January is 9h and 34min.
On the first day of January, sunrise is at 7:07 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:54 pm EST.

Sunshine

The average sunshine in January is 4.8h.

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 health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January, on average, is the coldest month, registering a high temperature of 38.5°F (3.6°C) and a low of 30.6°F (-0.8°C).

Is January cold?

The high-temperature in West Harwich during January is 38.5°F (3.6°C) and the low-temperature is 30.6°F (-0.8°C).

What is the average humidity in January?

The average relative humidity in January is 75%.

How much does it rain in January?

In West Harwich, during January, the rain falls for 8.4 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When does it snow the most in West Harwich?

January is the month with the most snowfall. Snow falls for 6.4 days and accumulates 0.87" (22mm) of snow.

How much does it snow in January?

In January, it is snowing for 6.4 days. Throughout January, 0.87" (22mm) of snow is accumulated.

How many hours of daylight does West Harwich have in January?

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

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:07 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:54 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 4.8h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from 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
West Harwich, MA

Average temperature in January - West Harwich, MA
  • Average high temperature in January: 38.5°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in January: 30.6°F

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in January
West Harwich, MA

Average pressure in January - West Harwich, MA
  • Average pressure in January: 30"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
West Harwich, MA

Average wind speed in January - West Harwich, MA
  • Average wind speed in January: 16.8mph

The windiest month (with the highest average wind speed) is January (16.8mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).

Average humidity in January
West Harwich, MA

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

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

Average rainfall in January
West Harwich, MA

Average rainfall in January - West Harwich, MA
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is August (0.94").

Average rainfall days in January
West Harwich, MA

Average rainfall days in January - West Harwich, MA
  • Average rainfall days in January: 8.4 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in January
West Harwich, MA

Average snowfall in January - West Harwich, MA
  • Average snowfall in January: 0.87"

The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in January
West Harwich, MA

Average snowfall days in January - West Harwich, MA
  • Average snowfall days in January: 6.4 days

The month with the highest number of snowfall days is January (6.4 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
West Harwich, MA

Average daylight in January / Average sunshine in January - West 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 5min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in January
West Harwich, MA

Average sunshine days in January - West Harwich, MA
  • Average sunshine days in January: 15.4 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (14.3 days).

Average UV index in January
West Harwich, MA

Average UV index in January - West 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
West Harwich, MA

Average cloud cover in January - West Harwich, MA
  • Average cloud cover in January: 48

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in January
West Harwich, MA

Average visibility in January - West 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).

West Harwich, Massachusetts, USA

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