January weather forecast
Dennis Port, MA

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Weather in January

January, the same as December, is a wintry winter month in Dennis Port, Massachusetts, with an average temperature ranging between max 38.5°F (3.6°C) and min 30.6°F (-0.8°C).

Temperature

Dennis Port's January weather reaches an average high of 38.5°F (3.6°C) and an average low of 30.6°F (-0.8°C), making it the coldest month.

Humidity

The average relative humidity in January in Dennis Port is 75%.

Rainfall

In Dennis Port, during January, the rain falls for 8.4 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 129 rainfall days, and 14.21" (361mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

Sunshine

In January, the average sunshine is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In January, the UV index of 2 transforms into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the coldest month?

Dennis Port's coldest month, January, generally records average temperatures ranging from a high of 38.5°F (3.6°C) to a low of 30.6°F (-0.8°C).

How cold is it in Dennis Port in January?

In January, the average high-temperature and low-temperature are 38.5°F (3.6°C) and 30.6°F (-0.8°C) respectively.

What is the average humidity in January in Dennis Port?

The average relative humidity in January is 75%.

How much does it rain in January?

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

What is the snowiest month?

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 Dennis Port, during January, snow falls for 6.4 days and regularly aggregates up to 0.87" (22mm) of snow.

How many hours of daylight does Dennis Port have in January?

The average day length in January is 9h and 34min.

What time are sunrise and sunset in January in Dennis Port?

In January, on the first day of the month, 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 many hours of sunshine does Dennis Port have in January?

In Dennis Port, the average sunshine duration in January is 4.8h.

What is the month with 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 reading in January?

In Dennis Port, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Dennis Port, MA

Average temperature in January - Dennis Port, 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
Dennis Port, MA

Average pressure in January - Dennis Port, 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
Dennis Port, MA

Average wind speed in January - Dennis Port, 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
Dennis Port, MA

Average humidity in January - Dennis Port, 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
Dennis Port, MA

Average rainfall in January - Dennis Port, 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
Dennis Port, MA

Average rainfall days in January - Dennis Port, 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
Dennis Port, MA

Average snowfall in January - Dennis Port, 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
Dennis Port, MA

Average snowfall days in January - Dennis Port, 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
Dennis Port, MA

Average daylight in January / Average sunshine in January - Dennis Port, 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
Dennis Port, MA

Average sunshine days in January - Dennis Port, 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
Dennis Port, MA

Average UV index in January - Dennis Port, 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
Dennis Port, MA

Average cloud cover in January - Dennis Port, 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
Dennis Port, MA

Average visibility in January - Dennis Port, 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).

Dennis Port, Massachusetts, USA

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