January weather forecast
Lynn, MA

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Large rocks on the shores of the coast of Lynn Massachusetts
Large rocks on the shores of the coast of Lynn Massachusetts

Weather in January

January in Lynn, Massachusetts sets the stage for a typical winter in the northeastern United States, with chill in the air and snow on the ground adding a festive touch. The weather changes from mild to severe, with the temperature plunging to 23.4°F (-4.8°C) and the city blanketed by an average snowfall of 2.76" (70mm). The daylight lasts for only 9.5 hours, with much of the day shrouded in clouds. Wind speeds are at their peak, giving a biting edge to the cold weather. This month is marked by the lowest sea temperatures, prompting many to favor indoor activities.

Temperature

Lynn's temperature records reveal January as the coldest month, marked by average highs of 34.2°F (1.2°C) and lows of 23.4°F (-4.8°C).

Humidity

The average relative humidity in January is 76%.

Rainfall

In Lynn, during January, the rain falls for 7.1 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Lynn, during the entire year, the rain falls for 144.9 days and collects up to 27.91" (709mm) of precipitation.

Snowfall

Months with snowfall in Lynn are January through April, October through December. In Lynn, during January, snow falls for 7.7 days and regularly aggregates up to 2.76" (70mm) of snow. Throughout the year, there are 29.9 snowfall days, and 15.59" (396mm) of snow is accumulated.

Ocean temperature

In Lynn, in January, the average water temperature is 41.5°F (5.3°C).
Note: Swimming in 41.5°F (5.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The average length of the day in January is 9h and 29min.
On the first day of January, sunrise is at 7:13 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:55 pm EST.

Sunshine

In January, the average sunshine is 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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What are the coldest months?

Lynn's temperature records reveal January as the coldest month, marked by average highs of 34.2°F (1.2°C) and lows of 23.4°F (-4.8°C).

How cold is January?

Lynn in January has an average high-temperature of 34.2°F (1.2°C) and an average low-temperature of 23.4°F (-4.8°C).

What is the average humidity in January?

In Lynn, the average relative humidity in January is 76%.

How much does it rain in January?

In Lynn, in January, it is raining for 7.1 days, with typically 2.24" (57mm) of accumulated precipitation.

How much does it snow in January?

In Lynn, in January, snow falls for 7.7 days, with typically accumulated 2.76" (70mm) of snow.

How cold is the water in January?

In Lynn, in January, the average water temperature is 41.5°F (5.3°C). Swimming in 41.5°F (5.3°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.

How many hours of daylight does Lynn have in January?

In Lynn, the average day length in January is 9h and 29min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:13 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:55 pm EST.

How long on average sun shines in January?

In Lynn, the average sunshine duration in January is 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?

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 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
Lynn, MA

Average temperature in January - Lynn, MA
  • Average high temperature in January: 34.2°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in January: 23.4°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in January
Lynn, MA

Average pressure in January - Lynn, 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 (29.92"Hg).

Average wind speed in January
Lynn, MA

Average wind speed in January - Lynn, MA
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in January
Lynn, MA

Average humidity in January - Lynn, MA
  • Average humidity in January: 76%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (70%).

Average rainfall in January
Lynn, MA

Average rainfall in January - Lynn, MA
  • Average rainfall in January: 2.24"

The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in January
Lynn, MA

Average rainfall days in January - Lynn, MA
  • Average rainfall days in January: 7.1 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in January
Lynn, MA

Average snowfall in January - Lynn, MA
  • Average snowfall in January: 2.76"

The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Lynn, MA

Average snowfall days in January - Lynn, MA
  • Average snowfall days in January: 7.7 days

The months with the highest number of snowfall days are January and February (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in January
Lynn, MA

Average sea temperature in January - Lynn, MA
  • Average sea temperature in January: 41.5°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).

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

Average daylight in January / Average sunshine in January - Lynn, MA
  • Average daylight in January: 9h and 3min

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 6min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in January
Lynn, MA

Average sunshine days in January - Lynn, MA
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in January
Lynn, MA

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

The months with the highest UV index are June, 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
Lynn, MA

Average cloud cover in January - Lynn, MA
  • Average cloud cover in January: 46

The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
Lynn, MA

Average visibility in January - Lynn, 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).

Lynn, Massachusetts, USA

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