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

With average temperatures fluctuating between a high of 34.2°F (1.2°C) and a low of 23.4°F (-4.8°C), January stands out as the coldest month.

Humidity

The average relative humidity in January in Lynn is 76%.

Rainfall

In Lynn, in January, during 7.1 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. 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 are January through April, October through December. In Lynn, in January, during 7.7 snowfall days, 2.76" (70mm) of snow is typically accumulated. In Lynn, during the entire year, snow falls for 29.9 days and aggregates up to 15.59" (396mm) of snow.

Ocean temperature

In January, the average ocean temperature in Lynn is 41.5°F (5.3°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In Lynn, 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 Lynn, the average sunshine in January is 5h.

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 value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What are the coldest months in Lynn?

Lynn's coldest weather arrives in January, when temperatures average a high of 34.2°F (1.2°C) and a low of 23.4°F (-4.8°C).

How cold is it in Lynn in January?

An average high-temperature, in January, in Lynn, is 34.2°F (1.2°C) and the average low-temperature is 23.4°F (-4.8°C).

What is the average humidity in January in Lynn?

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

How much does it rain in Lynn 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 Lynn in January?

In Lynn, during January, snow falls for 7.7 days and regularly aggregates up to 2.76" (70mm) of snow.

How cold is the water in January in Lynn?

In Lynn, Massachusetts, in January, the average water temperature is 41.5°F (5.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Lynn have in January?

The average day length in January in Lynn, Massachusetts, is 9h and 29min.

What time are sunrise and sunset in January in Lynn?

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.

How many hours of sunshine does Lynn have in January?

The average sunshine duration in January is 5h.

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

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 intensity in January in Lynn?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
39.9°F 4.4°C
34.2°F 1.2°C
36.1°F 2.3°C
Average low temperature
30.2°F -1°C
23.4°F -4.8°C
24.6°F -4.1°C
Average pressure
30.03" 763mmHg
30" 762mmHg
29.98" 761mmHg
Average wind speed
10.3mph 16.6km/h
10.7mph 17.2km/h
10.4mph 16.7km/h
Average max. wind speed
10.9mph 17.5km/h
11.4mph 18.3km/h
11mph 17.7km/h
Average wind speed gusts
16.1mph 25.9km/h
16.9mph 27.2km/h
16.4mph 26.4km/h
Average humidity
76%
76%
77%
Average rainfall
2.99" 76mm
2.24" 57mm
2.28" 58mm
Average rainfall days
10.3
7.1
8.6
Average snowfall
3.43" 87mm
2.76" 70mm
4.61" 117mm
Average snowfall days
5.3
7.7
7.7
Average sea temperature
46.3°F 7.9°C
41.5°F 5.3°C
38.9°F 3.8°C
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 4min
5h 0min
4h 4min
Average sunshine days
16.1
17.8
13.8
Average UV index
2
2
2
Average cloud cover
49%
46%
50%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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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).

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Lynn, Massachusetts, USA

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