January weather forecast and climate
Duluth, MN

What is the coldest month in Duluth?

With an average high-temperature of 18.9°F (-7.3°C) and an average low-temperature of 1.6°F (-16.9°C), January is the coldest month.

What is the temperature in January in Duluth?

In Duluth, in January, the average high-temperature is 18.9°F (-7.3°C), and the average low-temperature is 1.6°F (-16.9°C).

How many days does it rain in January in Duluth?

In Duluth, Minnesota, in January, during 10.3 rainfall days, typically, 1" (24.4mm) of precipitation is accumulated.

How many days does it snow in January in Duluth?

In January, in Duluth, it is snowing for 12.9 days. Throughout January, 19.4" (492.8mm) of snow is accumulated.

What is the snowiest month in Duluth?

The month with the most snowfall in Duluth is January when snow falls for 12.9 days and typically aggregates up to 19.4" (492.8mm) of snow.

What months are the sea coldest in Duluth?

January through April, with an average sea temperature of 35.6°F (2°C), are months with the coldest seawater in Duluth, Minnesota. For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the sea temperature in January in Duluth?

In January, the average sea temperature is 35.6°F (2°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
Average temperature in January - Duluth, MN
  • Average high temperature in January: 18.9°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in January: 1.5°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (1.5°F).

Average humidity in January - Duluth, MN
  • Average humidity in January: 72%

The month with the highest relative humidity is December (76.3%).
The month with the lowest relative humidity is May (62.7%).

Average rainfall in January - Duluth, MN
  • Average rainfall in January: 1"

The wettest month (with the highest rainfall) is June (4.2").
The driest month (with the lowest rainfall) is February (0.8").

Average rainfall days in January - Duluth, MN
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is June (12.6 days).
The month with the lowest number of rainy days is February (8.5 days).

Average snowfall in January - Duluth, MN
  • Average snowfall in January: 19.4"

The month with the highest snowfall is January (19.4").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in January - Duluth, MN
  • Average snowfall days in January: 12.9 days

The month with the highest number of snowfall days is January (12.9 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average sea temperature in January - Duluth, MN
  • Average sea temperature in January: 36°F

The best month for swimming (with the highest average sea temperature) is August (61°F).
Coldest months (with the lowest average sea temperature) are January, February, March and April (36°F).

Average daylight in January / Average sunshine in January - Duluth, MN
  • Average daylight in January: 9.1h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in January: 4.3h

The month with most sunshine is July (Average sunshine: 9.9h).
Months with least sunshine are November and December (Average sunshine: 3.3).

Average UV index in January - Duluth, MN
  • Average UV index in January: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).

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