March weather forecast and climate
Duluth, MN

What is the temperature in March in Duluth?

The average high-temperature, in March, in Duluth, is 34.3°F (1.3°C), while the average low-temperature is 17.4°F (-8.1°C).

How much does it rain in Duluth in March?

In Duluth, in March, it is raining for 9.7 days, with typically 1.5" (37.8mm) of accumulated precipitation.

How much does it snow in Duluth in March?

In Duluth, Minnesota, during March, snow falls for 8.7 days and regularly aggregates up to 13.2" (335.3mm) of snow.

What are the months with the coldest sea water in Duluth?

Months with the coldest seawater in Duluth are January through April, with an average sea temperature of 35.6°F (2°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the sea temperature in March in Duluth?

In March, in Duluth, Minnesota, 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 March - Duluth, MN
  • Average high temperature in March: 34.4°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 March: 17.5°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 March - Duluth, MN
  • Average humidity in March: 69.3%

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 March - Duluth, MN
  • Average rainfall in March: 1.5"

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 March - Duluth, MN
  • Average rainfall days in March: 9.7 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 March - Duluth, MN
  • Average snowfall in March: 13.2"

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 March - Duluth, MN
  • Average snowfall days in March: 8.7 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 March - Duluth, MN
  • Average sea temperature in March: 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 March / Average sunshine in March - Duluth, MN
  • Average daylight in March: 12h

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 March: 6.2h

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 March - Duluth, MN
  • Average UV index in March: 3

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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