July weather forecast and climate
Duluth, MN

What is the warmest month in Duluth?

With an average high-temperature of 76.3°F (24.6°C) and an average low-temperature of 55.4°F (13°C), July is the warmest month.

What is the temperature in July in Duluth?

The average high-temperature, in July, in Duluth, Minnesota, is 76.3°F (24.6°C), while the average low-temperature is 55.4°F (13°C).

How many days does it rain in July in Duluth?

In July, the rain falls for 11.8 days. Throughout July, 3.9" (97.8mm) of precipitation is accumulated.

What is the water temperature in July in Duluth?

In Duluth, in July, the average water temperature is 48.2°F (9°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.
Average temperature in July - Duluth, MN
  • Average high temperature in July: 76.3°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 July: 55.4°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 July - Duluth, MN
  • Average humidity in July: 70.9%

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 July - Duluth, MN
  • Average rainfall in July: 3.9"

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 July - Duluth, MN
  • Average rainfall days in July: 11.8 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 July - Duluth, MN
  • Average snowfall in July: 0"

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 July - Duluth, MN
  • Average snowfall days in July: 0 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 July - Duluth, MN
  • Average sea temperature in July: 48°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 July / Average sunshine in July - Duluth, MN
  • Average daylight in July: 15.4h

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 July: 9.9h

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 July - Duluth, MN
  • Average UV index in July: 8

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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