July weather forecastDuluth, MN
July
Weather in July
July stands as the climatic culmination of summer in Duluth, characterized by the year's hottest temperatures and longest hours of sunshine. The city basks in warm weather, paving the way for a myriad of outdoor activities. This period's warm, comforting temperatures also cause a considerable surge in sea temperature. Accompanied by the highest UV index of the year, July requires extra precautions against sunburns. Coincidentally, July's average high temperature recorded is the year's highest at 77.4°F (25.2°C).Temperature
July, on average, is the warmest month in Duluth, registering a high temperature of 77.4°F (25.2°C) and a low of 57.6°F (14.2°C).Humidity
The average relative humidity in July in Duluth is 75%.Rainfall
The month with the most rainfall in Duluth is July, when the rain falls for 16.4 days and typically aggregates up to 3.03" (77mm) of precipitation.Snowfall
In Duluth, snow does not fall in June through September.Ocean temperature
In Duluth, in July, the average water temperature is 48.2°F (9°C).Note: Immersing oneself in 48.2°F (9°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In July, the average length of the day in Duluth is 15h and 25min.On the first day of the month, sunrise is at 5:18 am and sunset at 9:06 pm. On the last day of July, sunrise is at 5:48 am and sunset at 8:41 pm CDT.
Sunshine
The month with the most sunshine is July, with an average of 10h of sunshine.UV index
July is the month with the highest UV index in Duluth, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 6 in July translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Duluth, MN
- Average high temperature in July: 77.4°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (16.3°F).
- Average low temperature in July: 57.6°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (3.9°F).
Average pressure in July
Duluth, MN
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in July
Duluth, MN
- Average wind speed in July: 6.6mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in July
Duluth, MN
- Average humidity in July: 75%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in July
Duluth, MN
- Average rainfall in July: 3.03"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in July
Duluth, MN
- Average rainfall days in July: 16.4 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in July
Duluth, MN
- Average snowfall in July: 0"
The month with the highest snowfall is December (7.72").
The months with the least snowfall are June, July, August and September (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 (20.1 days).
The months with the least snowfall days are June, July, August and September (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).
The 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: 15h and 24min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in July: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in July
Duluth, MN
- Average sunshine days in July: 11.6 days
The month with the most sunshine days is November (13.7 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in July
Duluth, MN
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in July
Duluth, MN
- Average cloud cover in July: 34
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in July
Duluth, MN
- Average visibility in July: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
