Is Duluth hot in May?
Days are typically cool at 14.1°C, while nights average 4.9°C.
United States · 1991–2020 normal
Typical May weather in Duluth: 14.1°C by day, 4.9°C at night, 86 mm of rain over 9.4 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, May scores 36 out of 100 (August leads the year at 85). Daylight is calculated as 15 h 00 from latitude 46.78°. Open-water sea temperature is 3.3°C (20 km from the place centre).
May at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically cool at 14.1°C, while nights average 4.9°C.
The measured monthly average is 86 mm across about 9 wet days.
There are about 15 h 00 between sunrise and sunset at mid-month, calculated from the place latitude.
May ranks 5 of 12 in our weather comparison; August ranks first.
The evidence behind this page
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The weather comparison for Duluth is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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