Duluth climate

Typical historical weather for Duluth, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Duluth.

Annual average

17.1°C

across all months

Warmest month

31.2°C

Jul average high

Coolest month

1.9°C

Jan average low

Annual rainfall

1404mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

36.6°C

29 July 2025

Coldest day

-14.2°C

24 December 2022

Wettest day

91.1mm

17 September 2020

Windiest day

9.2m/s

11 September 2017