Monthly climate averages for Duluth, United States. Based on 10-year ERA5 reanalysis data.
Dfb Warm-Summer Continental
Climate OverviewDuluth, United States in July has warm conditions, with highs averaging 24.2°C (76°F). Rain falls on about 10 days this month.
This month falls at the middle of Summer.
Temperatures remain fairly steady throughout July, with daily highs around 24°C (75°F).
July sees fairly even rainfall, totalling about 92 mm across the month.
The warmest days tend to fall around the 25th, averaging 25.2°C (77°F).
Compared to June, this month is about 4°C warmer with 1 fewer rainy days.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 24°C (76°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
1 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -5°C / -12°C | -11°C / -18°C | 6days (24 mm) Good | 5.2h Fair | 77% Humid | 1.8 Low | Poor | View Details |
| February | -4°C / -11°C | -9°C / -18°C | 7days (31 mm) Good | 7.1h Good | 73% Muggy | 2.9 Moderate | Poor | View Details |
| March | 2°C / -4°C | -2°C / -10°C | 8days (61 mm) Wet | 8.1h Good | 73% Muggy | 3.9 Moderate | Poor | View Details |
| April | 7°C / 0°C | 3°C / -5°C | 12days (96 mm) Wet | 8.5h Good | 73% Muggy | 4.5 Moderate | Poor | View Details |
| May | 14°C / 7°C | 12°C / 3°C | 11days (96 mm) Wet | 10.5h Excellent | 72% Muggy | 5.9 High | Fair | View Details |
| June best | 21°C / 13°C | 21°C / 11°C | 11days (92 mm) Wet | 11.7h Excellent | 75% Muggy | 6.2 High | Excellent | View Details |
| July best | 24°C / 17°C | 26°C / 17°C | 10days (92 mm) Wet | 12.3h Excellent | 76% Humid | 6.7 High | Excellent | View Details |
| August best | 24°C / 18°C | 25°C / 17°C | 10days (93 mm) Wet | 10.8h Excellent | 77% Humid | 5.8 High | Excellent | View Details |
| September best | 21°C / 15°C | 20°C / 13°C | 10days (114 mm) Wet | 8.8h Good | 76% Humid | 4.5 Moderate | Excellent | View Details |
| October | 13°C / 8°C | 10°C / 4°C | 12days (94 mm) Wet | 6.6h Fair | 72% Muggy | 3.1 Moderate | Fair | View Details |
| November | 5°C / 0°C | 0°C / -6°C | 9days (64 mm) Wet | 5.1h Fair | 72% Muggy | 1.9 Low | Poor | View Details |
| December | -2°C / -8°C | -7°C / -14°C | 9days (66 mm) Wet | 4.3h Fair | 79% Humid | 1.4 Low | Poor | View Details |
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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