Weather in Grand Forks in September
Grand Forks, United States averages a high of 20.8°C (69.4°F) and low of 11.3°C (52.3°F) in September, with 7 rain days and 9.5 hours of daily sunshine. Travel score: 80.2/100 (Excellent). The best time to visit Grand Forks is August.
High
21°C69°F
Low
11°C52°F
🌧️
7
rain days
☀️
9.5
hrs/day sunshine
💧
68%
humidity
80— Excellent
September in Grand Forks is mild and mostly dry — excellent conditions for exploring.
What are the average temperatures in Grand Forks?
How much does it rain in Grand Forks in September?
Grand Forks receives an average of 64.5mm of rainfall across 7 rainy days in September. The annual total is 620.4mm.
What should I pack for Grand Forks in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 21°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting United States in September?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31