Weather in Cheyenne in September
Cheyenne, United States averages a high of 22.7°C (72.9°F) and low of 9.5°C (49.1°F) in September, with 6 rain days and 10.9 hours of daily sunshine. Travel score: 84.8/100 (Excellent). The best time to visit Cheyenne is August.
High
23°C73°F
Low
10°C49°F
🌧️
6
rain days
☀️
10.9
hrs/day sunshine
💧
47%
humidity
85— Excellent
September in Cheyenne is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Cheyenne?
How much does it rain in Cheyenne in September?
Cheyenne receives an average of 34.7mm of rainfall across 6 rainy days in September. The annual total is 421.1mm.
What should I pack for Cheyenne in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 23°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 13°C from day to night
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
Compare Cheyenne
Popular comparisons:
How can I plan my trip to Cheyenne?
What other cities are near Cheyenne?
What are other popular cities in United States?
What is the weather like in other months in Cheyenne?
Data based on 1994–2024 averages · Last updated: 2024-12-31