Weather in Rancho Cucamonga in January
Rancho Cucamonga, United States averages a high of 17.3°C (63.1°F) and low of 6.1°C (43°F) in January, with 6 rain days and 8.6 hours of daily sunshine. Travel score: 77.1/100 (Good). The best time to visit Rancho Cucamonga is August.
High
17°C63°F
Low
6°C43°F
🌧️
6
rain days
☀️
8.6
hrs/day sunshine
💧
62%
humidity
77— Good
January in Rancho Cucamonga is mild and mostly dry — good for most activities.
What are the average temperatures in Rancho Cucamonga?
How much does it rain in Rancho Cucamonga in January?
Rancho Cucamonga receives an average of 86.2mm of rainfall across 6 rainy days in January. The annual total is 427.9mm.
What should I pack for Rancho Cucamonga in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 17°C
Recommended
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to United States in January?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31