Weather in Longmont in January
Longmont, United States averages a high of 4.3°C (39.7°F) and low of -8.3°C (17.1°F) in January, with 5 rain days and 8.2 hours of daily sunshine. Travel score: 58.7/100 (Mixed). The best time to visit Longmont is August.
High
4°C40°F
Low
-8°C17°F
🌧️
5
rain days
☀️
8.2
hrs/day sunshine
💧
63%
humidity
59— Mixed
January in Longmont is cold and mostly dry — bring heavy winter clothing.
What are the average temperatures in Longmont?
How much does it rain in Longmont in January?
Longmont receives an average of 19.2mm of rainfall across 5 rainy days in January. The annual total is 472.8mm.
What should I pack for Longmont in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Heavy winter coat
Cold weather with highs around 4°C
🩳
Thermal base layers
Stay warm in freezing temperatures
🧤
Warm gloves
Cold nights around -8°C
🧣
Warm scarf
Protect against cold winds
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