Denver Weather in January
United States · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Denver sees average temperatures ranging from a low of -9.0°C (15.8°F) to a high of 4.7°C (40.5°F), with a mean of -2.8°C (27.0°F). Compared to the annual average of 10.0°C (50.0°F), this month is 12.8°C cooler than the yearly norm. Precipitation averages 18.7mm, making it approximately 15.0mm drier than the monthly average of 34.0mm. The city receives an average of 7.7 hours of sunshine per day during January, with relative humidity averaging 60.7%. Wind speeds reach an average maximum of 15.9 km/h. Snowfall averages 12.9cm during January, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Denver, with drier-than-average conditions compared to the rest of the year.
Denver's mile-high altitude creates a unique climate with low humidity and intense sunshine. I've studied the data and found that the city receives over 300 days of sunshine annually, making it one of the sunniest major US cities. The best time for outdoor activities is May to October, when temperatures are warm and the Rocky Mountains are accessible. The winters are cold but dry, with plenty of sunshine.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 0.5°C (32.9°F) | -2.8°C (27.0°F) | -3.6°C (25.5°F) |
| Rainfall | 16.4mm | 18.7mm | 32.8mm |
| Sunshine | 7.8 hrs | 7.7 hrs | 8.8 hrs |
| Humidity | 53.0% | 60.7% | 62.5% |
| Wind | 16.0 km/h | 15.9 km/h | 17.5 km/h |
| Rainy Days | 1.8 | 1.0 | 0.8 |
| Snowfall | 9.7 cm | 12.9 cm | 21.1 cm |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Denver in January, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Denver in January?
The average temperature in Denver during January ranges from -9.0°C (15.8°F) to 4.7°C (40.5°F), with a mean of -2.8°C (27.0°F).
How much does it rain in Denver in January?
Denver receives an average of 18.7mm of precipitation in January, spread across approximately 1.0 rainy days.
What should I pack for Denver in January?
Based on January weather data, pack heavy winter clothing, thermal layers, and a warm coat.
Is January a good time to visit Denver?
January is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Denver
Cities with Similar January Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 39.74°, -104.99°. Timezone: America/Denver. Last updated: 2026-07-30.