Boulder County (Boulder)
January
Weather in Boulder County, Colorado for January 2027
Your guide to Boulder County weather in January - trends and predictions
With an average of 4 snowy days, Boulder County usually enjoys a light touch of snow in January.
Is January a good time to visit Boulder County? check out the best time to travel to Boulder County page.
✨ Is January a good time to visit Boulder County? – Ask the AI Weatherman
Snow Forecast ❄️
More
25
Dry days
2
Rainy days
4
Snow days
3°/-7°
Temperatures
18 km/h
Avg max wind
53 %
Avg humidity
Boulder County Weather January
Move between months or click on a day
Temperatures trend during January in Boulder County
See the weather trend as well as the moving average line
January weather in Boulder County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 |  Overcast | 4° /-2° | 0.2 mm | 0 cm | |
| Jan. 2 |  Light freezing rain | 7° /-1° | 0.3 mm | 0 cm | |
| Jan. 3 |  Sunny | 10° /0° | 0 mm | 0 cm | |
| Jan. 4 | Light freezing rain | 7° /0° | 0.1 mm | 0 cm | |
| Jan. 5 | Light freezing rain | 6° /-3° | 0.2 mm | 0 cm | |
| Jan. 6 |  Cloudy | 4° /-2° | 0.4 mm | 0 cm | |
| Jan. 7 |  Light snow | 3° /-6° | 2 mm | 0.6 cm | |
| Jan. 8 |  Moderate snow | 4° /-8° | 10.6 mm | 6.6 cm | |
| Jan. 9 | Light freezing rain | -1° /-8° | 8.4 mm | 5.6 cm | |
| Jan. 10 | Cloudy | 3° /-10° | 0 mm | 0 cm | |
| Jan. 11 | Cloudy | 7° /-3° | 0 mm | 0 cm | |
| Jan. 12 | Overcast | 6° /-5° | 0 mm | 0 cm | |
| Jan. 13 | Sunny | 6° /-4° | 0 mm | 0 cm | |
| Jan. 14 | Sunny | 5° /-5° | 0 mm | 0 cm | |
| Jan. 15 | Sunny | 10° /-4° | 0 mm | 0 cm | |
| Jan. 16 | Sunny | 8° /-5° | 0 mm | 0 cm | |
| Jan. 17 | Light freezing rain | 2° /-10° | 1.8 mm | 0.9 cm | |
| Jan. 18 | Light freezing rain | -1° /-10° | 1.5 mm | 0.5 cm | |
| Jan. 19 | Light snow | -3° /-14° | 2.3 mm | 1.3 cm | |
| Jan. 20 | Overcast | -2° /-13° | 0.6 mm | 0 cm | |
| Jan. 21 | Cloudy | 4° /-13° | 0 mm | 0 cm | |
| Jan. 22 | Overcast | -1° /-11° | 0 mm | 0 cm | |
| Jan. 23 | Sunny | -4° /-13° | 0 mm | 0 cm | |
| Jan. 24 | Light freezing rain | -2° /-13° | 2 mm | 1.3 cm | |
| Jan. 25 | Light snow | -6° /-15° | 5.7 mm | 3.1 cm | |
| Jan. 26 | Light freezing rain | -1° /-15° | 0.2 mm | 0 cm | |
| Jan. 27 | Sunny | 5° /-9° | 0 mm | 0 cm | |
| Jan. 28 | Sunny | 5° /-8° | 0 mm | 0 cm | |
| Jan. 29 | Cloudy | 2° /-7° | 0 mm | 0 cm | |
| Jan. 30 | Cloudy | 6° /-5° | 0.1 mm | 0 cm | |
| Jan. 31 |  Partly cloudy | 10° /-2° | 0 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Boulder County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Boulder County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Boulder County in January - FAQ
What are the expected maximum and minimum temperatures in Boulder County during January?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Boulder County during January?
In January, Boulder County can expect light to moderate rainfall, totaling 36.4 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Boulder County in January 2027?
Boulder County experiences an average snowfall of 19.9 cm during January, occurring over 4 days.
What are the typical wind conditions in Boulder County during January?
The average wind speed in Boulder County during January is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Boulder County snow forecast January 2027
Track daily snowfall levels and discover Boulder County’s snowy potential this January ❄️
On average, Boulder County sees 4 snowy days during January, with approximately 19.9 cm of total snowfall.
January rainfall patterns in Boulder County
Explore the daily rainfall trends and prepare for Boulder Countys January weather 💧
Typically, Boulder County has 2 rainy days in January with a total of 36.4 mm of rainfall.
Top locations in Boulder County
Select a location for an accurate weather forecast
More Locations Quick links
More Boulder County weather pages
You are here
Found a mistake?
We appreciate your attention to details. Tell us here.