January

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Boulder Weather January

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December

February

Temperatures trend during January in Boulder

See the weather trend as well as the moving average line

January weather in Boulder day by day

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December February

Date	Weather	Temperatures	Rain	Snow
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
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Important Notice

Our weather forecast for Boulder 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 forecast closer to your planned date for the most up-to-date weather information.

Change Month

Boulder in January - FAQ

What are the expected maximum and minimum temperatures in Boulder 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 during January?

In January, Boulder 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 in January 2027?

Boulder experiences an average snowfall of 19.9 cm during January, occurring over 4 days.

What are the typical wind conditions in Boulder during January?

The average wind speed in Boulder during January is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Boulder snow forecast January 2027

Track daily snowfall levels and discover Boulder’s snowy potential this January ❄️

On average, Boulder sees 4 snowy days during January, with approximately 19.9 cm of total snowfall.

January rainfall patterns in Boulder

Explore the daily rainfall trends and prepare for Boulders January weather 💧

Typically, Boulder has 2 rainy days in January with a total of 36.4 mm of rainfall.

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Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
					1 4°	2 7°
3 10°	4 7°	5 6°	6 4°	7 3°	8 4°	9 -1°
10 3°	11 7°	12 6°	13 6°	14 5°	15 10°	16 8°
17 2°	18 -1°	19 -3°	20 -2°	21 4°	22 -1°	23 -4°
24 -2°	25 -6°	26 -1°	27 5°	28 5°	29 2°	30 6°
31 10°