Grand Junction Weather in January

What's the weather like in Grand Junction (Colorado) in January 2025?

The climate in Grand Junction during January can be summarized as cold and dry.

January is in the winter in Grand Junction and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 2°C (36°F), whilst at night -10°C (13°F) is normal.

Grand Junction weather averages (imperial / metric)
Daytime temperature 2.2°C 36°F
Nightly temperature -10.4°C 13.3°F
Average temperature -4.1°C 24.6°F
Daily sunshine 6.9 hrs
Avg rainfall 15 mm 0.6 ins
Rainy days 6 days
Sea temperature 11.2°C 52.1°F
Humidity 69%
Windspeed 10.1kph 6 mph

On average January is the 3rd driest month of the year in Grand Junction with around 15mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.9 hours of sunshine per day.

January temperatures in Grand Junction

Grand Junction average temperature in January

January rainfall

Grand Junction average rain in January

January hourly sunshine

Grand Junction average rain in January

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Grand Junction in January 2024.