Grand Junction (CO) Climate by Month
The temperature in Grand Junction can vary quite a bit throughout the year.
Temperatures can be very warm during the warmest months,
and cold during the cooler months.
It maintains fairly dry conditions year-round.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
Visitors to Grand Junction can expect significant temperature changes throughout the year. Average daytime temperatures range from a very warm 34°C in July, the warmest time of the year, to a chilly 2°C during cooler months like January. At night, temperatures typically average around -9°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Grand Junction's climate is marked by below-average rain/snowfall, accumulating 255 mm of precipitation yearly. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, September receives moderate rainfall, averaging 32 mm of precipitation, recorded across 7 rainy days. In contrast, the drier season, June brings less rainfall, with 12 mm over 3 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Grand Junction. While June receives considerable daily sunshine with up to 11.9 hours, December marks the darkest time of the year, where sunshine is scarce with only 6.0 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is low throughout the year in Grand Junction.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Grand Junction ranges from 2°C in January to 5°C in June.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Grand Junction in the United States of America
Other facts from our historical weather data:The hottest season / summer takes place in June, July, August and September.
Yes, the months of January, February, March, June and November are very dry.
July has an average maximum temperature of 34°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 2°C.
September tops the wettest month list with 32 mm of rainfall.
June is the driest month with 12 mm of precipitation.
June is the sunniest month with an average of 357 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
