Carbondale (CO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Carbondale.
Climate overview of Carbondale
Temperatures in Carbondale, Colorado, United States of America, vary greatly throughout the year. July is the hottest month at 30°C (86°F), while December is the coldest at 2°C (36°F).
The city has a relatively dry climate, receiving around 400 mm (16 in) of rain/snowfall per year. It does experience two distinct dry seasons, October to April and June to August, with very warm summers and very cold winters. May is the wettest month and June the driest.
Carbondale Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Carbondale - and find the best time to visit.
Monthly Temperature in Carbondale
The climate in Carbondale is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 30°C (86°F) in July to a very cold 2°C (36°F) in December.
Nighttime temperatures range from 12°C (54°F) in July to -12°C (10°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Carbondale
Carbondale has a relatively dry climate with low precipitation, averaging 400 mm (16 in) of rain/snowfall annually. The seasons in Carbondale bring significant changes in precipitation. The wettest month, May, receives moderate rainfall, with an average of 43 mm (1.7 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, June, experiences much less rainfall, totaling 16 mm (0.6 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Carbondale Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Carbondale by Month
The relative humidity is moderate throughout the year in Carbondale.
The city experiences its highest humidity in December, reaching 64%. In June, the humidity drops to its lowest level at 43%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Carbondale
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, August and September
- Warmest weather: July
- Fewest rainy days: June
- Seasonal pattern: Two distinct dry seasons, October to April and June to August, with very warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -12°C (10°F).
Frequently asked questions about the climate in Carbondale
What is the best time to visit Carbondale?
May, June, August and September typically offer the most optimal weather in Carbondale. In contrast, January and December tend to have less optimal conditions. Carbondale has two distinct dry seasons, October to April and June to August, with very warm summers and very cold winters.
What temperatures can I expect in Carbondale?
Daytime highs range from 2°C (36°F) in December to 30°C (86°F) in July. Nighttime lows range from -12°C (10°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Carbondale get?
Annual rainfall is around 400 mm (16 in). May is the wettest month with 43 mm (1.7 in), while June is the driest with 16 mm (0.6 in).
Carbondale 3-Day Forecast
Carbondale (CO) 3-Day Forecast
Carbondale on the map
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