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Colorado climate guide
Temperature in Colorado (°C)
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Sunshine & Daylight in Colorado
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Rainfall in Colorado
|Number of days with some rain|
|Average monthly rainfall (mm)|
More climate for Colorado
|UV Index (Maximum)|
|Heat & Humidity|
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Going to Colorado? Find the best month to visit Colorado based on the weather.
Check climate guides for Colorado showing average temperature, rainfall & sunshine figures for each month of the year. The climate guide shown above is for Denver.
More about Colorado
- Weather overview
- Climate guide
- 5-day forecast
- Best time to go
- Weather by month
- Today's conditions
- Compare weather
- Sunrise & Sunset
- USA snow reports
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- Back to USA
The climate guide for Colorado, represented by Denver, shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Colorado climate overview
The state of Colorado straddles the highest regions of the Rocky Mountains between Utah in the west and Kansas in the east. Colorado is famous for the rarefied air of its forested snow-covered mountains and has the highest average elevation of any state. It is also a land of great contrasts. In the west there is desert and in the east a vast rolling prairie.
The capital, Denver - 'Mile High City', is situated on the edge of this prairie where the mountains and the plains meet, with about half the state's population living in the surrounding area.
To the west of Denver mountains rise abruptly and extend westwards for over 160 kilometres (100 miles). Among the many ranges there are more than 1,000 peaks over 3,000 metres (10,000 ft), and some of the most famous ski resorts in the world such as Vail and Aspen.
Further west, the mountains give way to the rugged Colorado Plateau with broken tablelands, which over the years have become eroded by melt-waters off the mountains.
Colorado has an extreme climate with summer temperatures ranging from comfortable in the mountains to hot on the plains, and long cold winters almost everywhere.
In winter, mountain temperatures regularly fall below -18°C (0°F) and the eastern plains are occasionally affected by blizzard conditions when polar air masses collide with warmer moist air off the Gulf of Mexico. The plains are also particularly prone to severe thunderstorms in the spring and summer months.
Colorado's distance from the Pacific Ocean and the Gulf of Mexico means that rainfall levels are generally low. In winter precipitation falls almost entirely as snow, especially in the mountains, leading to abundant snow cover. For most of western Colorado rainfall levels are higher in winter than in summer, whereas in the east the opposite is true.
Throughout the state sunshine levels are high. Denver boasts an average of more than 60% of daylight hours with bright sunshine for every month of the year. Clear skies, spectacular scenery and cool mountain temperatures at the height of summer make Colorado a popular destination.
More Colorado destinations
- Colorado Springs
- Estes Park
- Fort Collins
- Glenwood Springs
- Grand Junction
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