Rocky Mountain National Park (CO) Temperature by Month

Rocky Mountain National Park, Colorado, United States of America has an average annual maximum temperature of 7°C (45°F), ranging from -3°C (27°F) in December to 19°C (66°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The weather in Rocky Mountain National Park experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 6°C (43°F) in July to -12°C (10°F) in December.

The chart below illustrates the average maximum day and minimum night temperatures in Rocky Mountain National Park by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.

The chart below shows the average temperature throughout the year:

Rocky Mountain National Park's average annual maximum temperature is 7°C (45°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Beijing, China averages 20°C (68°F) annually, but with big seasonal swings, very cold winters and hot summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

For more on Rocky Mountain National Park's weather, including monthly rainfall, sunshine hours, and humidity, visit our Rocky Mountain National Park climate page.