Temperature in The Rocky Mountains in December

Daytime highs, nighttime lows and the warmest cities in the Rocky Mountains, the United States of America this December.

The Rocky Mountains, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in December ranging from -3°C (27°F) in Big Sky to 2°C (36°F) in Estes Park. Nighttime temperatures generally drop to -8°C (18°F) in Estes Park and -13°C (9°F) in Big Sky. December falls during the winter season. On average, it is one of the coldest months of the year.

What is the temperature of the different cities in the Rocky Mountains, the United States of America in December?

Curious about the December temperatures in the prime spots of the Rocky Mountains? Navigate the map below and tap on a destination dot for more detailed stats.

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Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit the Rocky Mountains, check out our the Rocky Mountains's climate page.

See also: the Rocky Mountains weather by month.

Best Places to Visit in the Rocky Mountains in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Rocky Mountains.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

See all December weather averages, cities and regions in the Rocky Mountains

The Rocky Mountains temperatures in December: frequently asked questions

How hot does it get in the Rocky Mountains, the United States of America in December?

Daytime temperatures in Breckenridge typically peak at -1°C (30°F) in December, putting it in the very low range.

How cold does it get at night in the Rocky Mountains, the United States of America in December?

Nighttime temperatures in Breckenridge typically drop to around -13°C (9°F) in December.

What is the warmest city in December in the Rocky Mountains, the United States of America?

Estes Park tops the warmest city list in our database with average maximum daytime temperatures around 2°C (36°F) and a minimum nighttime temperature of around -8°C (18°F).

What is the coldest city in December in the Rocky Mountains, the United States of America?

Our database indicates that in December, Big Sky is the city with the coolest temperatures in the Rocky Mountains, the United States of America. You can expect daytime highs of -3°C (27°F) and nighttime lows close to -13°C (9°F).

Interested in more climate information?

We have much more information about the climate in the Rocky Mountains.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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