Temperature in Colorado in September

Daytime highs, nighttime lows and the warmest cities in Colorado, the United States of America this September.

Colorado, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in September ranging from 14°C (57°F) in Tordal Estates to 29°C (84°F) in La Junta. Nighttime temperatures generally drop to 11°C (52°F) in La Junta and 1°C (34°F) in Tordal Estates.

What is the temperature of the different cities in Colorado, the United States of America in September?

Discover the typical September temperatures for the most popular locations of Colorado on the map below. Detailed insights are just a click away.

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

See also: Colorado weather by month.

Best Places to Visit in Colorado in September

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

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 September: blue is cold, red is hot.

See all September weather averages, cities and regions in Colorado

Colorado temperatures in September: frequently asked questions

How hot does it get in Colorado, the United States of America in September?

Average daytime highs in Colorado, the United States of America during September reach about 17°C (63°F) in Breckenridge.

How cold does it get at night in Colorado, the United States of America in September?

Average overnight lows in Colorado, the United States of America during September sit near 2°C (36°F) in Breckenridge.

What is the warmest city in September in Colorado, the United States of America?

Data insights from our comprehensive database indicate that La Junta is the city with the highest warmth. Daytime peaks average near 29°C (84°F), while the nights are characterized by a low temperature close to 11°C (52°F).

What is the coldest city in September in Colorado, the United States of America?

The coldest city in September in Colorado, the United States of America is Tordal Estates when we check our database. The maximum daytime temperatures are around 14°C (57°F) and minimum nighttime temperatures fall around 1°C (34°F).

Interested in more climate information?

We have much more information about the climate in Colorado.

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