Rainiest Cities in Colorado

Average annual precipitation, ranked
1991–2020 NOAA normals · 12 cities

Boulder is the rainiest city in Colorado, with 21.2 in of precipitation in an average year. Every Colorado city with a reporting NOAA station, ranked.

#CityAverage annual precipitation
1Boulder21.2 inwettest May
2Lakewood17.5 inwettest May
3Arvada17.1 inwettest May
4Denver15.9 inwettest May
5Colorado Springs15.9 inwettest July
6Fort Collins15.9 inwettest May
7Aurora15.4 inwettest May
8Centennial15.0 inwettest August
9Greeley14.7 inwettest May
10Thornton14.5 inwettest May
11Westminster14.5 inwettest May
12Pueblo13.8 inwettest July

Thirty-year normals and records from each city's NOAA GHCN-Daily station, computed 2026-08-30. Cities with a population of 100,000 or more and a reporting station. Each city name opens its climate page.

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Normals and records: NOAA GHCN-Daily stations. Sunshine from ERA5 reanalysis. City locations: GeoNames (CC BY 4.0).