Colorado's Historic Weather and Climate Events

Flash Flooding and Heavy Precipitation Events

Historic Floods Database

Colorado's Historic Floods
The September 2013 Flood Website maintains a list (with details) of heavy precipitation and flood events that have occurred in Colorado's history. The list includes the following events:
September 1902
September 1938
May 1955
June 1965
May 1969
September 1970
Big Thompson Flood, 1976
Fort Collins Flood, 1997
April 1999

September 2013 Floods

Colorado Climate Center's September 2013 Flood Website
Review all our resources on the historic flooding that occurred across many parts of Colorado in September 2013.

Big Thompson Flood, 1976

Blizzards and Winter Storms

Record Snowfall at Silver Lake

Record Snowfall of April 14-15, 1921
This historic storm not only holds the record for the most snowfall in 24 hours in the state, it also holds the record for the country! About 76 inches fell in 24 hours, 87 accumulated in 27.5 hours, and 95 inches were measured in 32.5 hours. This Monthly Weather Review article from 1953 assesses the accuracy of this record.