An official website of the United States government

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Observation Sites

Select single site by:

Station Name

Station Code

or Select multiple sites by:

Country

or by:

Program

Show only active sites

Yellow markers indicate discontinued sites

GML Projects at Sioux Falls, South Dakota

Meteorology