Climate Data Online

Other names: CDO

Climate Data Online (CDO) provides free access to NCDC's archive of global historical weather and climate data in addition to station history information. These data include quality controlled daily, monthly, seasonal, and yearly measurements of temperature, precipitation, wind, and degree days as well as radar data and 30-year Climate Normals. The data available through CDO is available at no charge and can be viewed online or ordered and delivered via email.



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