The GHCN-monthly data set provides monthly mean in situ surface air temperature and precipitation data. Data is available for some locations dating back to the 1700s. There is global coverage from 1880 to the present. The data is updated each month with the most recent month's data. Quality controlled and homogeneity adjusted data sets are available. There are 7,280 mean temperature stations and more than 20,000 precipitation stations.
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Data
This page features Federal climate data resources as well as select datasets associated with the Third National Climate Assessment.
Climate.Data.Gov
As part of the Administration's Climate Data Initiative, climate.data.gov provides access to Federal resources to help America’s communities, businesses, and citizens plan and prepare for climate change.climate.data.gov