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Climate & Weather Data

NOAA Climate Data Online (CDO)

NOAA Climate Data Online provides free access to historical weather station records including daily and monthly temperature, precipitation, and wind data from thousands of stations worldwide.

Format CSV / XML
Coverage Global (station network)
Resolution Station-level (point data)
License Public domain (US government)
Update Daily station updates
Download source Open official source

Format

CSV / XML

Geometry

Point (weather stations)

Coverage

Global (station network)

Resolution

Station-level (point data)

About this dataset

Historical weather station data from NOAA including daily and monthly observations for thousands of stations worldwide.

NOAA Climate Data Online provides access to historical weather and climate data from thousands of observing stations worldwide. The CDO portal offers daily and monthly summaries of temperature, precipitation, wind, and other meteorological variables from the Global Historical Climatology Network (GHCN) and other NOAA datasets.

Historical climate analysis Weather station data extraction Climate trend studies

How to download

  1. 1 Open the Climate Data Online portal.
  2. 2 Search for stations by location, station ID, or dataset type.
  3. 3 Select the date range and variables (temperature, precipitation, etc.).
  4. 4 Download the data as CSV or XML and process in your GIS or analysis tool.

Climate Data Online portal

Search, filter, and download station data

→

GHCN daily data

Direct access to GHCN daily dataset

→

FAQ

Is NOAA climate data free?

Yes. NOAA Climate Data Online provides free access to historical weather station data. Some bulk requests may require a free account.

What is the difference between CDO and WorldClim?

CDO provides point-based station observations (actual measurements), while WorldClim provides spatially interpolated gridded climate surfaces. Use CDO for station-level analysis and WorldClim for continuous spatial coverage.