Downloading Weather Observations United States: National Climatic Data Center www.ncdc.noaa.gov Free access from government and educational domains. Some fees apply for access from other domains. No fee if you download data on campus.

To get a single station’s data (US Stations Only): Data Section  digital ASCII files  Daily Surface Data Your request will set up a query on the NCDC database system. You’ll get an email when the dataset is ready (for small datasets when NCDC is not busy this will be within seconds).

Email will contain several links: 1. Web Form

Email will contain several links: 2. CSV ASCII data

Email will contain several links: 3. Station Summary File 4. Summary of Data Availability

Downloading WMO Data The World Meteorological Organization (WMO) Maintains a continually updated, consistently formatted database of global observations, the Global Summary of the Day(GSOD) Available from the NCDC website, here: http://www7.ncdc.noaa.gov/CDO/cdoselect.cmd?datasetabbv=GSOD

Downloading WMO Data

Downloading WMO Data

Downloading WMO Data

WMO Alternative: FTP Access ftp://ftp.ncdc.noaa.gov/pub/data/gsod/ Station ID numbers, names, Lat, Lon, elevation in file ish-history.txt Individual station files (zipped text format) organized in folders by year, filename given by station ID number.

Be Careful! Read the Dataset Documentation Check Units Check for Missing Data Observations available (eg. TMAX, Precip) vary among station