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HadGHCND Data: download

Update: March 2013 - Updated version of HadGHCND now available for the years 1950-2011. The new data make use of additional station data and improved quality control procedures implemented at NCDC.

The data are available as a set of compressed plain text files in this data format.
Please click here to see a sample of the actual data.

Temperature anomalies (added March 2013)

These data cover the years 1950-2011 inclusive and are anomalies relative to the 1961-90 daily means.

HadGHCND_TX_anoms_1950-2011_12072012.tar.gz - Tmax anomalies. (~64Mb)
HadGHCND_TN_anoms_1950-2011_12072012.tar.gz - Tmin anomalies. (~62Mb)

Actual temperatures (added March 2013)

These are actual temperatures. They were produced by combining the gridded anomalies (above) with grids representing the 1961-1990 mean climatology for each gridbox for each day of the year. We do not adjust the normals at each station before interpolation, and therefore these grids may be less representative over areas with large spatial variability in climate, such as regions with large variations in topography.

HadGHCND_TX_acts_1950-2011_12072012.tar.gz - Tmax actuals. (~71Mb)
HadGHCND_TN_acts_1950-2011_12072012.tar.gz - Tmin actuals. (~70Mb)

If you have any difficulties downloading or unpacking the data from this page, please contact us.

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