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World Weather Records (WWR) Clearinghouse

World Weather Records (WWR) have been published since 1927, and include monthly mean values of pressure, temperature, precipitation, and where available, station metadata notes documenting observation practices and station configurations. Data were supplied by National Meteorological Services as members of the World Meteorological Organization (WMO). The First Issue included data from earliest records available at that time up to 1920. Data have been collected for periods 1921-30 (2nd Series), 1931-40 (3rd Series), 1941-50 (4th Series), 1951-60 (5th Series), 1961-70 (6th Series), 1971-80 (7th Series), 1981-90 (8th Series), and 1991-2000 (9th Series). The present 10th series (2001-2011) continues, insofar as possible, the record of monthly mean values of station pressure, sea-level pressure, temperature, and monthly total precipitation for stations listed in previous volumes. In addition to these parameters, mean monthly maximum and minimum temperatures have been collected for many stations and are archived in digital files by NCEI. New stations have also been included. The data have been received by NCEI and quality controlled. It is in the process of being archived under Submission Agreement. Data for the 10th Series should be available to users by mid 2017.

** Please note that starting in 2011 the WWR will be collected and published on a yearly basis (New draft Guidelines for the Submission of the WWR starting in 2011).

Additional information:

Data Access (All data files have been quality controlled and are in final ASCII format):

Contact: