About Global Climate Monitoring
JMA monitors the global climate with CLIMAT and SYNOP reports from NMHSs through the Global
Telecommunication System. Quality-checked data of temperature and precipitation are assembled
to assess extreme climate events. Weekly, monthly and seasonal monitoring reports on extreme
climate events with brief description on disastrous events and the distribution maps of temperature
and precipitation for the world are available on this page.
Climatological normals for temperature and precipitation are based on the period 1981-2010.
Weekly Report on Extreme Climate Events
Monthly Mean Temperature Anomaly (Normalized)