Jan. 1942 | The Central Meteorological Observatory Research Division was established. |
Oct. 1945 | The Central Meteorological Observatory Research Division was moved to Koenji (Mabashi), Suginami, Tokyo. |
Apr. 1947 | The Meteorological Research Institute was reorganized into two Administrative Divisions and 10 Research Laboratories. |
Jun. 1949 | Reorganized and associated with the Central Meteorological Observatory. |
Jun. 1956 | Reorganized and associated with the Japan Meteorological Agency, with one Administrative Department and 9 Research Divisions with 23 Research Laboratories. |
May 1972 | Enlarged into one Office of Planning, two Adminstrative Divisions and 9 Research Divisions with 26 Laboratories. |
Apr. 1977 | Expanded to 27 Laboratories. |
Jun. 1980 | The entire Institute was moved to Tsukuba Science City. |
May 1987 | The Climate Research and the Meteorological Satellite and Observation System Research Divisions were established. |
Apr. 1997 | The Atmospheric Environment and Applied Meteorology Research Department was established. |
May 2013 | The Senior Director for Research Affairs, the Senior Director for Research Coordination and the Oceanographic and Geochemical Research Department were established. |
Apr. 2014 | The Seismology and Tsunami Research Department and the Volcanology Research Department were established. |
Apr. 2019 | The Atmosphere, Ocean and Earth System Modeling Research Department, the Physical Meteorology Research Department, the Observation and Data Assimilation Research Department, the Typhoon and Severe Weather Research Department, the Climate and Geochemistry Research Department and the Applied Meteorology Research Department were established. |