{"title":"Japan: highest significance records","description":"The highest significance records in Japan in the data.","dataAsOf":"2026-10-14T00:00:00Z","lastRevised":"2026-10-15","source":"Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products.","licence":"US Government open data (NOAA NCEI)","page":"https://worldextremeweathermonitor.com/countries/jp/records/","columns":[{"name":"id","description":"Stable record id: station, date, type and timescale."},{"name":"station_id","description":"GHCN-Daily station id."},{"name":"station_name","description":"Station name."},{"name":"country","description":"ISO 3166 alpha-2 country code."},{"name":"type","description":"Record type: tmax_high, tmax_low, tmin_high, tmin_low, prcp_high, snow_high or snwd_high."},{"name":"timescale","description":"daily, monthly or all-time."},{"name":"date","description":"Date the record was set, YYYY-MM-DD."},{"name":"value","description":"Record value in degrees Celsius or millimetres."},{"name":"unit","description":"c for degrees Celsius, mm for millimetres."},{"name":"previous_value","description":"The record it replaced, in the same unit. Empty for a first record."},{"name":"previous_date","description":"Date of the replaced record."},{"name":"margin","description":"How far the new value beat the old record, a non negative magnitude in the same unit. Zero for a tie."},{"name":"years_stood","description":"Whole years the replaced record had stood."},{"name":"significance","description":"Record Significance Score from 0 to 100 (see /methodology/)."},{"name":"tie","description":"True when the value tied the record."},{"name":"provisional","description":"True while the record is inside the 60 day provisional window."},{"name":"lat","description":"Station latitude in decimal degrees."},{"name":"lon","description":"Station longitude in decimal degrees."}],"rows":[{"id":"JA000047750-2026-08-27-prcp_high-all-time","station_id":"JA000047750","station_name":"Maizuru Reg Met HQ","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-08-27","value":436,"unit":"mm","previous_value":324.1,"previous_date":"1953-09-25","margin":111.9,"years_stood":72,"significance":88,"tie":false,"provisional":true,"lat":35.45,"lon":135.333},{"id":"JA000047807-2026-07-01-prcp_high-all-time","station_id":"JA000047807","station_name":"Fukuoka","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":555.5,"unit":"mm","previous_value":307.8,"previous_date":"1953-06-25","margin":247.7,"years_stood":73,"significance":88,"tie":false,"provisional":false,"lat":33.583,"lon":130.383},{"id":"JA000047747-2026-08-31-prcp_high-all-time","station_id":"JA000047747","station_name":"Tajima","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-08-31","value":351,"unit":"mm","previous_value":213.3,"previous_date":"1959-09-26","margin":137.7,"years_stood":66,"significance":87,"tie":false,"provisional":true,"lat":35.5,"lon":134.783},{"id":"JA000047570-2026-07-01-prcp_high-all-time","station_id":"JA000047570","station_name":"Wakamatsu","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":272.5,"unit":"mm","previous_value":142.5,"previous_date":"1956-07-16","margin":130,"years_stood":69,"significance":87,"tie":false,"provisional":false,"lat":37.483,"lon":139.917},{"id":"JA000047670-2026-07-01-prcp_high-all-time","station_id":"JA000047670","station_name":"Yokohama","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":374,"unit":"mm","previous_value":287.2,"previous_date":"1958-09-26","margin":86.8,"years_stood":67,"significance":87,"tie":false,"provisional":false,"lat":35.433,"lon":139.65},{"id":"JA000047411-2026-09-04-prcp_high-all-time","station_id":"JA000047411","station_name":"Otaru","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-09-04","value":255.5,"unit":"mm","previous_value":161,"previous_date":"1962-08-03","margin":94.5,"years_stood":64,"significance":86,"tie":false,"provisional":true,"lat":43.183,"lon":141.017},{"id":"JA000047668-2026-07-01-prcp_high-all-time","station_id":"JA000047668","station_name":"Ajiro","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":494.5,"unit":"mm","previous_value":323.5,"previous_date":"1961-06-28","margin":171,"years_stood":65,"significance":86,"tie":false,"provisional":false,"lat":35.05,"lon":139.1},{"id":"JA000047607-2026-09-07-prcp_high-all-time","station_id":"JA000047607","station_name":"Toyama","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-09-07","value":377,"unit":"mm","previous_value":203.6,"previous_date":"1964-07-18","margin":173.4,"years_stood":62,"significance":85,"tie":false,"provisional":true,"lat":36.717,"lon":137.2},{"id":"JA000047895-2026-07-04-prcp_high-all-time","station_id":"JA000047895","station_name":"Tokushima","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-04","value":460,"unit":"mm","previous_value":364.7,"previous_date":"1965-09-14","margin":95.3,"years_stood":60,"significance":85,"tie":false,"provisional":false,"lat":34.067,"lon":134.567},{"id":"JA000047631-2026-07-01-prcp_high-all-time","station_id":"JA000047631","station_name":"Tsuruga","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":298.5,"unit":"mm","previous_value":211.2,"previous_date":"1965-09-17","margin":87.3,"years_stood":60,"significance":85,"tie":false,"provisional":false,"lat":35.65,"lon":136.067},{"id":"JA000047766-2026-07-01-prcp_high-all-time","station_id":"JA000047766","station_name":"Kure Reg Met HQ","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":379.5,"unit":"mm","previous_value":212.9,"previous_date":"1967-07-09","margin":166.6,"years_stood":58,"significance":84,"tie":false,"provisional":false,"lat":34.233,"lon":132.567},{"id":"JA000047617-2026-09-15-prcp_high-all-time","station_id":"JA000047617","station_name":"Takayama","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-09-15","value":361.5,"unit":"mm","previous_value":220,"previous_date":"1971-09-06","margin":141.5,"years_stood":55,"significance":83,"tie":false,"provisional":true,"lat":36.15,"lon":137.25},{"id":"JA000047654-2026-08-07-prcp_high-all-time","station_id":"JA000047654","station_name":"Hamamatsu","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-08-07","value":363,"unit":"mm","previous_value":226,"previous_date":"1971-08-31","margin":137,"years_stood":54,"significance":83,"tie":false,"provisional":false,"lat":34.717,"lon":137.717},{"id":"JA000047657-2026-08-07-prcp_high-all-time","station_id":"JA000047657","station_name":"Mishima","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-08-07","value":413,"unit":"mm","previous_value":271,"previous_date":"1970-06-15","margin":142,"years_stood":56,"significance":83,"tie":false,"provisional":false,"lat":35.117,"lon":138.933},{"id":"JA000047770-2026-09-03-prcp_high-all-time","station_id":"JA000047770","station_name":"Kobe","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-09-03","value":410,"unit":"mm","previous_value":319.4,"previous_date":"1967-07-09","margin":90.6,"years_stood":59,"significance":82,"tie":false,"provisional":true,"lat":34.7,"lon":135.217},{"id":"JA000047435-2026-08-08-prcp_high-all-time","station_id":"JA000047435","station_name":"Mombetsu","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-08-08","value":223,"unit":"mm","previous_value":148,"previous_date":"1973-08-18","margin":75,"years_stood":52,"significance":82,"tie":false,"provisional":false,"lat":44.35,"lon":143.35},{"id":"JA000047767-2026-07-01-prcp_high-all-time","station_id":"JA000047767","station_name":"Fukuyama","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-01","value":319.5,"unit":"mm","previous_value":151,"previous_date":"1975-08-17","margin":168.5,"years_stood":50,"significance":82,"tie":false,"provisional":false,"lat":34.45,"lon":133.25},{"id":"JA000047684-2026-08-07-prcp_high-all-time","station_id":"JA000047684","station_name":"Yokkaichi","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-08-07","value":435,"unit":"mm","previous_value":271,"previous_date":"1974-07-25","margin":164,"years_stood":52,"significance":81,"tie":false,"provisional":false,"lat":34.933,"lon":136.583},{"id":"JA000047575-2026-07-04-prcp_high-all-time","station_id":"JA000047575","station_name":"Aomori","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-04","value":213,"unit":"mm","previous_value":153,"previous_date":"1977-08-05","margin":60,"years_stood":48,"significance":81,"tie":false,"provisional":false,"lat":40.817,"lon":140.767},{"id":"JA000047893-2026-07-02-prcp_high-all-time","station_id":"JA000047893","station_name":"Kochi","country":"JP","type":"prcp_high","timescale":"all-time","date":"2026-07-02","value":724,"unit":"mm","previous_value":524.5,"previous_date":"1976-09-12","margin":199.5,"years_stood":49,"significance":81,"tie":false,"provisional":false,"lat":33.567,"lon":133.55}]}