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HOME >Climate System Monitoring > Monthly Highlights on the Climate System

Monthly Highlights on the Climate System

'Monthly Highlights on the Climate System' has been issued in PDF format since March 2007 as a monthly bulletin focusing on the monthly highlights of the monitoring results.

Notice: From 19 May 2021 onward, the products in this page are based on the new climatological normal (1991-2020 average) unless otherwise stated.


Highlights in June 2022

- Atmospheric and oceanic indicators suggest ongoing La Niña conditions in the equatorial Pacific (see El Niño Outlook updated on 11 July 2022). In the tropical Indian Ocean, remarkably positive SST anomalies were observed in the southeastern part, and negative SST anomalies were observed in the western part.
- Monthly mean temperatures were significantly above normal in eastern and western Japan, and monthly precipitation amounts were significantly below normal on the Pacific side of western Japan.
- Monthly mean temperatures were extremely high from central Europe to the northern part of Northern Africa. Monthly precipitation amounts were extremely low from western Russia to eastern Europe.
- Convective activity was enhanced from the equatorial Indian Ocean to near southern Indonesia, and suppressed from the Bay of Bengal to near the date line in the equatorial Pacific.
- In the 500-hPa height field, positive anomalies were seen from the Mediterranean Sea via the Barents Sea to the western part of Eastern Siberia, and negative anomalies were seen over Greenland and the southern part of Western Siberia. The subtropical jet stream meandered over Eurasia.


Full version (PDF)

The descriptions from May-2011 to April-2021 issue are based on the former climatological normal (1981-2010 average).
In the descriptions until April-2011 issue, 1979-2004 average is used as climatological normal unless otherwise stated.
The descriptions until January-2014 issue are based on the JRA-25/JCDAS datasets.

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Tokyo Climate Center, Climate Prediction Division.
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