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Climate Report over Japan

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Seasonal Highlights

- Seasonal precipitation amounts were significantly above normal on the Pacific side of eastern Japan and in western Japan, mainly due to active stationary fronts and moist air inflow in August.
- Seasonal mean temperatures and seasonal sunshine durations were significantly above normal in northern Japan. Seasonal mean temperatures were above normal in eastern Japan and seasonal sunshine durations were above normal on Sea of Japan side of eastern Japan. These can be attributed to high-pressure systems in early June and late July.
- Seasonal precipitation amounts on the Sea of Japan side of northern Japan were significantly below normal.
- Sunshine durations were below normal in Okinawa/Amami due to tropical low-pressure systems passed around the region.

Climate Anomaly Table Over Japan

Seasonal Climate Anomaly over Japan


Monthly Mean 500hPa GeoPotential Height

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Tokyo Climate Center, Climate Prediction Division.
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