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October 11, 2013

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Longest summer? Monday may decide

SHANGHAI is guaranteed its longest summer since records began in 1872 — provided temperatures don’t drop too far on Monday.

Today, the mercury is forecast to range from 20 to 27 degrees, said the Shanghai Meteorological Bureau.

The high is expected to hover between 25 and 27 degrees Celsius over the weekend, with sun and cloud forecast.

However, a strong cold front is predicted to reach the city on Monday, bringing heavy rain and strong winds.

Temperatures will drop below 20 degrees on Tuesday, the bureau predicted.

“The high on next Tuesday is expected to drop by 8 degrees to only 19,” said Wu Rui, a forecaster at the bureau.

Summer in Shanghai officially lasted 156 days in 2006 and 2009. Monday would be the 157th day this year.

The bureau declares the start of autumn when temperatures average less than 22 degrees for five consecutive days. The first of those five days is considered the first day of autumn.

So if Monday’s temperatures stay above an average of 22 degrees, autumn cannot start until after then and a new record for Shanghai summertime will be set.

But even if temperatures do fall below 22 degrees, summer may still linger as they are forecast to rise next week — preventing the run of five cool days required to herald autumn.

 




 

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