China Economic Net: Hong Kong recorded a monthly mean temperature of 20.5 degrees Celsius at the Hong Kong Observatory in February, making it the warmest February in Hong Kong since records of the local temperature began in 1884. The monthly average temperature was 4.2 degrees higher than the trend level for the three decades starting from 1970, the Hong Kong Observatory said Sunday. The Observatory even recorded a temperature of 28.3 degrees, the highest daily maximum temperature for February …