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Weather of June
Last month was the hottest June on record. The mean temperature of 28.8 degrees was the highest for the month of June and equalled the previous record set in 1977 and 1938.
The mean minimum temperature of 26.9 degrees and the mean maximum temperature of 31.2 degrees also ranked the third and seventh highest respectively for the month.
The monthly mean pressure of 1,008.8 hectopascals was the third highest for June with the dominance of the subtropical ridge over south China.
The total rainfall of 404 millimetres in the month was 28 millimetres above normal, making the accumulated rainfall since January 1 of 1,058.2 millimetres seven per cent above the normal for the same period.
The weather during the first week of the month was mainly fine with south to south-westerly winds.
On June 7, long sunny periods brought the temperature up to 33.2 degrees, the highest in the month. Winds turned easterly two days later and some brief but heavy showers occurred on the following morning.
However, sunny weather prevailed later during the day and temperatures rose to 33.2 degrees again on June 11.
Winds turned south-westerly that evening but backed to south-easterly on June 13 and it remained fine. The weather deteriorated the following day as showers and thunderstorms affected the territory in the afternoon. For the next two days, thundery weather continued with fresh gusty south-easterly winds.
The weather improved temporarily on June 17 with long sunny periods. It was cloudy again with some showers during the next three days. Winds turned more to the south and became fresh south-westerly on June 20.
A trough of low pressure formed across central China on June 19 and moved towards the south China coastal areas during the evening of June 21. It remained active and brought widespread heavy rain and thunderstorms to Hong Kong in the next few days.