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Owing to the prevalence of relatively weak but dry northeast monsoon, there was ample of sunshine in November 2010. The duration of bright sunshine for the month was 212.5 hours, about 19% above normal. The mean temperature was 21.2 degrees, slightly lower than the normal figure of 21.4 degrees.
There were only a few days with rain, but the total rainfall of 42.2 millimetres was slightly higher than normal. The accumulated rainfall since January 1, 2010 was 2353.3 millimetres, close to the normal figure of 2348.2 millimetres for the same period.
A dry northeast monsoon over southern China brought fine and dry weather to Hong Kong for the first three days of the month. Affected by a broad cloud band over the coastal areas of Guangdong, the weather became rainy and cooler from November 4 to 6. The minimum temperature recorded at the Hong Kong Observatory on November 5 was 16.8 degrees, the lowest of the month. With the dissipation of the cloud band, fine weather resumed locally with some haze on November 7. It remained fine and dry from November 8 to 12.
Another broad cloud band associated with an area of low pressure over the central part of the South China Sea brought cloudy periods to the territory for the next three days. A replenishment of the northeast monsoon reached the south China coast on the morning of November 16, bringing cooler conditions with a few light rain patches to Hong Kong. The clouds soon dissipated and there were some sunny periods and haze in that afternoon.
Dominated by the northeast monsoon, local weather was mainly fine apart from some haze from November 17 to 24. Another replenishment of the northeast monsoon reached the south China coastal areas on the morning of November 25, bringing cooler and dry weather to Hong Kong from November 25 to 27. It remained fine with some haze for the last three days of the month.
There were no tropical cyclones over the South China Sea or the western North Pacific during the month.
Details of the issuance and cancellation of various warnings/signals in the month are summarised in Table 1. Monthly meteorological figures and departures from normals of November are tabulated in Table 2.
Ends/Thursday, December 2, 2010
Issued at HKT 19:16
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