EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
|Number of hours
|King's Park||Waglan Island^|
The minimum pressure recorded at the Hong Kong Observatory was 1012.8 hectopascals at 1442 HKT on 13 December.
The maximum air temperature recorded at the Hong Kong Observatory was 25.9 degrees C at 1548 HKT on 5 December.
The minimum air temperature recorded at the Hong Kong Observatory was 11.5 degrees C at 0457 HKT on 28 December.
The maximum gust peak speed recorded at Waglan Island was 81 kilometres per hour from 010 degrees at 0753 HKT on 27 December.
The maximum 1-minute mean rainfall rate recorded at King's Park was 54 millimetres per hour at 0906 HKT on 21 December.
# Reduced visibility refers to visibility below 8 kilometres when there is no fog, mist or precipitation.
- The visibility readings at the Hong Kong International Airport are based on hourly observations by professional meteorological observers in 2004 and before, and average readings over the 10-minute period before the clock hour of the visibility meter near the middle of the south runway from 2005 onwards. The change of the data source in 2005 is an improvement of the visibility assessment using instrumented observations following the international trend.
- Before 10 October 2007, the number of hours of reduced visibility at the Hong Kong International Airport in 2005 and thereafter displayed in this web page was based on hourly visibility observations by professional meteorological observers. Since 10 October 2007, the data have been revised using the average visibility readings over the 10-minute period before the clock hour, as recorded by the visibility meter near the middle of the south runway.
^ In case the data are not available from Waglan Island, observations of Cheung Chau or other nearby weather stations will be incorporated in computing the Prevailing Wind Direction and Mean Wind Speed.
* 1981-2010 Climatlogical Normal, unless otherwise specified
§ 1997-2015 Mean value