Monthly Normals of Meteorological Elements for Hong Kong, August 1961-1990
Climatological Information Services
> Climatological Normals and Extremes
> 1961-1990 Normals for Hong Kong (Grouped by month)
|
Meteorological Elements | ||||
---|---|---|---|---|
ATMOSPHERIC PRESSURE | Mean | 1005.1 | hPa | |
Mean Diurnal Range | 3.5 | hPa | ||
AIR TEMPERATURE | Mean Daily Maximum | 31.3 | deg. C | |
Mean | 28.4 | deg. C | ||
Mean Daily Minimum | 26.3 | deg. C | ||
RELATIVE HUMIDITY | Mean | 81 | % | |
AMOUNT OF CLOUD | 66 | % | ||
RAINFALL | Total | 391.4 | mm | |
Duration | 73 | hours | ||
Number of Days with |
0.1 mm or above |
17.30 | ||
25.0 mm or above |
4.70 | |||
50.0 mm or above |
2.17 | |||
NUMBER OF DAYS WITH THUNDERSTORM | 6.93 | |||
NUMBER OF DAYS WITH FOG (Visibility < 1000 m) |
0 | |||
SOIL TEMPERATURE AT 0700 HOURS * |
0.5 m | 30.0 | deg. C | |
1.0 m | 29.5 | deg. C | ||
BRIGHT SUNSHINE AT KING'S PARK |
Duration | 207.0 | hours | |
Percentage of Possible | 52 | % | ||
WIND AT WAGLAN ISLAND |
Prevailing Direction | 090 | degrees | |
Mean Speed | 18.5 | km/h | ||
SEA SURFACE TEMPERATURE AT NORTH POINT AT 0700 HOURS ** |
26.5 | deg. C |
Note : All measurements were made at the Hong Kong Observatory except
where specified.
* 1967 - 1996
** 1975 - 2004