Monthly Normals of Meteorological Elements for Hong Kong, December 1961-1990
Climatological Information Services
> Climatological Normals and Extremes
> 1961-1990 Normals for Hong Kong (Grouped by month)
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| Meteorological Elements | ||||
|---|---|---|---|---|
| ATMOSPHERIC PRESSURE | Mean | 1020.2 | hPa | |
| Mean Diurnal Range | 4.0 | hPa | ||
| AIR TEMPERATURE | Mean Daily Maximum | 20.5 | deg. C | |
| Mean | 17.6 | deg. C | ||
| Mean Daily Minimum | 15.4 | deg. C | ||
| RELATIVE HUMIDITY | Mean | 68 | % | |
| AMOUNT OF CLOUD | 49 | % | ||
| RAINFALL | Total | 27.3 | mm | |
| Duration | 31 | hours | ||
| Number of Days with |
0.1 mm or above |
3.87 | ||
| 25.0 mm or above |
0.23 | |||
| 50.0 mm or above |
0.10 | |||
| NUMBER OF DAYS WITH THUNDERSTORM | 0 | |||
| NUMBER OF DAYS WITH FOG (Visibility < 1000 m) |
0 | |||
| SOIL TEMPERATURE AT 0700 HOURS * |
0.5 m | 20.6 | deg. C | |
| 1.0 m | 22.5 | deg. C | ||
| BRIGHT SUNSHINE AT KING'S PARK |
Duration | 181.5 | hours | |
| Percentage of Possible | 54 | % | ||
| WIND AT WAGLAN ISLAND |
Prevailing Direction | 080 | degrees | |
| Mean Speed | 25.5 | km/h | ||
| SEA SURFACE TEMPERATURE AT NORTH POINT AT 0700 HOURS ** |
19.8 | deg. C | ||
Note : All measurements were made at the Hong Kong Observatory except
where specified.
* 1967 - 1996
** 1975 - 2004