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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)

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Monthly Normals of Meteorological Elements for Hong Kong,
December 1961-1990
 
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