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Monthly Normals of Meteorological Elements for Hong Kong, December 1971-2000

Climatological Information Services > Climatological Normals and Extremes > 1971-2000 Normals for Hong Kong (Grouped by month)

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Monthly Normals of Meteorological Elements for December 1971-2000
 
Meteorological Elements
ATMOSPHERIC PRESSURE Mean 1020.5 hPa
Mean Diurnal Range 4.0 hPa
AIR TEMPERATURE Mean Daily Maximum 20.3 deg. C
Mean 17.8 deg. C
Mean Daily Minimum 15.7 deg. C
RELATIVE HUMIDITY Mean 69 %
AMOUNT OF CLOUD 51 %
RAINFALL Total 34.5 mm
Duration 36 hours
Number of
Days with
0.1 mm
or above
4.27  
25.0 mm
or above
0.30  
50.0 mm
or above
0.13  
NUMBER OF DAYS WITH THUNDERSTORM 0  
NUMBER OF DAYS WITH FOG
(Visibility < 1000 m)
0.03  
SOIL TEMPERATURE
AT 0700 HOURS
0.5 m 20.5 deg. C
1.0 m 22.4 deg. C
BRIGHT SUNSHINE
AT KING'S PARK
Duration 173.3 hours
Percentage of Possible 52 %
WIND
AT WAGLAN ISLAND
Prevailing Direction 070 degrees
Mean Speed 26.5 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.

 *  1975 - 2004