 |
 
Monthly Normals of Meteorological Elements for February 1971-2000,
with Extreme Values between 1884-1939 and 1947-2008 for Hong Kong
| Meteorological Elements |
Date on which
extreme value
was recorded |
ATMOSPHERIC
PRESSURE |
Absolute Maximum |
1032.7 |
hPa |
1/2/1962 |
| Mean |
1018.6 |
hPa |
|
| Absolute Minimum |
998.3 |
hPa |
19/2/1898 |
| Mean Diurnal Range |
4.2 |
hPa |
|
| AIR TEMPERATURE |
Absolute Maximum |
27.8 |
deg. C |
13/2/1953
27/2/1973 |
| Mean Daily Maximum |
18.6 |
deg. C |
|
| Mean |
16.3 |
deg. C |
|
| Mean Daily Minimum |
14.4 |
deg. C |
|
| Absolute Minimum |
2.4 |
deg. C |
11/2/1957 |
| RELATIVE HUMIDITY |
Mean |
78 |
% |
|
| Absolute Minimum |
13 |
% |
21/2/1955 |
| AMOUNT OF CLOUD |
73 |
% |
|
| RAINFALL |
Total |
52.3 |
mm |
|
| Duration |
76 |
hours |
|
Number of
Days with |
0.1 mm
or above |
9.47 |
|
|
25.0 mm
or above |
0.53 |
|
|
50.0 mm
or above |
0.07 |
|
|
| Maximum Hourly |
31.9 |
mm |
23/2/1990 |
| Maximum Daily |
86.1 |
mm |
11/2/1949 |
| Maximum Monthly |
241.0 |
mm |
1983 |
| NUMBER OF DAYS WITH THUNDERSTORM |
0.97 |
|
|
| NUMBER OF DAYS WITH FOG (Visibility < 1000 m) |
1.23 |
|
|
SOIL TEMPERATURE
AT 0700 HOURS |
0.5 m |
18.9 |
deg. C |
|
| 1.0 m |
19.8 |
deg. C |
|
BRIGHT SUNSHINE
AT KING'S PARK |
Duration |
93.8 |
hours |
|
| Percentage of Possible |
29 |
% |
|
WIND
AT WAGLAN ISLAND |
Prevailing Direction |
070 |
degrees |
|
| Mean Speed |
25.1 |
km/h |
|
| Maximum Gust # |
110 |
km/h |
19/2/1955 |
SEA SURFACE TEMPERATURE
AT NORTH POINT AT 0700 HOURS ** |
16.7 |
deg. C |
|
Note : All measurements were made at the Hong Kong Observatory except where specified.
# 1953 - 2008
** 1975 - 2008
|
