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Yesterday's Weather and Radiation Level

Bulletin issued at 00:15 HKT 16/Dec/2018

HKO Readings & Radiation level

Yesterday's Weather and Radiation Level:
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Hong Kong Observatory
Maximum Air Temperature                     21.2 C
Minimum Air Temperature                     17.2 C
Grass Minimum Temperature                   15.3 C
Relative Humidity                        66 - 80 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2152.3 mm
Against an average of                     2383.2 mm

Other Stations                Min                  Max
King's Park                  16.4 C               23.1 C
Wong Chuk Hang               17.0 C               22.9 C
Ta Kwu Ling                  14.4 C               23.0 C
Lau Fau Shan                 13.9 C               21.4 C
Tai Po                       14.4 C               20.7 C
Sha Tin                      16.0 C               22.0 C
Tuen Mun                     14.9 C               23.1 C
Tseung Kwan O                15.5 C               22.5 C
Sai Kung                     16.3 C               20.4 C
Cheung Chau                  16.0 C               23.4 C
Chek Lap Kok                 16.1 C               21.3 C
Tsing Yi                     16.8 C               23.2 C
Shek Kong                    14.7 C               23.7 C
Tsuen Wan Ho Koon            14.8 C               23.2 C
Tsuen Wan Shing Mun Valley   16.4 C               24.2 C
Hong Kong Park               17.3 C               22.8 C
Shau Kei Wan                 16.1 C               21.8 C
Kowloon City                 16.0 C               24.3 C
Happy Valley                 17.3 C               23.2 C
Wong Tai Sin                 16.6 C               23.7 C
Stanley                      17.0 C               21.2 C
Kwun Tong                    16.3 C               21.8 C
Sham Shui Po                 16.3 C               24.0 C
Kai Tak Runway Park          16.9 C               21.9 C
Yuen Long Park               14.4 C               23.1 C
Tai Mei Tuk               14.4 C                      

Duration of sunshine (King's Park):              6.6 H
The mean UV index recorded at King's Park yesterday was 2,
the UV intensity was LOW.
The maximum UV index for yesterday was 6.

Yesterday's (15 Dec 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 to
0.15 microsievert per hour.  These are within the normal
range of fluctuation of the background radiation level in
Hong Kong (See Note). The average dose rates measured at the
radiation monitoring stations over various parts of the
territory were as follows :

Station                     Yesterday's average
                            (microsievert/hour)
Ping Chau                           0.09
Tap Mun                             0.09
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.11
Kwun Tong                           0.13
Sai Wan Ho                          0.10
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.15   


Note
1.     From readings taken at various locations in Hong Kong in the
       past, the hourly mean ambient gamma radiation dose rate may
       vary between 0.06 and 0.3 microsievert per hour. (1
       microsievert = 0.000001 sievert = 0.001 millisievert)

2.     Temporal variations are generally caused by changes in
       meteorological conditions such as rainfall, wind and
       barometric pressure.

3.     Spatial variations are generally caused by differences in
       the radioactive content of local rock and soil.

4.     The data displayed is provisional. Only limited data
       validation has been carried out.

Yesterday's Radiation Level Yesterday's Radiation Level
Climatological Information for 15 Dec Climatological Information for 15 December
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