Appendix C

Weather Information

Appendix C

Weather Conditions during the Monitoring Period

I. General Information

Date	Mean Air Temperature (°C)	Mean Relative Humidity (%)	Precipitation (mm)
01/04/2017	18.7	70	0.2
02/04/2017	19.9	64	0.0
03/04/2017	20.7	68	0.0
04/04/2017	21.9	77	0.0
05/04/2017	23.4	81	0.0
06/04/2017	23.5	87	0.3
07/04/2017	24.5	84	0.0
08/04/2017	25.0	85	0.0
09/04/2017	25.8	84	0.0
10/04/2017	27.0	83	Trace
11/04/2017	26.1	90	0.6
12/04/2017	20.6	89	21.5
13/04/2017	20.0	80	Trace
14/04/2017	21.9	78	0.0
15/04/2017	23.6	86	0.0
16/04/2017	25.7	82	Trace
17/04/2017	26.0	79	Trace
18/04/2017	26.7	79	0.0
19/04/2017	26.7	78	0.0
20/04/2017	26.1	86	3.1
21/04/2017	26.2	88	7.8
22/04/2017	20.6	79	6.6
23/04/2017	20.8	83	1.4
24/04/2017	21.5	83	Trace
25/04/2017	21.9	92	10.9
26/04/2017	23.7	95	2.9
27/04/2017	22.3	88	3.5
28/04/2017	21.8	74	0.0
29/04/2017	23.0	75	0.0
30/04/2017	24.0	75	0.0

II. Mean Wind Speed and Wind Direction

Date	Prevailing Wind Direction (degrees)	Mean Wind Speed (km/h)
01/04/2017	030	10.2
02/04/2017	100	13.8
03/04/2017	100	14.9
04/04/2017	080	12.6
05/04/2017	080	11.0
06/04/2017	140	9.5
07/04/2017	140	8.7
08/04/2017	130	9.3
09/04/2017	130	7.1
10/04/2017	230	8.2
11/04/2017	230	5.6
12/04/2017	040	10.3
13/04/2017	110	8.0
14/04/2017	110	12.0
15/04/2017	140	10.0
16/04/2017	140	10.3
17/04/2017	270	8.3
18/04/2017	300	9.6
19/04/2017	230	9.2
20/04/2017	120	8.7
21/04/2017	190	10.5
22/04/2017	040	7.2
23/04/2017	110	8.4
24/04/2017	110	15.3
25/04/2017	110	12.9
26/04/2017	140	9.9
27/04/2017	040	6.6
28/04/2017	130	8.7
29/04/2017	130	9.5
30/04/2017	130	10.0

Remark: Due to failure of weather station, the above weather information was obtained from Hong Kong Observatory.