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EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, JUNE 2015

EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JUNE 2015 (Table 1)

Date
June
Mean Pressure
(hPa)
Air   Temperature Mean
Dew Point
Temperature
(deg. C)
Mean
Relative
Humidity
(%)
Mean
Amount
of Cloud
(%)
Total
Rainfall
(mm)
Maximum
(deg. C)
Mean
(deg. C)
Minimum
(deg. C)
1 1007.9 31.2 29.3 28.4 26.2 83 82 10.6
2 1009.3 32.5 29.6 26.5 25.8 81 81 5.4
3 1010.2 33.2 29.9 28.0 25.1 76 68 Trace
4 1008.9 32.8 29.8 27.9 25.2 76 59 -
5 1007.3 31.4 29.2 27.8 25.2 79 77 -
6 1007.7 32.4 29.5 27.2 25.3 78 78 0.8
7 1009.0 32.1 29.8 28.1 25.4 78 65 Trace
8 1008.1 32.2 29.8 27.8 25.4 77 73 1.6
9 1007.2 31.5 29.9 28.4 25.5 77 72 Trace
10 1007.3 32.0 29.9 27.3 26.1 80 83 8.1
11 1008.2 32.7 30.3 27.9 26.1 78 79 0.8
12 1008.5 31.7 28.8 25.6 26.0 85 79 96.8
13 1007.9 32.3 29.9 28.5 25.5 78 76 0.4
14 1008.3 33.0 29.9 27.3 25.6 78 77 1.5
15 1009.4 34.0 30.2 26.7 25.6 77 48 5.2
16 1008.2 33.4 30.1 28.1 25.3 76 39 -
17 1006.0 33.0 30.2 28.5 25.4 76 40 -
18 1005.3 34.2 30.7 28.5 25.2 73 52 -
19 1006.1 34.2 30.8 28.6 25.2 73 40 Trace
20 1006.5 34.1 30.9 29.2 26.1 76 56 -
21 1005.1 31.9 28.5 26.3 26.7 90 80 51.0
22 1003.2 30.0 27.9 26.7 26.6 93 87 18.1
23 1003.9 29.1 27.3 26.0 26.1 93 88 51.3
24 1005.3 30.7 28.3 26.1 26.2 89 86 9.7
25 1005.8 29.7 28.3 26.9 26.3 89 88 28.5
26 1006.1 32.3 29.5 27.1 26.0 82 68 10.4
27 1008.3 32.5 30.4 29.1 26.1 78 53 -
28 1009.5 33.6 30.4 27.4 25.7 76 64 1.9
29 1007.9 33.3 30.5 28.9 25.5 75 54 Trace
30 1006.0 32.5 30.4 29.1 25.8 76 66 Trace
Mean/Total 1007.3 32.3 29.7 27.7 25.7 80 69 302.1
Normal* 1006.1 30.2 27.9 26.2 24.6 82 77 456.1
Station Hong   Kong   Observatory

EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JUNE 2015 (Table 2)

Date
June
Number of hours
of Reduced
Visibility#
(hours)
Total
Bright
Sunshine
(hours)
Daily
Global Solar
Radiation
(MJ/m2)
Total
Evaporation
(mm)
Prevailing
Wind
Direction
(degrees)
Mean
Wind
Speed
(km/h)
1 0 0.4 7.10 3.2 190 22.8
2 0 4.2 15.39 3.0 190 22.9
3 0 10.6 27.00 6.5 220 19.8
4 0 11.1 27.52 6.3 230 19.9
5 0 5.0 16.81 5.7 230 24.4
6 0 5.9 19.36 2.9 210 10.8
7 0 5.1 17.02 6.9 200 20.3
8 0 7.5 21.48 6.8 200 20.9
9 0 6.2 19.04 6.3 220 22.6
10 0 3.8 13.57 4.3 210 22.0
11 0 5.5 17.55 N.A. 220 22.6
12 0 6.7 19.10 6.3 210 15.2
13 0 4.9 15.89 2.3 210 18.0
14 0 4.9 17.75 5.6 200 18.4
15 0 6.6 18.81 5.3 200 10.6
16 0 9.9 24.53 6.6 220 11.1
17 0 11.5 27.74 7.8 230 22.5
18 0 11.7 27.68 8.1 230 20.9
19 0 10.5 26.75 7.1 230 14.5
20 0 10.0 25.60 5.3 130 13.6
21 0 3.4 14.42 N.A. 110 26.0
22 0 1.5 10.23 N.A. 130 25.6
23 0 0.3 7.91 0.8 160 24.6
24 0 0.4 10.12 1.9 170 17.4
25 0 0.9 6.74 2.1 200 24.4
26 0 6.8 19.68 3.3 220 24.4
27 0 8.8 20.93 7.6 200 21.9
28 0 10.8 25.32 6.3 220 20.2
29 0 10.3 23.89 7.7 220 24.1
30 0 7.6 21.61 5.7 220 27.2
Mean/Total 0 192.8 18.88 141.7& 220 20.3
Normal* 19.5§ 146.1 14.19 117.1 220 22.9
StationHong   Kong
International   Airport
King's   Park Waglan   Island^

The minimum pressure recorded at the Hong Kong Observatory was 1001.7 hectopascals at 1604 HKT on 22 June.

The maximum air temperature recorded at the Hong Kong Observatory was 34.2 degrees C at 1423 HKT on 18 June and at 1543 HKT on 19 June.

The minimum air temperature recorded at the Hong Kong Observatory was 25.6 degrees C at 0338 HKT on 12 June.

The maximum gust peak speed recorded at Waglan Island was 87 kilometres per hour from 180 degrees at 1343 HKT on 23 June.

The maximum instantaneous rate of rainfall recorded at King's Park was 290 millimetres per hour at 0957 HKT on 12 June.

# Reduced visibility refers to visibility below 8 kilometres when there is no fog, mist or precipitation.

   - The visibility readings at the Hong Kong International Airport are based on hourly observations by professional meteorological observers in 2004 and before, and average readings over the 10-minute period before the clock hour of the visibility meter near the middle of the south runway from 2005 onwards. The change of the data source in 2005 is an improvement of the visibility assessment using instrumented observations following the international trend.

   - Before 10 October 2007, the number of hours of reduced visibility at the Hong Kong International Airport in 2005 and thereafter displayed in this web page was based on hourly visibility observations by professional meteorological observers. Since 10 October 2007, the data have been revised using the average visibility readings over the 10-minute period before the clock hour, as recorded by the visibility meter near the middle of the south runway.

^ In case the data are not available from Waglan Island, observations of Cheung Chau or other nearby weather stations will be incorporated in computing the Prevailing Wind Direction and Mean Wind Speed.

* 1981-2010 Climatological Normal, unless otherwise specified

§ 1997-2014 Mean value

& Data incomplete