5-Day Normals of Meteorological Elements for Hong Kong, 1961 - 1990 Mean Mean Wet- Dew Mean Prevailing Mean Mean Max. Mean Min. bulb Point Mean Cloud Daily Wind Wind Pressure Temp. Temp. Temp. Temp. Temp. RH R/F Amount Sunchine Direction Speed (hPa) (deg.C) (deg.C) (deg.C) (deg.C) (deg.C) (%) (mm) (%) (hours) (degree) (km/h) Jan 1-5 1020.5 18.5 15.7 13.5 12.6 9.3 68 1.0 56 5.1 010 25.9 Jan 6-10 1020.6 18.9 16.1 13.9 13.0 9.8 68 0.4 51 5.7 070 22.5 Jan 11-15 1020.5 18.5 15.6 13.3 12.6 9.5 69 0.5 52 5.3 070 24.0 Jan 16-20 1020.3 18.5 15.6 13.3 12.8 10.1 72 0.7 55 5.4 070 24.2 Jan 21-25 1019.8 19.1 16.2 14.0 13.6 11.2 74 0.6 62 4.6 070 23.2 Jan 26-30 1019.3 18.7 16.0 13.9 13.6 11.3 76 0.9 69 3.8 070 23.9 Jan 31-Feb 4 1019.9 17.3 14.8 12.8 12.4 10.1 75 1.0 71 3.5 070 24.9 Feb 5-9 1019.6 17.8 15.3 13.3 13.1 11.0 77 1.7 72 3.6 070 24.8 Feb 10-14 1019.1 18.8 16.0 13.9 13.9 12.0 78 1.3 69 3.9 070 22.2 Feb 15-19 1018.0 19.6 16.8 14.7 14.6 12.7 78 1.3 70 4.0 070 22.2 Feb 20-24 1017.5 19.2 16.7 14.7 14.7 13.1 81 2.2 80 2.6 070 23.4 Feb 25-Mar 1 1018.5 18.3 15.8 13.8 13.7 11.7 78 2.8 78 2.9 010 25.7 Mar 2-6 1018.1 19.7 16.9 14.8 14.8 12.8 79 2.4 75 3.3 070 23.0 Mar 7-11 1017.5 20.6 17.9 16.1 15.9 14.3 80 0.9 76 3.2 070 22.6 Mar 12-16 1016.2 21.8 18.8 16.6 16.8 15.3 81 1.7 71 3.7 070 20.0 Mar 17-21 1014.8 22.1 19.2 17.2 17.3 16.0 82 2.4 76 3.1 080 21.9 Mar 22-26 1015.5 21.4 18.8 16.8 16.9 15.5 82 3.4 81 2.5 070 24.6 Mar 27-31 1014.9 22.7 20.0 18.0 18.0 16.7 82 2.1 78 3.0 080 19.9 Apr 1-5 1014.5 22.8 20.2 18.2 18.3 17.0 83 6.3 84 2.5 080 22.6 Apr 6-10 1013.8 24.0 21.3 19.3 19.4 18.2 83 6.3 81 2.9 080 20.2 Apr 11-15 1013.7 24.2 21.6 19.6 19.5 18.3 83 4.6 79 3.1 080 20.4 Apr 16-20 1012.6 25.4 22.6 20.6 20.6 19.5 83 3.4 79 3.9 080 18.9 Apr 21-25 1012.0 26.6 23.6 21.5 21.5 20.3 83 4.8 71 5.1 080 17.9 Apr 26-30 1011.9 26.6 23.8 21.9 21.7 20.7 83 6.9 76 4.4 080 17.9 May 1-5 1010.7 27.6 24.7 22.7 22.6 21.6 84 8.0 75 4.7 080 17.5 May 6-10 1010.6 28.6 25.7 23.6 23.4 22.3 82 6.6 72 5.4 090 16.3 May 11-15 1009.7 28.6 25.9 23.9 23.8 22.8 84 12.1 76 4.7 090 18.7 May 16-20 1008.8 28.8 26.0 24.0 23.6 22.4 81 12.3 70 5.4 080 22.8 May 21-25 1008.2 28.8 26.2 24.3 23.9 22.9 83 7.6 73 4.8 090 19.5 May 26-30 1007.1 29.4 26.8 24.8 24.5 23.5 83 14.3 75 4.6 090 19.9 May 31-Jun 4 1006.8 29.5 26.9 25.0 24.8 23.8 84 15.2 78 4.2 090 21.3 Jun 5-9 1006.9 29.2 26.8 25.0 24.6 23.7 84 12.9 77 4.5 090 21.4 Jun 10-14 1006.4 30.0 27.5 25.6 25.1 24.2 83 12.8 75 5.3 090 20.8 Jun 15-19 1005.6 30.6 28.1 26.2 25.6 24.6 82 16.0 74 5.6 220 23.0 Jun 20-24 1005.7 31.2 28.5 26.6 26.0 25.0 82 7.7 71 6.6 100 21.2 Jun 25-29 1005.3 31.2 28.5 26.6 26.0 25.0 82 11.2 73 5.9 190 22.0 Jun 30-Jul 4 1005.2 31.3 28.7 26.7 26.1 25.1 81 11.3 69 6.8 230 20.1 Jul 5-9 1005.7 31.8 29.1 27.0 26.2 25.1 80 5.8 62 8.0 230 19.6 Jul 10-14 1005.8 31.7 28.9 26.7 26.1 25.0 80 10.8 65 7.7 230 19.9 Jul 15-19 1005.6 31.7 28.8 26.5 26.0 24.9 80 11.3 63 8.1 230 20.1 Jul 20-24 1005.7 31.5 28.7 26.5 26.1 25.0 81 9.7 67 7.4 230 20.1 Jul 25-29 1004.3 31.3 28.5 26.3 25.8 24.7 81 12.8 65 6.8 230 20.2 Jul 30-Aug 3 1004.4 31.2 28.5 26.3 26.0 25.0 82 14.9 67 6.6 230 19.6 Aug 4-8 1004.8 31.5 28.7 26.5 26.1 25.1 82 8.7 66 6.9 230 17.2 Aug 9-13 1004.8 31.1 28.4 26.3 25.9 24.9 82 14.7 69 6.6 090 20.6 Aug 14-18 1004.8 31.4 28.4 26.2 25.9 24.8 82 14.7 66 6.8 090 18.7 Aug 19-23 1004.8 31.4 28.4 26.2 25.8 24.7 81 14.3 65 6.8 230 19.9 Aug 24-28 1006.1 31.4 28.5 26.4 25.8 24.6 80 9.3 64 6.8 090 17.1 Aug 29-Sep 2 1006.4 31.1 28.2 26.0 25.6 24.5 81 12.1 66 6.1 090 17.0 Sep 3-7 1006.9 31.0 28.2 25.9 25.5 24.4 81 12.6 65 6.5 090 20.9 Sep 8-12 1007.6 30.9 27.9 25.7 24.9 23.6 78 12.9 60 6.6 090 18.3 Sep 13-17 1008.9 30.6 27.8 25.7 24.6 23.0 76 5.8 63 6.2 090 20.0 Sep 18-22 1009.9 30.2 27.5 25.3 24.3 22.8 77 6.9 63 6.0 090 23.4 Sep 23-27 1010.6 29.6 27.0 24.9 24.0 22.6 78 10.3 64 5.5 090 24.9 Sep 28-Oct 2 1011.3 29.1 26.6 24.6 23.6 22.1 77 7.9 63 5.5 090 27.6 Oct 3-7 1012.4 29.1 26.4 24.3 22.8 20.9 73 4.6 53 6.6 090 24.8 Oct 8-12 1013.3 28.6 25.9 23.9 22.3 20.4 72 3.5 53 6.8 090 27.2 Oct 13-17 1013.4 28.4 25.6 23.5 22.1 20.2 73 7.9 55 6.5 090 29.3 Oct 18-22 1014.6 27.4 24.8 22.8 21.5 19.5 74 5.3 56 6.2 080 29.8 Oct 23-27 1015.3 26.9 24.3 22.3 20.9 18.9 73 3.0 60 5.7 080 28.2 Oct 28-Nov 1 1016.4 26.0 23.3 21.3 19.9 17.8 72 3.3 53 6.3 090 25.8 Nov 2-6 1016.7 26.1 23.3 21.2 19.8 17.7 72 0.9 50 6.7 080 25.7 Nov 7-11 1016.5 25.0 22.5 20.5 19.2 17.1 72 1.8 61 5.4 080 29.4 Nov 12-16 1017.6 24.3 21.7 19.6 18.5 16.2 72 1.6 63 5.0 080 27.5 Nov 17-21 1018.2 23.9 21.1 18.8 17.5 14.8 69 1.2 51 6.4 080 26.4 Nov 22-26 1019.0 22.9 20.1 17.9 16.2 12.9 65 0.6 49 6.1 080 27.9 Nov 27-Dec 1 1020.1 21.9 18.8 16.2 14.8 11.2 63 0.8 44 6.7 360 27.1 Dec 2-6 1020.0 21.7 18.7 16.4 15.1 11.9 67 1.7 44 6.3 080 24.5 Dec 7-11 1019.7 21.6 18.6 16.3 15.3 12.4 69 0.6 44 6.5 080 24.7 Dec 12-16 1020.7 20.3 17.5 15.2 13.9 10.6 66 0.2 44 6.3 080 26.8 Dec 17-21 1020.3 20.3 17.6 15.4 14.4 11.4 69 1.1 52 5.5 080 24.8 Dec 22-26 1019.8 20.0 17.2 14.9 14.1 11.1 70 0.6 53 5.4 070 24.9 Dec 27-31 1020.3 18.9 16.2 14.0 13.2 10.2 69 1.1 60 4.8 070 26.6 Note : All measurements were made at the Hong Kong Observatory except sunshine and wind which were recorded at King's Park Meteorological Station and Waglan Island respectively