Table II.
Monthly and Annual Means of the Principal Meteorological Elements at the Hongkong Observatory for the year 1909, and departure from the mean of 25 years (+ excess; - defect).
Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Year Bar. Pressure at M.S.L.* Departure 30.100 30.106 30.016 29.951 29.883 29.701 29.765 29.781 29.780 29.888 30.067 30.175 29.945 .060 .039 .013 .006 +.022 +.029 +.036 +.038 -.037 .097 .040 .001 60.6 60.4 64.1 71.1 74.9 82.1 82.2 82.8 82.2 77.8 70.4 63.6 72.7 Temperature Departure + 0.5 + 2.4 + 1.4 Rel. Humidity 80 81 81 79 83 80 81 Departure + 6 + 2 + 6 Vap. Tension (Inches of Mercury) 0.431 0.431 0.497 0.612 0.720 0.876 Departure Sunshine (Total hours) 57.8 155.4 -18.2 +51.1 Departure 2.2 Cloudiness % 83 80 85.0 85.6 64.2 Departure +19 + 4 + 9 + 3 + 2 + 2 Rainfall (Total Inches) 1.460 1.660 2.345 2.455 6.700 7.385 12.825 +0.002 —0.090 −0.518 —8.427 -5.595 8.998 +0.055 5.861 -1.132 +19.423 1.387 -1.185 -8.713 E 15° NE 11° NE 5° NE 8° Wind Direction Vịt 5° NE 78° SE 15° SS 32° W E 2° SE 24° NE51° NE 18° N] E 1° S Departare 1° + 3 + 9° F° 18° +25° 11° + 7° + 13° 8.340 8.505 23.985 0.053 +.009 113.9 230.3 232.0 215.3 202.6 137.5 187.1 249.7 39.9 + 74.1 +50.2 +137 + 60 - 74.8 2.6 +70.5 85 78 70 64 63 80 57 01 + 6 + 29 + 6 Wind Velocity (Miles per hour). 14.1 14.2 16.5 + 0.3 0.3 + 0.6 14.1 13.4 12.5 14.1 0.8 +0.4 + 0.1 + 3.2 7.8 1.9 9.0 16.8 2.9 + 2.2 12.6 11.4 13.0 0.5 1.0 0.1NB —The observations for 1909, as above, are compared with the 25 year means for the period 1884 to 1908 inclusive.
* Not corrected to Standard Gravity.
Table II.
Monthly and Annual Means of the Principal Meteorological Elements at the Hongkong Observatory for the year 1909, and departure from the mean of 25 years (+ excess; - defect).
Jan.
Bar. Pressure at M.S.L.*
Departure
Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dec. Year,
30.100 30.106 30.016| 29.951| 29 883 29 701 29.765 29.781| 29.780| 29.888| 30.067 | 30.175 29.945
.060 ..039 .013 006 +.022+.029+.036)+.038 -.037 .097 .040.001 60.6) 60.4 64.1
71.1 74.9 82.1 82.2 82.8 82.2 77.8 70.4 63.6
10
.015
Temperature
72.7
Departure
+ 0.5+ 2.4 + 1.4+
Rel. Humidity
......
80
81
81
79
83
80
81
Departure
+
6 | +
2
6
S
1.9 1.4+ 0.4+ 1.5+ 1.8+ 1.5+ 1.2 + 0.9
81 80 77 2+ 3+ 6
1.0
62
59
77
3
0
Vap. Tension (Inches
of Mercury)
0.431 0.431 0497
0.612
0.720 0.876
Departure
Sunshine (Total hours)į
Departure
57.8
2.2
Cloudiness %
83
80
+080+.002)+.014 .025 85.0 85.6 64.21 155.4 -18.2+51.1
92
0.891 0.909 0 880 0.740 0.469 -.002.025|+.078+ 088+,009
0.357
78
Departure
+19+
4+ 9
3 + + 2+ 2
Rainfall (Total
Inches)
Wind Direction
Departare
Departure NS...)
1.460 1 660 2.345 2.455 6.700 7.385) 12.825 +0.002 —0:090 −0.518—8.427 -5.5958.998 +0.0555 861-1.132 +19423 1.387 -1.185-8.713 E 150 NE 119 NE 5o NE 80 Vịt 5° NE 780 SE 15° SS 32° W E 2° SE 24° NE51° NE 18° N] E 1° S
1° + 3+ 90 Fo 18° +25° 11° + 73° + 13°
8.340 8.505 23.985
053+.009 113.9 230,3 232.0 215.3 202.6 137.5 187.1 249.7 39.9 + 74.1 +502 +137)+ 60 - 74.8 2.6+70.5
85 78 70 64 63 80 57 01+ 6+ 29+ 6
0.065 0.000 75.726
032
0.651 +.015 1978.6
J
70.2
30 21 + 6
72
5°
220+ 7° + 30
Wind Velocity
(Miles per hour).
Departure
14.1 142 16.5 + 0.3 0.3 + 0.6
14.1 13.4 12.5 14.1 0.8, +0.4+ 0.11+ 3.2
7.8 1.9
9.0 16.8 2,9+ 2.2
12,6 11.4 13,0
0.5 1.0
0.1
NB —The observations for 1909, as above, are compared with the 25 year means for the period 1884 to 1908 inclusive.
* Not corrected to Standard Gravity.
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