Table II.
Monthly and Annual Means of the Principal Meteorological Elements at the Hongkong Observatory for the year 1911, and departure from the mean of 25 years, 1884 to 1908 inclusive, (+ excess; — defect).
Jan. Feb. Mar. Apr. May. June July Aug. Sept. Oct. Nov. Dec. Year. Bar. Pressure at M.S.L.* 29.784 30.035 30.108 30.153 29.942 30.017 29.957 29.849 29.778 29.680 29.631 Departure − .063 + .060 +.001 -.018 -.018 +.042 +.057 +.011 -.014 -.016 -.049 -.112 .000 Temperature 58.9 60.2 65.5 69.1 74.3 81.1 82.9 82.0 81.9 75.5 69.7 64.3 72.1 Departure + 2.0 + 0.1 + 1.6 + 0.4 + 0.2 + 0.6 + 0.7 + 1.3 + 2.2 + 2.8 71 Rel. Humidity %..... 74 76 77 79 83 82 81 82 78 74 Departure + 3 + 11 + 2 + 7 + 1 + 1 + 1 + 7 + 1 + 2 Vap. Tension (Inches of Mercury) 0.378 0.376 0.528 0.604 0.800 0.921 0.883 0.893 0.829 0.632 0.546 0.474 Departure .033 .027 + .054 + .068 +.085 +,019 + .027 - .020 .017 -.003 .048 Sunshine (Total hours) 138.8 86.1 248.6 189.9 106.4 249.9 190.5 211.0 214.1 155.1 133.9 2063.4 Departure + 24.0 + 34.5 +67.7 +92.3 + 38.1 +11.1 +14.4 + 1.8 +34.5 +45.3 +155.0 +81 Cloudiness% 69 68 66 68 0 + 17 + 15 + 2 + 2 Departure + 3 +6 +10 2.1 66 + 2 60 26 Rainfall (Total Inches) 0.735 0.000 3.810 5.935 22.146 5.090 8.060 30.060 6.216 5.685 2.720 0.095 90.550 Departure -0.723 -1.750 +0.947 -0.053 +9.850 -11.293 4.710 +15.859 -3.422 +1.123 +1.268 -1.090 +6.112 Wind Direction E 12° NE 80 NE 2o NE 40 N SW S 27°E E 44° SS 38° E Departure +20 + 60 + 50 + 3° +12°30 + 2° 7° 16° 8° Wind Velocity (Miles per hour) 13.7 14.0 14.0 14.8 13.3 14.2 11.6 0.8 13.7 11.9 +2.8 Departure - 0.1 0.5 1.1 1.6 1.2 +2.2 +2.2 11.4 13.2 13.2 10.5 13.0 0.5 1.4 + 0.1 1.9 0.1* Not corrected to Standard Gravity.
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Table II.
Monthly and Annual Means of the Principal Meteorological Elements at the Hongkong Observatory for the year 1911, and departure from the mean of 25 years, 1884 to 1908 inclusive, (+ excess; — defect).
29.784 30.035 | 30.108 | 30.153 | 29,942
− .063 | + .060 +,001 -.018 -.018 81.1 74.3 69.1 64.3 72.1 2.0 0.1│+ 1.6 + 0.4
74 76 77
79 + 311 11 + 2
Jan.
Feb. Mar. Apr.
May. June. July. Aug.
Sept. Oct. Nov. Dec.
Year.
Bar. Pressure at
M.S.L.*
Departure
.000
Temperature
Departure
Rel. Humidity %.....
74
1.3 + 2.2 + 2.8 71
69.7 0.4
83
82
Departure
0
0
80.108 80.202 | 30.017| 29.957 29.849 29,778 29.680 29.631
.042 + .057 .011
-.014.016
-.049 -.112 58.9 | 60.2 65.5
75.5 82.9 82.0 81.9
1.3 + 2.2 + 0.2 + 0.6 | + 0.7 90 82 81 82 78 3+ 7
1
1
1
Vap. Tension (Inches
of Mercury)
Departure
Sunshine (Total hours)
0.378
0.376 0.528
ACURA I
A
0.604 0.800 0.921 .033.027 + .054 138.8 86.1 248.6
76 89 6 + 15
70
6. + 2+ 6
70
57 0
51
.017 -.003.048 139.2 189.9 106.4
0.883 0.893 0.829 0.632 0,546 0.474 0,655 .010.009+ .027 - .020 ¦ + .068+.085¦ +,019 249.9 190.5 211.0 214.1 155.1 133 9 2063.4
24.0+ 34.567.792.3 + 38.111.114.4+ 1.8 34.5 45.3155.0
81
69
68 66
68 0+ 17+ 15 + 2
Departure
Cloudiness%
3+6+102.1
66
Departure
+ 2
60 26
Rainfall (Total
Inches)
Departure
Wind Direction
E 12° NE 80 NE 2o NE 40 N Departure NS...+20 + 60 + 50
3°
A
12°30
2° 7° 16° 8° + 20
Wind Velocity
(Miles per hour). 13.7
14.0
14.0
14.8
13.3
Departure
-
0.1
0.5
1.1
1.6
1.2
14.2 11.6 0.8
-
13.7 11.9 +2.8+2.2
11.4
13.2 13.2
10.5
13.0
0.5
1.4 + 0.1
1,9
0.1
0.735 0.000 3.810 5.935 22.146 5.090 8.060 30.060 6.216 5.685 2.720 0.095 90.550 -0.723-1.750 +0.947-0.053 +9.850-11,293 4.710+15.859-3.422 +1.123 +1.268-1.090 +6.112
| S 27°EE 44° SS 38° E D13° NE 12° NE 13° NE 17° NE 6° S 13° + 10°
• Not corrected to Standard Gravity.
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