Table IX.

Monthly Extremes of the Principal Meteorological Elements registered during the year 1911.

BAROMETER.

MONTH. TEMPERATURE. HUMIDITY. VAPOUR TENSION. RAIN. VELOCITY. WIND RADIATION. Max. Min. Min. Max. Min. Daily Hourly Max. Sun Max. Max. January, 74.4 40 37 0.641 0.172 35 117.8 February, 74.2 47.1 21 0.620 0.180 42 125.0 March, 79.1 54.2 61.3 0.712 0.198 40 125.5 April, 47 0.779 0.169 1.040 0.585 41 139.1 May, 86.9 68.1 60 0.966 0.609 2.735 1.235 39 139.5 June, 91.3 75.0 54 1.018 0.807 1.520 0.435 35 142.0 July, 91.2 75.0 1.037 0.65" 1.590 0.830 60 143.8 August, 93.1 74.3 53 1.027 0.741 8.610 2.350 62 141.6 September, 92.1 75.0 45 1.001 0.635 2.640 1.350 44 143.9 October, 85.5 61.6 39 0.935 0.262 3.340 0.600 86 139.6 November, 80.5 55.7 42 0.792 0.261 0.780 0.185 34 130.3 December, 75.1 53.0 48 0.695 0.278 0.025 0.015 36 127.2 Year, 93.1 47.1 21 1.037 0.169 8.610 2.350 62 143.9

BAROMETER data for each month:

January, 30.184 29.605

February, 30.352 29.602

March, 30.148 29.678

April, 30.045 29.619

May, 29.914 29.527

June, 29.881 29.357

July, 29.786 29.124

August, 29.755 29.209

September, 29.879 29.376

October, 30.115 29.251

November, 30.134 29.819

December, 30.233 29.844

Year, 30.352 29.124

E 11

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