THE WEATHER.

Southland Times, Issue 544, 20 August 1866, Page 5

THE WEATHER.

JUNE AND JULY, 1866. For more than three months we have had magnificent weather, only intermingled by the great storms of June 21 and 28 The first was a 'magnetic tempest of- the usual rotatory character, preceded by a fall of an inch and^a tenth in' the borometer in less than eighteen hours. The gale was very strong, first N. and then W., with an intervening calm at the vortex of the cyclone, when the borometer rose, and had increased an inch and a quarter by the following night. The general velocity of the gale was 40 to 45 miles an hour ; but in the squalls after, as great as 60, and once or twice over 70 miles an hour. The pressure varied from 15 to 20 lbs to the square foot. On the second occasion, the depression of the barometer was most remarkable ; it was as low as 28.61 inches. The storm was a very severe one ; but was infinitely more violent and destructive in other parts of New Zealand and far but at sea. On the night of the 30th of June the wind blew with a force of 18 lbs. to the sqaare foot ; a very high tide accompanied it. It was also attended with a great d*al of thunder and lightning, and also snow, si. et ; m 1 rain. - r July was one of the finest months we have eveg had ; from the 2nd to the 31sfc there was only on c unfavorable day ; on that occasion a S.E. breez was accompanied by 24 hours incessant rain. On the following day the easterly winds (the almost total absence of which, during the last nine months, ha 3 been the chief peculiarity of the season, and undoubtedly the cause of the unusually bad weat'ier) set in, with brilliant days and frosty nights ; — no severe frost occurred, the greatest cold was 20.1 deg. In June there was only one sharp frosfc, in Jact, the winter, although colder than that of 1865, has been a very mild and remarkably fine one. A very smart shock of an earthquake occurred on the 9th.of ; June, at 8.43 a.m.j and another on the 20th of July, at 10.5 p.m. ; the former was attended with the usual meteorological and electrical phenomena; the latter had no accompanying peculiarities of weather, excepting the masses of whits vape> a«a? tto iiwfa«« of the

ground, and the fantastic appearance of the clouds, which appear the invaiiablo companions of an earthquake. The following are the readings of the instruments for the months of June and July, and comparative tables of the same months in eight years. june. Baro.naeter— Mean pressure (corrected and reduced), 29.724 inches ; maximum, 30.56 inches on the ISth ; minimum, 28.61 inches on the 27th ; total range of atmospheric pressure, 1.9 i inches — the largest I have ever recorded, — it only extended over nine days. The barometer stood above 30 inches on fourteen days in the month, and below 29 inches on four days. Thermometer — Mean temperature of the air, 44.1 deg. ; 2.8 deg. above the average of seven years ; maximum, 62.4 deg. on 25th ; minimum, 21.1 deg. on the previous day — the total range of temperature was 41.3 deg., which occurred within 24 hour 3 ; mean daily range, 19.2 deg. Hygrometer — Mean degree of humidity, .86 ; temperature of evaporation, 42.4 deg. : dew-point, 40.1 deg. ; elastic force of vapor. 0.286 inches. Radiation — Solar maximum, 74.4 deg. ; terresteria.l minimum, 19 deg. Rainfall— On surface of ground, 5.535 inches. Evaporation— On surface, of ground, 0.879 inches. Cloud — Mean amount, 6.2 (overcast, 10). Wind— Mean force, 3.4— (1—12). Anemometer — Mean diurnal movement of wind, 132 miles ; greatest amount in the 24 hours, 730 miles ; greatest velocity, 70 miles per hour (N. on 21st, W. on 22nd) ; greatest pressure, 23 lbs. to the square foot.

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