Meteorological Observations




RESULTS OF METEOROLOGICAL OBSERVATIONS

DEDUCED FROM DAILY REGISTERS KEPT AT THE

Government Stations in Christchurch and Hokitika, for September, 1866.


CHRISTCHURCH STATION.

Latitude ... 43° 32' 16" S.
Longitude ... 172° 38' 59" E.
Height above Sea ... 21 feet.

HOKITIKA STATION.*

Latitude ... 42° 41' 30" S.
Longitude ... 170° 59' 0" E.
Height above Sea ... 8 feet.


CHRISTCHURCH. HOKITIKA. Christchurch Mean for September, 1864-1865.
Mean Atmospheric Pressure (Barometer corrected and reduced) 29.787 29.794 29.767
Greatest Pressure (2nd) 30.338 (1st) 30.489 30.364
Least Pressure (29th) 29.012 (29th) 29.089 29.026
Mean Pressure of Vapour in Inches of Mercury .317 .364 .288
Mean of Highest Day Temperature in Shade 58.2 59.3 58.1
Mean of Lowest Night Temperature in Shade 43.5 43.3 41.0
Mean Temperature of Atmosphere in Shade 50.8 51.2 49.5
Highest Temperature in Shade (2nd) 70.7 (11th) 64.8 69.9
Lowest Temperature in Shade (27th) 34.6 (9th) 32.1 29.9
Mean Daily Range 14.3 15.7 17.1
Mean Solar Radiation 90.7 74.3 80.4
Maximum ditto (15th) 129.2 (5th) 84.0 95.5
Mean Nocturnal Radiation 35.6 39.7 35.7
Minimum ditto (23rd) 24.3 (9th) 28.5 21.8
Mean Temperature of Dew-point 46.2 50.1 43.7
Mean Degree of Moisture (saturation = 100) 78 89 77
Number of Days on which Rain fell 9 20 11
Total Rainfall in Inches on ground 0.704 8.16 1.792
Greatest Daily Fall (28th) 0.182 (12th) 1.43 0.597
Mean Amount of Cloud (overcast = 10) 5.2 7.0 4.7
Mean Velocity of Wind in Miles per Day 177 126 180
Greatest ditto ditto (11th) 422 (7th) 336 414
Least ditto ditto (23rd) 69 (2nd) 39 52
Mean Direction of the Wind E.S.E. E.N.E. ---
Mean Weight of a Cubic Foot of Air 537.7 grains 537.0 grains 538.6 grains
Vapour in a Cubic Foot of Air 3.55 4.08 3.40
Vapour required to saturate a Cubic Foot of Air 1.00 0.55 1.00

*Note. — The Barometer is corrected for Index Error, &c., and reduced to 32 deg. Fah.

*Observer, JAMES ROCHFORT, Esq., District Engineer.


REMARKS.

CHRISTCHURCH.

The month commenced with a week of very warm dry weather. On the morning of the 8th it blew a gale from N.W. for six hours, followed by a bright sunny day and calm night. The 9th was overcast and cold, with a little mist falling at night. The 10th was cloudless, with a strong easterly breeze. On the 11th and 12th it blew hard day and night from the same direction, with a clear sky; 422 miles of wind passed the station in 24 hours, ending 9.30 a.m. on the 12th, a daily velocity that has been only once exceeded in the last two years. The thermal range during that 24 hours was only 3.8; mean temperature in the shade, 49.5. The 13th was warm and bright. On the 14th and 15th heavy cloud masses covered the sky, giving promise of the much wished for rain, but only a few light showers fell, equal in all to about three-hundredths of an inch in depth. Three days of remarkably fine weather followed, very warm in the daytime.



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Online Sources for this page:

VUW Te Waharoa PDF Canterbury Provincial Gazette 1866, No 76





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🎓 Meteorological Observations for September 1866

🎓 Education, Culture & Science
Meteorology, Weather, Statistics, Christchurch, Hokitika
  • James Rochfort (Esquire), Observer at Hokitika Station