✨ Meteorological Observations
RESULTS OF METEOROLOGICAL OBSERVATIONS
DEDUCED FROM DAILY REGISTERS KEPT AT THE
Government Stations in Christchurch and Hokitika, for July, 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 | |
|---|---|---|
| Mean Atmospheric Pressure | 30.015 | 30.151 |
| Greatest Pressure (a) | 30.499 | 30.462 |
| Least Pressure (b) | 29.232 | 29.340 |
| Mean Tension of Vapour in Inches of Mercury | .244 | .286 |
| Mean Temperature of the Air in the Shade | - | 44.9 |
| Highest Temperature in the Shade (7th) | 61.0 | (30th) 63.0 |
| Lowest Temperature in the Shade (23rd) | 26.3 | (14th) 27.5 |
| Mean Daily Range | 14.5 | 14.0 |
| Mean Solar Radiation | 66.7 | 60.8 |
| Maximum ditto (7th) | 84.2 | 70.0 |
| Mean Nocturnal Radiation | 30.7 | 33.2 |
| Minimum ditto (23rd) | 18.4 | (14th) 23.0 |
| Mean Temperature of the Dew-point | 39.3 | 43.2 |
| Mean Degree of Moisture (Saturation = 100) | 83 | 86 |
| Number of Days on which Rain fell | 9 | 14 |
| Total Rainfall in Inches | 2.186 | 7.490 |
| Greatest Daily Fall (10th) | 0.90 | (10th) 1.74 |
| Mean Amount of Cloud (overcast = 10) | 5.1 | 5.8 |
| Mean Velocity of Wind in Miles per Day | 122 | 99 |
| Greatest ditto (28th) | 276 | (30th) 404 |
| Least ditto (4th) | 20 | (26th) 44 |
(a) On the forenoon of the 4th at both stations.
(b) On the afternoon of the 29th at both stations.
*Note.—The Barometer is corrected for Index Error, &c., and reduced to 32 deg. Fah.
- Observer, James Roehfort, Esq., District Engineer.
REMARKS.
CHRISTCHURCH.
The month commenced with a week of exceedingly fine weather—warm sunny days, followed by cloudless nights, in general frosty. Light rain fell on the evening of the 9th. On the afternoon and night of the 10th there was a heavy fall of rain = 0.90 inches in twelve hours. On the 11th it again cleared up, and continued very fine until the 16th, which, with the 17th, was cold and wet; almost constant light rain from the S.W. The 18th, 19th, and 20th were fine calm days; the 21st and 22nd showery. From the latter to the 28th the days were again almost cloudless, with very severe frosts at night; on the 23rd, 24th, and 25th the exposed thermometer on grass fell to 19°, 19°.5, and 19°.2 respectively. The 28th was overcast and threat...
...ening, with two hours rain at night. The rest of the month was dull and cloudy. On the whole the weather was exceedingly mild and open for the season. The rainfall was moderate—one tenth of an inch above the average of July, 1864-5. No snow or hail fell in the district during the month, which was also entirely free from gales or high winds; the greatest horizontal movement in 24 hours being 276 miles on the 28th. The mean direction of the wind was S.E., as seen by the following condensed table of observations:—
N. = N., plus ¼ N.E., plus ¼ N.W. = 9
E. = E., plus ¼ N.E., plus ¼ S.E. = 35
S. = S., plus ½ S.E., plus ½ S.W. = 23
W. = W., plus ¼ S.W., plus ¼ N.W. = 21
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Canterbury Provincial Gazette 1866, No 58
✨ LLM interpretation of page content
🎓 Meteorological Observations for July 1866
🎓 Education, Culture & ScienceWeather, Statistics, Christchurch, Hokitika, July 1866
- James Roehfort, Esq., District Engineer