New Zealand Gazette – 1920 – No. 78

Page 2591

✨ Meteorological Observations



SEPT. 2.] THE NEW ZEALAND GAZETTE. 2591

Government Meteorological Observatory.

METEOROLOGICAL Observations, Wellington, for the month of July, 1920. Observations taken 9 a.m.
Altitude of Observatory, 8 ft.

From Self-registering Instruments, for Twenty-four Hours previously.

| Date. | Barometer reduced in Inches to Lat. 45°. | Max. Temp. in Shade. | Min. Temp. in Shade. | Mean Temp. in Shade. | Solar Radia- tion. | Terrestrial Radiation. | Veloc. Wind. in Miles. Amount of Cloud. 0 to 10. | Direction of Wind. | Rainfall, in Points (100 to 1 Inch). |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 30·469 | 52·0 | 44·3 | 48·1 | 106·0 | 41·0 | 372 | 9 | NNW | Trace |
| 2 | 30·420 | 55·8 | 50·2 | 53·0 | 92·0 | 48·5 | 542 | 9 | N.W. | .. |
| 3 | 30·352 | 57·9 | 55·1 | 56·5 | 87·0 | 52·8 | 462 | 10 | N.W. | Trace |
| 4 | 30·220 | 58·8 | 51·6 | 55·2 | 101·0 | 50·9 | 166 | 10 | NNE | 1 |
| ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| 31 | 30·568 | 55·6 | 34·0 | 44·8 | 107·0 | 25·0 | 45 | 0 | N.E. | .. |

  • Means, &c. † Means previous years.

DIRECTION OF WIND.

N. N.E. E. S.E. S. S.W. W. N.W. Calm.

4 | 2 | .. | 1 | 5 | .. | 1 | 4 | 14

NOTE.—The weather from the lst to the 23rd was cloudy, unsettled, and showery, the latter portion of the month being bright and sunny, with hard frosts at night. Total bright sunshine, 125 hours 47 minutes, and three sunless days. Frost was recorded on the grass on fifteen mornings, the lowest reading of the terrestrial radiation thermometer being 18° F. on the 26th. Fog was in evidence on the 27th. Mean earth-temperature at 1 ft. was 47·3° and 50·4° at 3 ft. Mean dew-point, 42·5°; mean elastic force of vapour, 0·272 in.; and mean relative humidity, 81 per cent. of saturation.

CLIMATOLOGICAL TABLE.
MEANS AND TOTALS FROM THE CHIEF STATIONS.
July, 1920.

Altitude above Sea-level. Name of Station and Observer. Absolute Mean Temp. Air in Shade. Extremes. Mean Max. Temp. Mean Min. Temp. Total Rainfall (100 Points to the Inch). Days with Rain (1 Point or more).
Ft. NORTH ISLAND. Deg. Deg. Deg. Points. Dys
125 AUCKLAND F. A. F. Burnett 50·8 57·0 44·7 373 10
46 TE AROHA G. F. McGirr 47·3 56·6 38·1 314 8
... ... ... ... ... ... ...
12 INVERCARGILL L. Lennie 44·7 51·5 37·9 404 20

SUMMARY FOR THE MONTH OF JULY, 1920.

The July rainfall totals were generally above the average in the southern half of the South Island, but nearly all other parts of the Dominion recorded a deficiency. The first half of the month was characterized by unsettled, mild, dull, and wet weather, chiefly the effect of a prolonged westerly low-pressure area. On the 17th an anti-cyclone overspread the Dominion, and continued until the close of the month. During this period fair weather ruled, though at times easterly winds brought cold, changeable conditions along the east coast of the North Island. The last half of the month was remarkable for the number of frosts in places where they are unusual, and many stations reported the hardest frosts experienced for many years.

D. C. BATES.



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Online Sources for this page:

VUW Te Waharoa — PDF NZ Gazette 1920, No 78


NZLII — PDF NZ Gazette 1920, No 78




✨ LLM interpretation of page content

🎓 Meteorological Observations for Wellington, July 1920

🎓 Education, Culture & Science
Weather, Temperature, Rainfall, Wind, Wellington, July 1920
  • D. C. Bates

🎓 Climatological Table for Chief Stations, July 1920

🎓 Education, Culture & Science
Climate, Temperature, Rainfall, Auckland, Te Aroha, Invercargill, July 1920
  • F. A. F. Burnett, Observer at Auckland station
  • G. F. McGirr, Observer at Te Aroha station
  • L. Lennie, Observer at Invercargill station