✨ Meteorological Observations
SEPT. 29.] THE NEW ZEALAND GAZETTE. 2431
Government Meteorological Observatory.
METEOROLOGICAL Observations, Wellington, for
the month of August, 1921. Observations taken
9 a.m.
Altitude of Observatory, 10 ft.
| Date. | Barometer reduced and corrected in Inches to Lat. 45°. | Max. Temp. in Shade. | Min. Temp. in Shade. | Mean Temp. in Shade. | Solar Radiation. | Terrestrial Radiation. | Velos. Wind, in Miles. | Amount of Cloud, 0 to 10. | Direction of Wind. | Rainfall in Points (100 to 1 Inch). |
|---|---|---|---|---|---|---|---|---|---|---|
| Fah. | Fah. | Fah. | Fah. | |||||||
| 1 | 29·138 | 54·9 | 49·2 | 52·0 | 107·0 | 46·3 | 213 | 10 | N.N.W | 16 |
| 2 | 29·188 | 55·5 | 47·2 | 51·3 | 118·0 | 42·5 | 390 | 7 | W N W | 19 |
| 3 | 29·230 | 55·8 | 48·7 | 52·2 | 107·0 | 45·0 | 388 | 4 | N.W. | 49 |
| 4 | 29·184 | 55·9 | 50·3 | 53·1 | 99·0 | 43·0 | 429 | 8 | N.W. | 88 |
| 5 | 28·902 | 56·4 | 46·2 | 51·3 | 89·0 | 43·7 | 469 | 1 | W N W | 4 |
| 6 | 29·209 | 56·2 | 41·9 | 49·0 | 109·0 | 35·3 | 186 | 8 | S. | 9 |
| 7 | 29·384 | 47·9 | 30·7 | 39·3 | 97·0 | 23·8 | 113 | 1 | N.W. | 7 |
| 8 | 29·808 | 52·3 | 31·7 | 42·0 | 104·0 | 21·4 | 246 | 0 | E. | 9 |
| 9 | 30·060 | 52·0 | 42·4 | 47·2 | 103·0 | 34·8 | 138 | 9 | Calm | Trace |
| 10 | 30·206 | 56·0 | 44·1 | 50·0 | 104·0 | 35·6 | 154 | 9 | N.N.E. | Trace |
| 11 | 30·174 | 58·5 | 51·3 | 54·9 | 110·0 | 45·8 | 299 | 10 | N.W. | |
| 12 | 30·363 | 59·0 | 47·7 | 53·3 | 61·0 | 41·8 | 287 | 10 | S | |
| 13 | 30·156 | 56·2 | 49·8 | 53·0 | 95·0 | 49·6 | 226 | 9 | N.W. | 6 |
| 14 | 29·901 | 55·0 | 51·0 | 53·0 | 94·0 | 46·8 | 493 | 4 | N.N.W | |
| 15 | 30·016 | 58·2 | 40·1 | 49·1 | 111·0 | 32·9 | 191 | 8 | S.S.W. | 22 |
| 16 | 30·032 | 49·7 | 43·1 | 46·4 | 63·0 | 42·8 | 404 | 10 | S. | |
| 17 | 30·161 | 51·5 | 34·7 | 43·1 | 131·0 | 29·0 | 131 | 1 | Calm | |
| 18 | 30·147 | 54·8 | 38·0 | 46·4 | 112·0 | 30·2 | 152 | 3 | N. | |
| 19 | 30·339 | 57·0 | 40·0 | 48·5 | 114·0 | 31·8 | 113 | 8 | N.N.E. | |
| 20 | 30·396 | 59·2 | 43·0 | 51·1 | 117·0 | 37·1 | 148 | 1 | N.E. | 6 |
| 21 | 30·369 | 57·3 | 49·0 | 53·1 | 114·0 | 45·1 | 247 | 2 | N. | |
| 22 | 30·486 | 57·0 | 34·2 | 45·6 | 111·0 | 26·2 | 83 | 0 | Calm | |
| 23 | 30·398 | 60·3 | 36·8 | 48·5 | 112·0 | 30·7 | 71 | 8 | N. | |
| 24 | 30·385 | 56·3 | 37·3 | 46·8 | 102·0 | 30·6 | 105 | 3 | S.E. | |
| 25 | 30·511 | 55·7 | 35·4 | 45·5 | 115·0 | 27·6 | 178 | 2 | S.E. | |
| 26 | 30·482 | 59 6 | 32·6 | 46·1 | 125·0 | 23·6 | 49 | 0 | Calm | |
| 27 | 30·337 | 57·8 | 33·2 | 45·5 | 109·0 | 25·0 | 40 | 0 | N.E. | |
| 28 | 30·163 | 56·9 | 45·9 | 51·4 | 112·0 | 43·8 | 229 | 8 | N. | 12 |
| 29 | 29·932 | 54·7 | 50·1 | 52·4 | 106·0 | 49·0 | 364 | 3 | N.W. | 18 |
| 30 | 29·978 | 57·0 | 42·8 | 49·9 | 113·0 | 44·8 | 283 | 10 | S.S.W. | 60 |
| 31 | 30·131 | 52·1 | 42·9 | 47·5 | 106·0 | 41·9 | 521 | 8 | S. | |
| * | 29·973 | 55·7 | 42·3 | 49·0 | 105·5 | 37·0 | 237 | 5·3 | 325 | |
| † | 29·948 | 54·4 | 42·8 | 48·6 | 94·9 | 35·7 | 215 | 447 |
- Means, &c. † Means previous years.
DIRECTION OF WIND.
N. N.E. E. S.E. S. S.W. W. N.W. Calm.
8 | 2 | 1 | 2 | 6 | .. | 2 | 6 | 4
NOTE.-A mild winter month, with barometric pressure,
temperatures, and sunshine above the mean, and precipitation 27 per cent. below the mean of previous years. Total bright sunshine, 177 hours 55 minutes, 55 per cent. of the possible, and three sunless days. The maximum atmospheric pressure for the month was 30·511 in. on the 25th, and the minimum 28·902 in. on the 5th. A heavy thunderstorm occurred on the 4th, fog on the 22nd, and hail fell on the 2nd, 4th, and 7th. Frost was recorded on the grass on eleven mornings. Mean earth temperature at 1 ft. was 47·7°, and 50·6° at 3 ft. Mean dew-point, 42·2°; mean elastic force of vapour, 0·269 in.; and mean relative humidity, 78 per cent. of saturation.
CLIMATOLOGICAL TABLE.
MEANS AND TOTALS FROM THE CHIEF STATIONS.
August, 1921.
| Altitude above Sea-level. | Name of Station and Observer. | Absolute Mean Air in Shade. | Mean Temp. | Mean Max.Temp. | Mean Min.Temp. | Total Rainfall (100 Points to the Inch). | Days with Rain (½ Point or more). |
|---|---|---|---|---|---|---|---|
| Ft. | Deg. | Deg. | Deg. | Points. | Dys | ||
| 125 | AUCKLAND F. A. F. Burnett | 52·6 | 58·2 | 47·1 | 259 | 16 | |
| 131 | RUAKURA FARM, HAMILTON EAST W. B. Monro | 49·2 | 59·3 | 39·1 | 296 | 12 | |
| 46 | TE AROHA G. F. McGirr | 50·2 | 57·0 | 43·5 | 268 | 16 | |
| 340 | WAHIHI C. F. Sims | 49·7 | 58·2 | 41·3 | 356 | 18 | |
| 100 | TAURANGA C. J. Butcher | 49·3 | 58·9 | 39·7 | 153 | 11 | |
| 925 | ROTORUA G. J. O'Brien | 47·2 | 56·1 | 38·3 | 399 | 13 | |
| NEW PLYMOUTH | 51·4 | 57·6 | 45·1 | 346 | 17 | ||
| 250 | MOUMAHAKI J. G. McFarlane | 47·7 | 56·2 | 39·3 | 620 | 16 | |
| 2080 | TAIHAPE A. R. Fannin | 43·2 | 49·2 | 37·3 | 377 | 19 | |
| 100 | PALMERSTON NORTH J. A. Colquhoun | 48·3 | 56·0 | 40·7 | 509 | 16 | |
| 119 | CENTRAL DEVELOPMENT FARM, WERAROA J. Beverley | 47·7 | 55·5 | 40·0 | 468 | 15 | |
| 70 | GREENMEADOWS, NA-PIER | 50·9 | 58·8 | 43·1 | 271 | 15 | |
| 377 | MASTERTON R. Brown | 47·3 | 56·5 | 38·1 | 414 | 13 | |
| 186 | GREYTOWN J. P. Eccleton | 47·3 | 56·8 | 37·9 | 390 | 14 | |
| TRENTHAM MILITARY HOSPITAL | 44·4 | 50·8 | 38·1 | 419 | 8 | ||
| 10 | WELLINGTON | 49·0 | 55·7 | 42·3 | 325 | 14 | |
| SOUTH ISLAND. | |||||||
| BRIGHTWATER Ven. Archdeacon Kempthorne | 46·1 | 55·9 | 36·3 | 292 | 11 | ||
| 34 | NELSON Wm. C. Davies | 47·5 | 56·4 | 38·6 | 247 | 12 | |
| 1220 | HANMER SPRINGS W. G. Morrison | 42·3 | 52·0 | 32·6 | 511 | 10 | |
| 25 | CHRISTCHURCH H. F. Skey | 45·3 | 53·9 | 36·7 | 119 | 10 | |
| 42 | LINCOLN Wm. C. Purdie | 46·2 | 56·4 | 36·0 | 141 | 6 | |
| 1220 | KISSELTON A. R. Blackwood | 43·6 | 53·2 | 34·0 | 421 | 10 | |
| RAKAIA Miss A. Hardy | 45·2 | 55·7 | 34·7 | 221 | 6 | ||
| 130 | TIMARU Caretaker of Domain | 44·8 | 53·5 | 36·1 | 133 | 7 | |
| 200 | WAIMATE F. Akhurst | 44·4 | 52·5 | 36·3 | 127 | 8 | |
| 300 | DUNEDIN D. Tannock | 44·2 | 49·1 | 39·4 | 235 | 12 | |
| 245 | GORE A. T. Newman | 43·2 | 52·2 | 34·3 | 192 | 18 | |
| 12 | HOKITIKA J. A. Chesney | 45·3 | 52·8 | 37·9 | 1571 | 22 | |
| 12 | INVERCARGILL L. Lennie | 43·5 | 51·8 | 35·3 | 365 | 21 | |
| LINCOLN, JULY, 1921 | 44·9 | 53·7 | 36·1 | 77 | 9 |
SUMMARY FOR THE MONTH OF AUGUST, 1921.
During the first week of August an intense and extensive Antarctic storm was responsible for high westerly winds and unsettled boisterous conditions. On the 4th and 5th atmospheric pressure as low as 28·60 in. occurred in southern parts of the South Island.
Thunderstorms were frequent while the storm lasted, and on the night of the 4th a severe one was experienced at Wellington.
With the change of wind to southerly, about the 6th, snow fell in many parts of the South Island and on high levels in the North.
The middle and end of the month proved somewhat unsettled on account of small depressions to the southward of New Zealand, but, except during the first week, the weather generally was under anticyclonic control, and proved very favourable for a winter month. Rainfall, however, was deficient over most of the Dominion, above-average totals only being recorded in the West Coast and southern districts of the South Island, and at a few westerly stations in the North.
D. C. BATES, Director.
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 1921, No 88
NZLII —
NZ Gazette 1921, No 88
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🏗️ Meteorological Observations for Wellington, August 1921
🏗️ Infrastructure & Public WorksWeather, Temperature, Rainfall, Wind, Wellington
- D. C. Bates, Director