✨ Meteorological Observations
444
THE NEW ZEALAND GAZETTE.
[No. 12
Government Meteorological Observatory.
METEOROLOGICAL Observations, Wellington, for the month of December, 1920. Observations taken 9 a.m.
Altitude of Observatory, 10 ft.
| Date. | Barometer reduced and corrected in Inches to Lat. 45°. | From Self-regulating Instruments, for Twenty-four Hours previously. | Amount of Cloud, 0 to 10. | Direction of Wind. | Rainfall in Points (100 to 1 inch). | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Max. Temp. in Shade. | Min. Temp. in Shade. | Mean Temp. in Shade. | Solar Radiation. | Terrestrial Radiation. | Velos. Wind, in Miles. | |||||
| Fah. | Fah. | Fah. | Fah. | Fah. | ||||||
| 1 | 29·857 | 62·9 | 49·0 | 55·9 | 131·0 | 41·3 | 85 | 4 | N.N.W | .. |
| 2 | 29·571 | 60·0 | 52·8 | 56·4 | 131·0 | 47·0 | 426 | 7 | N.N.W | .. |
| 3 | 29·653 | 62·0 | 53·4 | 57·7 | 141·0 | 45·0 | 343 | 3 | N. | .. |
| 4 | 29·900 | 64·5 | 46·0 | 55·2 | 129·0 | 33·8 | 186 | 3 | N.N.W | .. |
| 5 | 29·889 | 64·8 | 55·0 | 59·9 | 125·0 | 49·8 | 376 | 1 | N.W. | .. |
| 6 | 29·790 | 65·8 | 56·0 | 60·9 | 131·0 | 51·6 | 405 | 9 | N.W. | 16 |
| 7 | 29·631 | 61·5 | 56·7 | 59·1 | 112·0 | 55·8 | 360 | 10 | N.W. | 12 |
| 8 | 29·610 | 64·3 | 59·8 | 62·0 | 151·0 | 58·9 | 531 | 10 | N.W. | .. |
| 9 | 29·942 | 65·9 | 54·1 | 60·0 | 141·0 | 51·6 | 289 | 10 | S. | .. |
| 10 | 29·921 | 64·8 | 52·1 | 58·4 | 138·0 | 42·0 | 185 | 10 | N.N.W | .. |
| 11 | 29·722 | 61·4 | 53·3 | 57·3 | 126·0 | 48·0 | 206 | 5 | N.N.W | 2 |
| 12 | 29·968 | 67·5 | 58·1 | 57·8 | 137·0 | 45·5 | 319 | 3 | S. | .. |
| 13 | 30·290 | 60·7 | 50·0 | 55·3 | 134·0 | 46·4 | 435 | 5 | S. | .. |
| 14 | 30·009 | 66·0 | 55·0 | 60·5 | 127·0 | 51·3 | 226 | 9 | N.W. | .. |
| 15 | 29·944 | 64·7 | 51·3 | 58·0 | 140·0 | 48·5 | 294 | 9 | S. | .. |
| 16 | 30·014 | 60·6 | 51·3 | 55·9 | 127·0 | 48·8 | 348 | 9 | E.N.E. | .. |
| 17 | 30·015 | 69·0 | 47·0 | 58·0 | 152·0 | 37·0 | 147 | 0 | N.E. | .. |
| 18 | 29·913 | 74·7 | 60·1 | 67·4 | 145·0 | 52·3 | 123 | 7 | N.W. | 8 |
| 19 | 29·936 | 72·1 | 58·0 | 65·0 | 144·0 | 56·0 | 450 | 7 | N.W. | .. |
| 20 | 29·961 | 66·3 | 59·0 | 62·6 | 139·0 | 54·5 | 383 | 3 | N.W. | .. |
| 21 | 30·035 | 69·7 | 55·9 | 62·8 | 134·0 | 52·0 | 339 | 4 | N. | .. |
| 22 | 29·840 | 70·9 | 57·1 | 64·0 | 135·0 | 51·0 | 304 | 6 | N.W. | 3 |
| 23 | 29·780 | 63·6 | 56·6 | 60·1 | 136·0 | 55·0 | 493 | 9 | S. | .. |
| 24 | 29·905 | 63·3 | 45·1 | 54·2 | 136·0 | 36·0 | 228 | 2 | N.E. | .. |
| 25 | 29·757 | 66·5 | 56·8 | 61·6 | 130·0 | 51·0 | 352 | 1 | N.N.W | .. |
| 26 | 29·817 | 68·8 | 61·9 | 65·3 | 132·0 | 58·5 | 430 | 5 | N.N.W | .. |
| 27 | 29·762 | 71·8 | 59·8 | 65·8 | 140·0 | 58·0 | 483 | 10 | N.W. | 126 |
| 28 | 29·751 | 68·2 | 55·4 | 61·8 | 143·0 | 55·0 | 251 | 10 | S. | .. |
| 29 | 29·818 | 68·5 | 49·7 | 59·1 | 136·0 | 44·5 | 159 | 10 | E.N.E. | .. |
| 30 | 29·853 | 69·5 | 59·3 | 64·4 | 144·0 | 52·0 | 215 | 1 | N.W. | .. |
| 31 | 29·809 | 70·6 | 60·2 | 65·4 | 133·0 | 59·0 | 300 | 4 | N. | .. |
| * | 29·860 | 66·2 | 54·4 | 60·3 | 135·5 | 49·6 | 312 | 6·0 | .. | 167 |
| † | 29·863 | 66·9 | 53·8 | 60·3 | 124·6 | 46·9 | 277 | .. | .. | 321 |
- Means, &c.
† Means previous years.
DIRECTION OF WIND.
N. N.E. E. S.E. S. S.W. W. N.W. Calm.
10 | 2 | 2 | .. | 6 | .. | .. | 11 | ..
NOTE.—A fine summer month, with moderate to strong N. and N.W. winds prevailing, and precipitation 48 per cent. below the mean of previous years. Total bright sunshine 218 hours 56 minutes, and two sunless days, giving an average of 7 hours 4 minutes per diem. Mean earth-temperature at 1 ft. was 64·8°, and 60·9° at 3 ft.; mean dew-point, 51·1°; mean elastic force of vapour, 0·375 in.; and mean relative humidity, 72 per cent. of saturation.
CLIMATOLOGICAL TABLE.
MEANS AND TOTALS FROM THE CHIEF STATIONS.
December, 1920.
| Altitude above Sea-level. | Name of Station and Observer. | Absolute Mean Temp. Air in Shade. | Extremes. | Total Rainfall (100 Points to the Inch). | Days with Rain (¼ Point or more). | |
|---|---|---|---|---|---|---|
| Mean Max. Temp. | Mean Min. Temp. | |||||
| Ft. | Deg. | Deg. | Deg. | Points. | Dys. | |
| 125 | NORTH ISLAND. |
AUCKLAND
F. A. F. Burnett | 62·9 | 68·6 | 57·2 | 317 | 12 |
| 46 | TE AROHA ..
G. F. McGirr | 59·9 | 69·5 | 50·4 | 382 | 14 |
| 925 | ROTORUA ..
G. J. O’Brien | 62·0 | 72·3 | 51·8 | 279 | 10 |
| 340 | WAIHI ..
C. F. Sims | 64·2 | 74·3 | 54·2 | 949 | 13 |
| .. | TAURANGA ..
C. J. Butcher | 62·1 | 72·6 | 51·6 | 208 | 7 |
| 160 | NEW PLYMOUTH | .. | .. | .. | .. | .. |
| 250 | MOUMAHAKE
J. G. McFarlane | 59·4 | 67·7 | 51·1 | 137 | 9 |
| 2080 | TAIHAPE ..
A. R. Fannin | 57·1 | 66·4 | 47·9 | 179 | 7 |
| 100 | PALMERSTON NORTH,.
J. A. Colquhoun | 58·8 | 67·7 | 50·0 | 123 | 8 |
| 119 | CENTRAL DEVELOPMENT
FARM, WERAROA
J. Beverley | 58·8 | 66·0 | 51·7 | 268 | 10 |
| 186 | GREYTOWN
J. P. Eccleton | 61·5 | 73·5 | 49·5 | 201 | 4 |
| 377 | MASTERSTON
R. Brown | 61·3 | 72·9 | 49·8 | 132 | 5 |
| 70 | GREENMEADOWS, NA-
PIER
T. B. McBreen | 65·4 | 75·5 | 55·3 | 139 | 5 |
| .. | TRENTHAM MILITARY
HOSPITAL | 57·4 | 63·8 | 51·1 | 236 | 5 |
| 10 | WELLINGTON | 60·3 | 66·2 | 54·4 | 167 | 6 |
| .. | SOUTH ISLAND.
BRIGHTWATER
Ven. Archdeacon
Kemphorne | 62·2 | 73·6 | 50·8 | 213 | 5 |
| 34 | NELSON ..
Wm. C. Davies | 61·5 | 71·1 | 51·9 | 220 | 7 |
| 1220 | HANMER SPA
L. Bayfield | 60·0 | 71·0 | 49·0 | 160 | 3 |
| 25 | CHRISTCHURCH
H. F. Skey | 59·9 | 70·0 | 49·8 | 145 | 7 |
| 42 | LINCOLN* ..
L. J. Wild | 59·2 | 71·4 | 47·1 | 179 | 3 |
| 1220 | KISSELTON ..
A. R. Blackwood | 58·6 | 70·0 | 47·3 | 165 | 4 |
| .. | RAKAIA ..
Miss A. Hardy | 60·7 | 72·6 | 48·8 | 140 | 3 |
| 130 | TIMARU ..
Caretaker of Domain | 60·8 | 73·1 | 48·6 | 139 | 4 |
| 200 | WAIMATE ..
F. Akhurst | 58·8 | 69·2 | 48·5 | 196 | 5 |
| 300 | DUNEDIN ..
D. Tannock | 57·4 | 65·9 | 48·9 | 186 | 13 |
| 245 | GORE ..
A. T. Newman | 54·5 | 64·4 | 44·6 | 206 | 15 |
| 12 | HOKITIKA ..
J. A. Chesney | 56·0 | 62·3 | 49·7 | 1086 | 13 |
| 12 | INVERCARGILL
L. Lennie | 54·7 | 63·1 | 46·3 | 384 | 20 |
- Temperatures, mean for 20 days only.
SUMMARY FOR THE MONTH OF DECEMBER, 1920.
The aggregate rainfall for December was above the mean in the western half of the South Island and in the Taranaki and Auckland districts of the North Island, while in all the East Coast districts a considerable deficiency occurred.
Strong northerly and westerly winds and changeable conditions were experienced during the first half of the month, when westerly low-pressure areas dominated.
Between the 15th and 17th high easterly winds and stormy weather prevailed in the Auckland Peninsula, while a cyclone centre passed northwards of New Zealand.
Good general rains fell on the 27th, which were especially welcome to the East Coast districts, coming after a period of warm, dry, and windy conditions.
The weather on the whole was fair, but vegetation required more rainfall in districts with an easterly aspect. Temperatures were invariably high during the last week.
D. C. BATES, Director
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Online Sources for this page:
VUW Te Waharoa —
NZ Gazette 1921, No 12
NZLII —
NZ Gazette 1921, No 12
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🏗️ Meteorological Observations for Wellington, December 1920
🏗️ Infrastructure & Public WorksWeather, Temperature, Rainfall, Wind, Wellington
- D. C. Bates, Director