Otago Provincial Gazette – 1870 – No. 668

Page 286

✨ Meteorological Observations



ABSTRACT OF METEOROLOGICAL OBSERVATIONS TAKEN AT DUNEDIN, OTAGO, NEW ZEALAND, FOR THE YEAR 1869, DAILY, AT 9 A.M. N.Z. MEAN TIME.

Latitude. 45° 52' 11" S. Longitude. 170° 31' 7" E. Altitude above Sea Level. 550 Feet. Distance from Sea. 3 Miles.

MONTHS. ATMOSPHERIC PRESSURE. TEMPERATURE. EXPOSED THERMOMETERS. MEAN DEW POINT. MEAN HUMIDITY SATURATION = 100. RAIN. WIND. (At 9 A.M.) REMARKS.
Barometer (Reduced to 32°F. and Sea Level). From Self-Registering Instruments, Fahr. Scale. From Month. Minimum for Month. Mean Daily Range for Month.
Mean for Month. Highest Reading. Date. Lowest Reading. Date. Approx. Range for Month. Mean Temperature for Month. Mean Maximum for Month.
1869 In. In. In. °Fahr. °Fahr. °Fahr.
Jan. 29.886 30.044 9 29.623 28 0.421 58.2 64.0
Feb. 30.066 30.149 27 29.947 4 0.202 57.8 64.0
Mar. 29.937 30.130 16 29.707 24 0.423 55.2 64.0
April 30.080 30.430 1 29.640 29 0.790 51.7 58.2
May 29.883 30.189 21 29.627 24 0.562 46.0 53.0
June 29.941 30.370 22 29.389 10 0.981 41.9 48.0
July 29.965 30.304 14 29.558 7 0.746 40.8 46.2
Aug. 29.925 30.298 19 29.508 10 0.730 43.0 49.0
Sept. 29.911 30.346 19 29.428 2 0.918 48.7 55.0
Oct. 29.925 30.284 18 29.379 22 0.905 51.4 58.0
Nov. 29.802 30.132 2 29.253 28 0.879 53.7 60.7
Dec. 29.979 30.381 21 29.623 29 0.758 57.6 64.0

| Year | 29.938 | 30.462 | 8 | 29.253 | 28 | 1.209 | 50.6 | 57.6 | 78.2 | Jan. | 42.5 | 28.0 | July | 13.5 | 40.4 | 159 | 219 | 106 | 17.1 | 80.4 | 168 | 32 | 9 | 18 | 24 | 47 | 18 | 14 | 27 | 35 | 87 | 169.98 | On 91 days out of the 168 days on which rain fell, the amount collected did not exceed one-tenth (0.1) inch. |

The barometrical readings are corrected for index error, capillary action, and reduced to 32°Fah. and sea level.
The observations are corrected for index error, ascertained by comparison with a standard from Kew.
The temperatures of the dew point, the elastic force of vapour, and degrees of humidity, are computed from the simultaneous observations of the wet and dry bulb thermometers.
In making the preceding tables, it should be borne in mind that all self-registering instruments are read off at the morning observation, and therefore the results noted occurred during the preceding 24 hours.

Henry Skey, Observer.




Online Sources for this page:

VUW Te Waharoa — PDF Otago Provincial Gazette 1870, No 668




✨ LLM interpretation of page content

🎓 Abstract of Meteorological Observations for Dunedin, 1869

🎓 Education, Culture & Science
Weather, Climate, Temperature, Rainfall, Wind, Dunedin, Otago, New Zealand, 1869
  • Henry Skey, Observer