Canterbury Provincial Gazette – 1870 – No. 37

Page 138

✨ Meteorological Observations

136

RESULTS OF METEOROLOGICAL OBSERVATIONS deduced from Daily Registers kept at the Government Station, Christchurch, for July, 1870.

Latitude, 43 deg. 32 min. 16 sec. S.; Longitude, 172 deg. 38 min. 59 sec. E.

Height above Sea, 21 feet; distance from Sea, 5 miles.

Barometer (corrected and reduced to 32 deg., Fah.)—

Mean atmospheric pressure for month ... 30·060 inches

Highest pressure (on 27th) 30·426 ,,

Lowest pressure (on 24th) 29·267 ,,

Temperature in Shade—

Approx. mean temperature for month ... 41·8 Fah.

Mean of highest daily temperature ... 49·3 ,,

Mean of lowest daily temperature ... 34·3 ,,

Highest in month (on 2nd) 57·5 ,,

Lowest in month (on 16th) 26·4 ,,

Mean daily range ... 15·0 ,,

Mean temperature of evaporation ... 40·2 ,,

Solar Radiation—

Mean ... 87·6 ,,

Highest in month (on 29th) 106·3 ,,

Terrestrial Radiation—

Mean ... 22·3 ,,

Lowest in month (on 4th, 5th) 18·7 ,,

Hygrometer (deductions)—

Mean temperature of dew point ... 38·2 ,,

Mean tension of vapour ... 0·231 inches

Mean humidity (Saturation =100) ... 88

Rain—

Total rainfall on 12 days ... 2·255 inches

Greatest rainfall on one day registered at 9·30 a.m. for previous 24 hours (on 28th) 1·377 ,,

Wind—

Mean velocity in miles per day ... 102 miles

Greatest velocity in miles per day, registered at 9·30 a.m., for previous 24 hours (on 28th) ... 302 ,,

Cloud—

Mean amount at 9·30 a.m. (0=clear, 10=overcast) ... 4·7 ,,

Evaporation—

Total ... 1·789 inches

Number of days on which the wind blew from each point at 9·30 a.m.—

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

0 2 4 1 0 19 2 1 2

REMARKS.

The temperature of the month was 1·3 deg. lower than the average for the same month during the previous six years. The rainfall was not in excess of the average. The weather was, as a rule, very fine and calm to the 27th, when for two days it rained heavily, in part from the S.W., but mostly from the N.E. During these two days water fell to the depth of upwards of an inch-and-a-half.

R. MAINWARING,
Observer, Christchurch.

CHRISTCHURCH :

Printed under the authority of the Provincial Government of the Province of Canterbury, at the Lyttelton Times Office, Gloucester Street, by William Reeves, Official Printer for the time being to the said Government.

Online Sources for this page:

VUW Te Waharoa — Canterbury Provincial Gazette 1870, No 37

The Canterbury Provincial Council Buildings (depicted) were constructed between 1858 and 1865 and are the only purpose-built provincial government buildings in New Zealand still in existence.

✨ LLM interpretation of page content

🎓 Meteorological Observations for Christchurch, July 1870

Domain🎓 Education, Culture & Science
KeywordsWeather, Temperature, Rainfall, Wind, Christchurch, July 1870
👩‍💼 Officials

R. Mainwaring, Observer, Christchurch

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Additional Sources

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