Meteorological Observations




RESULTS OF METEOROLOGICAL OBSERVATIONS

deduced from
Daily Registers kept at the Government Station, Christchurch, for December, 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 ... 29.712 inches
Highest pressure (on 30th) 30.214 "
Lowest pressure (on 6th) 29.234 "

Temperature in Shade—

Approx. mean temperature for month ... 56.7 Fah.
Mean of highest daily temperature ... 66.2 "
Mean of lowest daily temperature ... 47.2 "
Highest in month (on 8th) 74.9 "
Lowest in month (on 4th) 36.9 "
Mean daily range ... 19.0 "
Mean temperature of evaporation ... 52.4 "

Solar Radiation—

Mean ... 134.4 "
Highest in month (on 22nd) 155.3 "

Terrestrial Radiation—

Mean ... 34.4 "
Lowest in month (on 4th) 21.9 "

Hygrometer (deductions)—

Mean temperature of dew point ... 48.4 "
Mean tension of vapour ... 0.340 inches
Mean humidity (Saturation = 100) ... 74

Rain—

Total rainfall on 10 days ... 1.729 inches
Greatest rainfall on one day registered at 9:30 a.m. for previous 24 hours (on 17th) 0.563 "

Wind—

Mean velocity in miles per day ... 157 miles
Greatest velocity in miles per day, registered at 9:30 a.m. for previous 24 hours (on 3rd) ... 232 "

Cloud—

Mean amount at 9:30 a.m. (0 = clear, 10 = overcast) 5.7

Evaporation—

Total ... 6.228 inches

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

N. N.E. S.E. S. S.W. W. N.W. Calm.
2 9 10 1 2 6 1 0

Remarks.

The rainfall was about the average for this month; a considerable amount of cloudy weather was experienced. On the 4th there was a heavy hail storm from the S.W., and on the 16th a storm from the N., accompanied by thunder and lightning.

R. MAINWARING,
Observer, Christchurch.



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Online Sources for this page:

VUW Te Waharoa PDF Canterbury Provincial Gazette 1871, No 3





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🎓 Meteorological Observations for December 1870

🎓 Education, Culture & Science
Meteorology, Weather, Temperature, Rainfall, Wind, Christchurch
  • R. Mainwaring, Observer, Christchurch