View report page

111
METEOROLOGY.
The mean temperature of the air at Greenwich in 1882 was
490.7 Fahrenheit, or 0.3 above the average of 41 years. The
means of the four quarters respectively were 42°.7, 53°.0,
58°.1 and 440.8. The highest reading by day (81°.0) was registered
in the week ending August 12th, and the lowest
reading by night (220.2) in the week ending December 16th ;
the means of the highest readings by day, in the four quarters
respectively, being 57.8, 72.1, 76.9 and 62.7, and the
means of the lowest readings, by night, 26.3, 35.7, 42.1 and
25.7. The hottest week in the year was that which
ended August 5th, (62.5), and the coldest week that which
ended December 16th (34.l). July was the hottest month,
mean temperature 60.4, and December was the coldest
month, mean temperature 40.1. May was characterised by the
greatest range in temperature, viz.: 42.0—from 76.5 to 34.5,
while January exhibited the smallest range, viz.: 27.5—from
52.9 to 25.4. The dryness of the atmosphere, i.e., the difference
between the dew-point temperature and air-temperature
was 5.0 ; the average of 41 years being 5.6. Rain fell on
1 79 days, the total amount registered in the year being 25.16
inches, the average of 41 years being 25.09 inches. Most rain
fell in October, 5.42 inches, and least rain in February and
March, 1.14 inches. The means of the readings of the barometer
were 29.758 inches; the means of January, 30.185 inches, and
of December 29.493 inches, being respectively, highest and
lowest.
VACCINATION.
Table X (Appendix) is a return respecting the vaccination
of children whose births were registered in 1882, and for it I
am indebted to Mr. Shattock, the Vaccination Officer, whose
energetic discharge of the duties of his appointment it has
always afforded me pleasure to recognise. The return show