A TABLE showing the variations of the Thermometer and Barometer at Perth, Western Australia, from 1st January to 31st December 1831.
Dates.
Thermometer.
Barometer.
Prevailing Winds.
WEATHER.
Max.
Med.
Min.
Max.
Med.
Min.
Jan.
Feb.
March
April
May
June
July
Aug.
Sep.
Oct.
Nov.
Dec.
106
87
68
102
82
62
96
78
60
98
73
48
78
61
44
70
52
38
67
50
33
76
59
42
78
51½
45
79
63½
48
95
74½
54
96
78
60
30.10
29.91½
29.72½
30.20
30.02½
29.85
30.20
30.05
29.92
30.25
30.10
29.95
30.40
30.15
29.90
30.30
29.90
29.50
30.40
30.05
29.70
30.40
30.10
29.80
30.30
30.10
29.70
30.40
30.07½
29.75
30.15
29.90½
29.66
30.25
30.07½
29.90
N. by N. E. & S. W.
N. E. & S. W.
N. E. & S. W.
E. N. E. & S. W.
N. & S. W.
W. & N. E.
N. & S. W.
N. E. & S. W.
W. & N. E.
N. E. & S. W.
W. & S. W.
N. E. & S. W.
Generally fine and very sultry.
Thunder on 7th, 13th, and 14th, with rain on these days. Remainder of month fine.
Rain on 27th and 28th, at full moon; remainder fine.
Fine, with the exception of three rainy days.
Much rain, and heavy dews.
Lightning and thunder 8th, 12th, and 13th; frequent showers, but neither long continued nor heavy.
The greater part fine. Severe thunder-storm on 8th, ice on 9th, thunder on 16th.
A good deal of rain. A strong gale on the 5th.
Mostly cloudy and occasional showers. Thunder on the 2nd, 10th, and 19th.
Variable, cloudy, and rainy for the greater part.
Squally, cloudy, and rainy at beginning. Latter part fine.
Generally fine, a regular land and sea breeze, with a little rain.
N. B. The Thermometer stood in a thatched hut, not well situated to receive the sea breeze. In comparison with one kept in a brick house near the river, a difference of 15 degrees was observable, being so much lower during the hot months in the latter, especially during the prevalence of the sea breeze. The observations were taken at 7 in the morning, 2 in the afternoon, and 7 in the evening.(Signed.)W. Milligan, M. D., 63rd Regiment.
