270
Appendix 39
(Chapter 18: The Environment)
Climatological Summary, 1976
Maxi-
Mini-
Month
Mean pressure at mean sea level
mum air
Mean air
ture
tempera-tempera-tempera- point humidity of cloud sunshine
mum Mean Mean Mean Total air dew relative amount bright
Total rainfall
Prevailing wind] mean wind speed
Royal
Observa-
ture
ture
tory
millibars
°C
°C
°C
°C
per cent per cent
hours
mm
Waglan
Island
direction/knots
January
1 021.0
22.9
15.6
9.0
8.3
64
39
223.2
5.8
E/6.4 ENE/10.3
February
1 016.6
25.6
17.6
11.5
13,2
77
68
122,5
13.1
E/6.2 ENE/13.6
March
1 016.1
27.9
18.2
7.9
14.7
81
86
78.1
11.2
E/5.1 ENE/14.1
April
1 013.5
30.1
21.1
15.6
17.9
May
1 008.4
35.2
25.9
17.4
22.6
888
83
83
97.4
117.3
E/5.7 ENE/12.2
83
73
136.4
162.1
E/3.8 E/11.1
June
1 006.0
33.8
27.4
22.5
24.4
84
84
75
144.1
424.9 WSW/5.0 SW/11.7
July
1 006.1
33.9
28.1
24.4
24,9
83
67
183.0
426.8
August
1 007.3
34.1
27.9
22.1
24.8
84
60
213.4 765,3
E/7.5 SW/11.9
-E/5.4 E/11.4
September
1 008.6
32.6
26.8
21.9
22.7
79
65
147.0
204.7
E/6.9 E/16.4
October
1 014.4
29.9
24.9
20.8
20.7
78
66
151.9
64.1
E/6.2
E/15.9
November
1 019.5 27.7
19.1
11.8
11.1
62
46
203.1
0.8
N/4.7
N/16.0
December
1 019.4
26.2
17.3
5.7
11.8
71
50
183.4
1.1
E/4.5
N/12.9
Mean-
Total
1 013.1
22.5
18.1
77
65
E/5.6
E/13.1
-
1 883.5 2 197.2
Climatological Normals
(1884–1939; 1947–60)
Month
millibars °C*
°C
°C*
°C
per cent per cent hours
mm direction/knots
January
February
1 619.9
26.9
15.4
0.0 11.1
75
64
145.4
31.7
E/7.7 E/12.8
1 018.4
27.8
15.2
2.4 y 11.7
79
75
100.2
46.9
E/8.9 E/12,6
1
March
-
1 016.1
30.1
17.5
6.2
14.8
83
82
94.7
72.2
E/9.4 ENE/11.9
April
1 012.7
33.4
21.3
9.9
18.8
85
80
114.6 135.8
E/8.7 E/10.6
May
1 009.2
35.5
25.2
15.4
22.4
85
76
156.1 292.7
E/8.3 E/10.5
June
1 005.9
35.6 27.3
19.2
24.2
84
78
159,9 401.2
E/7.6 SW/11.6
July
1 004.9
35.7
27.9
22.2
24.7
83
August
1 004.9
36.1
27.7
21.6 24.6
84
989
69
213.7
371.7
E/6.8 SW/10.1
67
200.9
370.8
September
+
1 008.4
35.2 27.1
18.4 23.1
79
61
197.5 278.8
October
November
December
Mean
1 013.8 34.3 24.6
1 017.5 31.8 20.9
1 019.7 28.7 17.3
1 012.6
14.1 19.3
6.5 15.1
200
72
51
218.9
99.2
E/6,5 SW/9.9
E/7.8
E/8.5 E/14.4
E/11.7
69
53
187.9 43.1
E/7.8
E/14.4
4.3
11.9
70
55
172.6 24.9
E/7.2
N/13.6
22.3
18.5
79
68
E/7.9
E/12.0
Total
D
1963.1 2168.8
*1884-1939; 1947-76.
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