APPENDIX 50
(Chapter 24: The Environment)
Climatological Summary, 1994
APPENDICES
Month
Mean
pressure at mean
sea level
Maxi-
mum
air tem-
Mean air tem-
Mini-
mum
Mean
air tem-
dew
perature
perature
perature
point
Mean relative humidity
Mean
Total
Prevailing
Mean
amount
bright
Total
of cloud
sunshine
rainfall
wind direction
wind
speed
hectopascals
°C
°C
°C
°C
per cent
per cent
hours
mm
degrees
km/h
January
1 018.9
24.3
17.0
7.9
11.8
72
52
154.5
Trace
070
25.7.
February
1 015.8
25.1
17.3
11.7
14.4
84
March
1 018.5
25.3
17.8
11.4
13.4
77
**
84
47.2
50.5
030
28.5
84
72.7
26.5
030
28.2
April
1 011.8
31.6
24.7
18.1
21.3
May
1 008.6
32.9
27.4
21.1
23.0
June
1 005.8
33.2
28.0
24.3
24.5
July
1 003.1
34.1
27.9
22.9
25.3
August
1 005.4
32.6
27.9
23.5
24.8
September
1 009.7
31.9
27.1
23.1
23.9
* * * * * *
82
69
171.5
6.0
080
18.5
78
73
186.1
183.7
090
21.3
82
80
107.8
290.2
200
31.2
86
78
136.4
1 147.2
110
24.3
84
78
138.8
597.6
240
21.7
83
73
124.8
298.9
090
23.5
October
1 015.5
31.1
24.9
16.5
18.1
67
36
267.7
2.2
090
26.1
November
1 019.5
27.1
22.9
19.9
17.8
74
41
224.8
0.2
090
26.9
December
1 019.8
25.7
19.8
13.7
16.4
81
82
70.2
122.6
020
29.0
Year
1 012.7
34.1
23.6
7.9
19.6
79
69
1 702.5
2 725.6
090
25.4
Climatological Normals
(1961-1990)
Month
hectopascals
*C*
°C
°C*
°C
per cent
per cent
hours
mm
degrees
km/h
January
1 020.2
26.9
15.8
0.0
10.2
71
58
152.4
23.4
070
24.0
[
February
1 018.7
27.8
15.9
2.4
11.8
78
73
97.7
48.0
070
23.8
March
1 016.2
30.1
18.5
4.8
15.0
81
76
96.4
66.9
070
22.1
April
1 013.1
33.4
22.2
9.9
19.0
83
78
108.9
161.5
080
19.7
May
1 009.1
35.5
25.9
15.4
22.6
83
74
153.8
316.7
090
19.2
June
1 006.0
35.6
27.8
19.2
24.4
82
75
161.1
376.0
090
21.6
July
1 005.3
35.7
28.8
21.7
24.9
80
65
231.1
323.5
230
20.0
August
1 005.1
36.1
28.4
21.6
24.8
81
66
207.0
391.4
090
18.5
September
1 008.8
35.2
27.6
18.4
23.3
78
63
181.7
299.7
090
21.9
October
1 014.0
34.3
25.2
13.5
19.8
73
56
195.0
144.8
090
27.6
November
1 017.9
31.8
21.4
6.5
15.2
69
53
181.5
35.1
080
27.2
December
1 020.2
28.7
17.6
4.3
11.2
68
49
181.5
27.3
080
25.5
Year
1 012.9
36.1
23.0
0.0
18,6
77
65
1 948.1
2 214.3
080
22.6
Note: * These extreme values are for the period 1884–1939; 1947–1994.
525
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