APPENDIX 45
(Chapter 24: The Environment)
Climatological Summary, 1993
APPENDICES
Month
Mean pressure at mean sea level
Maxi-
mum
air tem-
Mean air tem-
Mini-
mum
Mean
Mean
Mean
Total
Prevailing
Mean
air tem-
dew
relative
amount
bright
Total
wind
wind
perature
perature
perature
point
humidity
of cloud
sunshine
rainfall
direction
speed
hectopascals
°C
°C
°C
°C
per cent
per cent
hours
mm
degrees
km/h
January
1 021.3
23.7
14.6
5.4
9.6
74
61
132.8
33.5
030
25.9
February
1 019.1
23.4
18.0
12.8
13.9
78
60
126.7
1.0
090
24.6
March
1 016.8
28.1
19.4
11.3
16.2
82
87
77.3
49.0
090
23.5
April
1 013.9
29.8
21.8
14.6
19.3
86
85
81.3
136.3
090
23.4
May
1 010.3
31.7
26.0
20.6
23.0
84
73
162.8
338.4
090
16.7
June
1 006.2
33.0
28.3
23.6
25.2
84
July
1 005.9
33.5
29.4
24.3
25.3
August
1 006.1
33.4
28.6
25.0
25.1
September
1 009.4
32.1
27.5
22.6
23.5
October
1 016.2
29.0
24.6
17.2
18.3
November
1 016.9
27.8
21.7
11.9
16.9
December
1 021.5
25.3
17.1
9.2
10.5
Year
1 013.6
33.5
23.1
5.4
18.9
2 2 2 2 5 2
79
82
79
69
76
67
78
* K 08 80 8
84
139.5
485.2
200
20.6
75
259.8
213.7
240
24.0
63
211.5
182.8
100
21.7
59
172.8
655.9
090
24.6
49
198.4
87.8
080
28.4
66
131.2
144.6
080
31.1
53
165.8
15.7
020
30.0
68
1 859.9
2 343.9
090
24.5
Climatological Normals (1961-1990)
Month
hectopascals
°C⭑
1°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
1016.2
30.1
18.5
4.8
15.0
81
76
96.4
66.9
070
22.1
April
1013.1
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
October
1 014.0
34.3
25.2
13.5
19.8
November
1 017.9
31.8
21.4
6.5
15.2
December
1 020.2
28.7
17.6
4.3
11.2
Year
1 012.9
36.1
23.0
0.0
18.6
2238 E
78
63
181.7
299.7
090
21.9
73
56
195.0
144.8
090
27.6
69
53
181.5
35.1
080
27.2
68
49
181.5
27.3
080
25.5
77
65
1948.1
2 214.3
080
22.6
Note: * These extreme values are for the period 1884–1939; 1947–1993.
497