View report page

28
Atmospheric Conditions 1963
Table 21
January
February
March
April
May
1 line
July
August
September
October
November
December
Temperature—
Mean maximum1
°c
0.6
2.2
9.9
13.2
15.4
20.0
20.6
19.2
17.5
14.2
11.7
5.4
12.5
Mean minimum1
°C
—2.7
—1.4
4.0
6.3
7.8
11.9
12.3
12.2
10.8
9.2
7.1
1.8
6.6
Mean1
°C
—1.1
0.4
6.9
9.7
11.6
15.9
16.5
15.7
14.1
11.7
9.4
3.6
9.5
Diff. from average1
°C
—5.3
—4.0
+ 0.3
+ 0.4
-0.9
Nil
—1.1
—1.5
—0.7
+ 0.9
+ 2.1
— 1.6
—1.0
Highest maximum2
°C
6.0
5.0
14.0
19.0
20.0
26.0
27.0
25.0
22.0
18.0
15.0
9.0
27.0
Lowest minimum2
°C
—12.0
—5.0
—4.0
1.0
5.0
9.0
12.0
10.0
9.0
6.0
2.0
— 6.0
—12.0
Rainfall—
Total2
in.
1.46
0.59
2.01
1.93
1.65
1.38
1.42
1.97
2.01
1.46
2.76
0.47
19.11
Percent of average1
36
16
158
107
84
112
52
103
113
67
180
33
88
Sunshine'
Daily mean
hrs.
1.59
2.53
3.35
4.53
6.6!
6.72
6.58
4.64
4.23
2.92
2.07
1.39
3.93
Percent of average
107
112
92
85
103
95
103
76
89
93
117
109
98
Wind1
NE/E/SE
%
57
64
26
28
14
29
27
10
26
18
22
45
31
S/SW/W
%
14
10
59
56
55
58
60
70
42
72
60
25
48
NW/N/Calm
0/
%
29
26
15
16
31
13
13
20
32
10
18
30
21
Atmospheric pollution—
West Division3 :
Water insol. matter
tpm
4.92
23.96
18.22
11.85
11.92
12.90
17.38
14.14
16.80
16.00
12.01
12.82
14.41
Water sol. matter
tpm
10.75
16.62
5.42
6.45
3.92
4.46
5.17
4.82
void
13.87
5.88
4.74
5.65
Sulphur ...
†
3.13
2.36
1.71
1.62
0.94
0.80
0.65
0.63
0.75
1.02
1.46
2.29
1.45
Smoke, daily average
*
226
306
99
71
23
21
13
24
50
60
85
221
100
„ maximum
*
848
628
456
208
79
51
27
74
104
122
324
424
-
,, minimum
*
40
76
16
20
5
7
3
6
12
24
12
92
-
Sulphur, daily average
*
386
326
129
163
84
101
77
61
137
142
139
298
170
„ maximum
*
1018
640
471
366
194
245
189
177
281
273
439
678
minimum
*
120
140
33
41
38
25
36
28
35
73
43
115
—
North Division4 :
Smoke, daily average
*
186
230
94
56
28
23
11
24
48
44
66
169
82
„ maximum
*
756
440
326
140
109
52
29
72
105
109
270
396
-
,, minimum
*
16
64
26
14
9
8
3
7
12
19
10
66
-
Sulphur, daily average
*
205
167
73
81
51
65
53
63
83
91
57
123
93
,, maximum
*
470
421
353
284
96
129
116
134
195
160
168
321
-
„ minimum
*
65
73
17
32
18
24
31
17
24
43
19
20
-
South Division5
Water insol. matter
tpm
4.06
9.41
18.56
10.77
11.23
11.13
9.55
16.60
6.80
5.80
7.45
10.42
10.15
Water sol. matter
tpm
15.93
7.77
7.29
8.16
0.45
4.70
14.54
12.89
9.85
4.06
7.17
5.00
8.48
Sulphur
2.88
2.30
0.90
1.14
0.79
9.78
0.48
0.36
0.79
0.74
0.74
1.93
1.15
Smoke, daily average
*
209
277
95
46
81
27
12
17
37
51
76
197
89
„ maximum
*
724
508
428
136
81
64
27
59
122
124
284
440
-
minimum
*
12
48
16
12
6
8
2
3
13
12
11
72
-
Sulphur, daily average
*
381
313
124
159
94
9/
73
62
133
128
136
308
167
,, maximum
*
1034
611
349
529
229
134
194
170
282
337
438
678
-
„ minimum
*
109
102
30
34
48
39
25
26
46
68
43
99
-
Weather summary
Very cold
but dry
Very cold
but dry
Wet;
otherwise
average
Dull;
changeable
Change*"
and cool 1
Settled
Dry and
cool
Dull and
cool
Cool and
moist
Dry and
mild
Cool and
moist
Cold and
dry
Notes : 'Kew ; ;Lewisham ; :,Valentine Court for smoke and sulphur, Pool allotments for ° ■gon Place for smoke and sulphur ; 4Pendragon school for smoke and sulphur, Verdant Lane for other:
tpm : tons per square mile per month ; fas trioxide in mg per 100 sq. cms. p ■ grammes per cubic metre.