WAARNEMINGEN TE KATWIJK a/RIJN 
SEPTEMBER 1918. 
Temperatuur °C 
Dampd 
rukking m M. 
Betr. Vochtigheid % 
Windrichting en 
kracht. 
Bewolking ( 
-10 
Temperatuur 
°C. 
Dampdrukking 
; m.M. 
Betr. Vochtigheid % 
Windrichting en kracht. 
Bewolking 0 
-10 
8 uur 
2 uur 
7 uur 
Maxi- 
Mini- 
8 uur 
2 uur 
7 uur 
8 uur ! 2 uur 
7 uur 
6 uur 
2 uur 
7 uur 
8 uur 
2 uur 
7 uur 
Neer- 
8 uur 
2 uur 
7 uur 
Maxi- 
Mini- 
8 uur 
2 uur 
7 uur 
8 uur 
2 uur 1 
7 uur 
8 uur 
2 uur 
7 uur 
8 uur j 
2 uur 
7 uur 
j?2 « 
v.m 
nm. 
n.m. 
mum. 
mum. 
vm. 
n m. 
nm. 
v.m. n.m. 
n.m. 
v.m. 
n.m. 
n.m. 
v.m. 
nm. 
n.m. 
slag. 
v.m. 
n.m. 
n.m. 
mum. 
mum. 
vm. 
n.m. 
n.m. 
v.m. 
n.m. 
n.m. 
v.m. 
n.m. 
nm. 
v.m. 
n.m. 
n.m. 
J Ê 0 
Z - ^ 
1 
12.8 
14.7 
14.8 
17.2 
11.1 
7.7 ! 
7.4 
7.4 
70 ! 59 
59 
W 5 
WZW 5 
WZW 6 
5 
5 
7 ■ 
1.9 
8.2 
10.4 
9.2 
11.4 
6.8 
6.7 
5.6 
6.4 
82 
59 ! 
74 
NW 3 
NW 4 
NW 5 
9 
7 
9 
11.1 
2 
14.4 
17.6 
13.8 
15.8 
12.3 
9.4 
8.7 
9.1 
77 59 
78 
W 5 
WZW 7 
WZW 6 
9 
9 
6 
1.5 
10.8 
11.4 
11.9 
11.8 
6.7. 
8.4 
8.7 
9.1 
89 
87 
89 
W 3 
W 4 
W 3 
10 
10 1 
10 
7.5 
3 
13.9 
17.0 
15.0 
17.6 
11.9 
10.1 
12.8 
10.9 
86 89 
86 
WZW 3 
WZW 4 
ZW 3 
7 
5 
1 
2.2 
11.4 
13.6 
11.2 
12.6 
9.4 
9.4 
10.3 
9.0 
95 
89 
92 
ZZW 2 
ZW 4 
ZZW 2 
10 
9 
3 
1.3 
4 
13.8 
16.1 
13.0 
1 7.S 
10.8 
10.8 
8.6 
10.2 
93 63 
93 
Z 2 
NW 1 
NO 1 
10 
10 
10 
9.6 | 
1 1.0 
11.6 
13.8 
7.0 
8.4 
9.4 
7.0 
95 
96 
69 
Z 2 
WNW 3 
N 4 
9 
10 
; 2 
0.1 
5 
11.9 
13.3 
12.0 
16.9 
1 1 3 
9.6 
10.6 
9.8 
94 94 
95 
N 2 
0 3 
NO 2 
10 
10 
0 
2.3 
11.4 , 
10.3 
1 1.8 
13.9 
8.8 
6.8 
8.7 
9.4 
67 
94 
' 93 
ZW 4 
Z 5 
ZW 5 
10 
10 
10 
1.1 
6 
10.8 
19.6 
13.2. 
13.8 
7.8 
8.3 
11.8 
10.6 
.87 70 
95 
0 2 
ZO 1 
NO 1 
6 
6 
1 
0.8 
10.9 1 
13.3 
13.0 
12.6 
9.6 
8.4 
9.2 
9.2 
87 
81 
83 
ZZW 5 
ZW 5 
ZW 5 
10 
10 
0 
16.4 
7 
11.2 
23.6 
18.6 
20.3 
9.4 
9.6 ; 
137 
133 
97 63 
84 
NO 1 
ZO 2 
O 2 
10 
1 
10 
9.6 
13.1 
10.9 
14.8 
6.8 
8.3 
10.4 
8.9 
94 
94 ' 
92 
Z 4 
ZW 5 
ZW 4 
10 
10 
4 
0.1 
8 
15.8 
17.6 
15.5 
23.6 
11.1 
12.1 
12.7 
10.7 
90 85 
82 
Z 4 
ZZW 4 
ZW 5 
7 
10 
10 
24.0 
10.9 
12.9 
9.6 
13.9 
8.2 
6.5 
6.9 
7.0 
67 
63 
79 
W 3 
ZW 3 j 
W 5 
2 
5 1 
7 
2.1 
9 
11.6 
15.4 
12.2 
17.8 
9.9 
9.2 
9.4 
100 
91 72 
95 
ZW 3 
ZW 1 
Z 2 
8 
8 
4 
15.0 
7.5 
12.4 
10.6 
13.7 
3.8 
7,2 
7.2 
8.9 
93 
68 
94 
Z 3 
Z 4 
Z 4 
3 
3 
10 
10 
16.0 
17.4 
13.5 
16.8 
10.8 
10.8 1 
8.6 
8.1 
80 ; 58 
71 
ZW 6 
ZW 6 
ZW 6 
10 
4 
5 
8.5 
10.7 
! 13.3 
11.1 
13.1 1 
7.5: 
9.2 
10.3 
9.4 
97 
91 
95 
Z 2 
Z3 1 
Z 2 
10 
9 
0 
0.2 
11 
S 11.3 
120 ; 
14.4 | 
17.6 
10.3 
8.5 1 
9.4 
7.4 
85 91 
60 
ZZW 5 
ZZW 4 
ZW 6 
5 
9 
4 
11.8 
10.9 
12.0 
1 1.1 
13.2 
10.3 
9.5 
9.6 
9.4 
98 
93 
95 
Z 2 
Z 2 
Z 2 
10 
10 
10 
12 
! 12.8 
12.6 
10.8 1 
15.8 ! 
10.1 
8.6 j 
10. 1 
8.8 
78 93 
92 
ZW 4 
NW 2 
ZW 1 
5 
■ 9 
8 
15.3 
8.8 
13.0 
12.0 
12.6 
8.6 
8.2 
9.6 
9« 
98 
87 
95 
Z 2 
Z 2 
Z 1 
10 
10 
10 
0.9 
13 
i 13.9 
' 15.7 ! 
14.1 
13 8 
10.2 
9.3 i 
9.1 
9.1 
79 68 
76 
W 4 
! W 4 
W 5 
5 
2 
3 
25.8 
11.2 
14.1 
12.4 
12.9 
8.8 
,9.6 
10.6 
10.1 
97 
j 90 
95 
0 1 
ZO 2 
W 3 
10 
8 
10 
14 
14.8 
13.9 
13.9 
15.9 
11.8 
9.7 
10.9 
11.0 
77 1 93 ! 
94 
W 3 
! ZZW 4 
ZW 5 
8 
10 
10 
3.5 
10.2 
12.4 
8.1 
14.8 
8.8 
7.4 
7.9 
7.5 
79 
73 
93 
W 2 
W 1 
WZW 1 
9 
8 
8 
15 
! 13.2 
16.6 
14.8 
16.0 
11.2 
10.9 
13.5 
12.1 
67 96 
97 
0 2 
| ZW 4 
ZW 1 
10 
10 
1 
5.8 
7.5 
11.0 
9.9 
13.4 
4.6 
7.6 
9.5 
9.0 
99 
97 
99 
0 1 
NNO 1 
NW 1 
10 
10 
10 
16 
15.9 
21.0 
16.4 
18.8 
10.7 
11.2 
14.0 
12.9 
83 76 
93 
Z 3 
ZW 4 
ZW 1 
1 
3 
2 
5.3 
10.8 
10.0 
9.3 
11.8 
7.5 
9.3 
8.9 
8.1 
97 
98 
93 
NW 5 
NW 6 
WNW 6 
10 
10 
10 
18.1 
17 
; 16.3 
20.4 
16.7 
21.8 
12.2 
13.1 
12.2 
12.4 
95 68 
88 
Z 3 
I Z 5 
Z 2 
9 
9 
4 
6.5 
9.3 
1 1.1 
9.9 
10.9 
8.8 
8.5 
9.0 
8.4 
98 
91 
92 
W 2 
WZW 1 
W 1 
10 
9 
! 10 
29.7 
18 
16.0 
20 8 
17.4 
21.4 
14.7 
12.7 
14.9 
14.0 
93 82 j 
95 
Z 3 
ZW 3 
ZW 3 
10 
3 
9 
7.6 
12.2 
8.2 
1 1.3 
7.3 
7.8 
9.3 
8.0 
100 
89 
99 
0 1 
NO 1 
W 1 
10 
3 
l 
2.4 
19 
1 170 
14 7 
14.2 
20.8 ! 
15.7 
12.2 
9.2 
9.2 
85 ' 74 
77 
ZW 6 
W 5 
W 5 
9 
6 
10 
13.0 
9.2 
1 12.5 
11.9 
13.6 
7.6 
8.6 
10.0 
9.9 
99 
94 
-96 
NNO 1 
N 3 
N 3 
9 
10 
10 
20 
12.2 
13.8 
12.8 
18.7 ; 
11.9 
7.8 
66 
9.1 
74 57 
83 
W 4 
! W 5 
ZW 5 
5 
5 
9 
0.1 
11.3 
12.1 
11.2 
12.6 
9.2 
9.5 
9.9 
9.6 
96 
1 95 
97 
NO 4 
NO 4 
NO 4 
10 
10 
1 10 
1.1 
21 , 
11.6 
: 14.8 
14.2 
: 15.8 
; 10.2 
8.8 
8.9 
9.2 
87 j 71 
77 
ZW 5 
W 4 
ZW 5 
'9 
6 
7 
5.4 
9.5 
9.9 
; 9.6 
12.2 
9.5 
8.6 
9.0 
8.4 
98 
! 99 
95 
N 3 
NNO 2 
ZW 2 
10 
! 10 
! io 
2.4 
22 l 
14.5 
! 17.8 
12.2 
1 16.3 
11.5 
9.3 ; 
10.8 
! 9.8 
76 71 I 
94 
Z 6 
ZW 5 
ZW 2 
8 
9 
10 
1.8 
9.6 
11.0 
9.8 
10.0 
7.8 
8.6 
9.0 
'8.6 
96 
92 
95 
ZO 1 
ZO 1 
0 1 
6 
10 
10 
4.3 
23 i 
11.4 
! 15.3 
13.0 
17.8 
1 10.8 
9.2 
10.2 
9.1 
92 1 79 
82 
Z 4 
ZW 4 
j ZW 3 
3 
! 5 
6 
5.4 
7.8 
14.8 
9.8 
11.3 
6.8 
7.7 
10.5 
8.7 
98 
84 
96 
NO 2 
NO 2 
NO 2 
6 
1 1 
i 0 
3.7 
24 
13.1 
j 16.2 
13.1 
! 15.9 
9.4 
9.3 
10.8 
95 
85 ; 79 1 
86 
W 2 
W 3 
W 3 
5 
1 
8 
9.2 
11.3 
8.0 
15.4 
6.9 
8.4 
8.6 
7.8 
98 
87 
98 
NNO 2 
NNO 1 
NO 2 
10 
9 
1 0 
25 
12.0 
! 15.0 
1 1.5 
; 16.3 
: 10.7 
9.1 
8.5 
8.3 
88 ! 67 1 
82 
Z 4 
j W 4 
[ W 5 
10 
5 
7 
2.6 
8.4 
11.2 
10.« 
12.4 
4.6 
7.5 
8.3 
8.8 
92 
84 
i 93 
W 2 
W 2 
W 2 
5 
10 
10 
26 
11.8 
14.6 
13.6 
! 15 9 
1 1.4 
8.0 
10.1 
9.6 
78 j 82 1 
83 
WZW 3 
ZZW 5 
ZZW 6 
3 
10 
10 
8.6 
11.0 
I 9.5 
12.2 
8.4 
7.5 
6.6 
8.4 
91 
68 
95 
NW 2 
N 4 
N 2 
9 
7 
! 4 
1.9 
27 
12.7 
14.4 
13.0 
1 15.6 
11.8 
8.3 
7.1 
i 8.1 
76 ! 58 
73 
W 5 
1 W 4 
1 ZW 5 
2 
5 
6 
0.9 
8.0 
12.0 
8.4 
11.6 
6.8 
7.2 
8.1 
7.3 
90 
78 
89 
NNW 1 
WZW 3 
WZW 2 
5 
2 
9 
t.O 
28 
10.2 
; 12.3 
11.6 
148 
9.8 
8.6 
6.2 
I 6.6 
93 59 
64 
ZW 4 
W 5 
1 W 5 
10 
3 
6 
17.8 
9.6 
14.1 
9.7 
12.0 
7.3 
8.9 
10.4 
8.6 
100 
87 
96 
Z 2 
ZW 2 
w 1 
10 
10 
i 0 
29 
1 10.5 
12.4 
1 7.8 
! 13.2 
9.1 
6.8 
7.0 
7.7 
72 65 
98 
W 2 
! ZW 2 
ZW 1 
5 
10 
10 
6.9 
10.0 
13.4 
10.7 
14.4 
7.8 
9.2 
10.5 
9.2 
100 
93 
97 
WZW 1 
W 1 
w 1 
9 
1 9 
10 
30 
10.8 
; 9.2 
10.7 
i 13.0 
i 76 
9.0 
8.1 
5.7 
94 93 
60 
Z 4 
1 NNW 5 
N 5 
10 
! io 
1 
10.3 
5.8 
1 11.9 
6.7 
14.1 
5.2 
6.9 
6.4 
6.1 
100 
1 62 
83 
ZO 3 
O 3 
O 4 
4 
3 
1 
31 
2.7 
: 10.1 
j 9.8 
11« 
1.9 
5.1 
8.3 
8.8 
91 
89 
98 
ZO 3 
ZO 3 
1 ZO 4 
4 
1 10 
i 10 
Gem. 
j 13.1 
! 15.9 
13 6 
j 17.1 
| 10.9 
! 9.6 [ 
10.1 
! 9.7 
84 j 74 
83 
3.6 
I 3.8 
! 3.6 
7.1 
j 6.6 
6.2 
194.4 
9.3 
I 12.0 
I 10.2 
12.8 
7.4 
8.1 
I 8.9 
8.5 
93 
86 
92 
2.4 
'2 8 
2.7 
8.4 
8.1 
I 6.7 
105.4 
Som. 
! 
Som. 
OCTOBER 1918. 
1.7 M. p*. s. 
3.1 M. „ „ 
Matige wind 
Herleiding van de graden van windkracht naar de schaal Van Beaufort tot windsnelheden in meters per seconde: 
M. p. s. 5 > „ , , . . t 8.8 M. p. s. 7 { 0 . ... . . ) 12.9 M. p. s. 9 i c . 
M. , 6 * Krachtige wind $ , 07 M K g \ Stormachtige wind | , 54 M f I0 | St 
18 M. p. 
21 M. „ 
Orkaan meer dan 25 M. per sec 
