METEOROLOGICAL JOURNAL FOR SEPTEMBER, 1831 
9 o’clock 
, A.M. 
3 o’clock, P.M. 
Dew 
External Thermometer. 
1831. 
Septemb. 
Point at 
Rain, in 
inches. 
Read off 
Direction 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
9 A.M. 
in de- 
grees of 
Fahrenheit. 
Self-registering. 
of the 
Wind at 
9 A.M. 
Remarks. 
at9A.M 
Fahr. 
9 A.M. 
3 P.M. 
Lowest. 
Highest 
y- i 
29.966 
66.0 
29.888 
63.7 
58 
58.8 
53.5 
55.6 
59.4 
0.041 
sw 
Rain. 
? 2 
29.843 
62.0 
29.883 
64.6 
55 
55.0 
58.7 
48.2 
60.4 
0.922 
SWvar. 
Fine — light clouds and wind. 
h 3 
29.918 
60.6 
29.883 
63.0 
52 
55.4 
62.5 
47.0 
63.2 
NNE 
Fine and clear. 
O 4 
29.847 
61.6 
29.839 
64.3 
55 
58.3 
65.0 
47.2 
68.2 
ssw 
A.M. Fine. P.M. Light rain. 
J> 5 
29.911 
64.0 
29.924 
68.9 
57 
64.2 
70.2 
58.5 
72.2 
0.030 
s 
f A.M. Light rain. P.M. Fine — light 
• 3 6 
29.926 
68.0 
60 
1 clouds. 
66.0 
29.871 
62.8 
65.9 
51.6 
67.4 
0.038 
sw 
r A.M. Overcast. P.M. Fine — light 
55 
t clouds. 
5 1 
29.879 
65.0 
29.788 
66.7 
60.3 
62.2 
51.8 
64.8 
0.061 
s 
A.M. Nearly cloudless. P.M. Light rain. 
V 8 
29.713 
62.6 
29.649 
65.8 
52 
58.7 
62.0 
48.2 
65.9 
0.230 
sw 
A.M. Fine. P.M. Light rain. 
? 9 
29.584 
60.3 
29.643 
62.8 
54 
55.2 
55.5 
50.0 
58.2 
0.058 
sw 
Overcast — light rain. 
k 10 
29.845 
60.3 
29.881 
63.6 
55 
57.9 
60.3 
53.0 
63.6 
0.144 
NW var. 
A.M. Fair. P.M. Rain. 
GH 
29.984 
58.8 
30.051 
62.5 
52 
55.6 
61.2 
49.4 
61.7 
0.108 
S 
Cloudy— rain. 
D 12 
30.202 
60.8 
30.210 
63.4 
55 
58.8 
63.7 
55.9 
64.6 
S 
A.M. Fair. P.M. Cloudy. 
3 13 
30.214 
61.0 
30.176 
64.5 
54 
58.4 
64.8 
54.6 
66.0 
ENE 
Fine — lightly overcast. 
■KX 
30.158 
61.7 
30.132 
64.2 
53 
59.5 
63.6 
55.3 
64.5 
E 
A.M. Fine. P.M. Cloudy. 
y 15 
30.172 
60.2 
30.138 
64.0 
52 
55.5 
63.7 
51.0 
66.2 
E 
Fine and clear. 
? 16 
30.249 
60.4 
30.273 
64.2 
52 
55.2 
61.4 
54.0 
62.6 
NE 
Overcast. P.M. Light rain. 
h 17 
30.239 
59.9 
30.208 
63.6 
52 
57.5 
60.3 
53.2 
64.3 
wsw 
A.M. Fine. P.M. Overcast. 
©18 
30.120 
61.0 
30.049 
64.6 
53 
58.4 
64.8 
54.0 
66.8 
ssw 
A.M. Fair. P.M. Overcast. 
5 19 
29.917 
61.4 
29.860 
65.4 
54 
58.6 
64.8 
52.2 
66.8 
ESE 
A.M. Fine. P.M. Cloudy. Atnightrain- 
3 20 
29.859 
59.4 
29.851 
63.4 
51 
54.2 
62.0 
46.9 
63.5 
0.041 
SW 
Fine and clear. 
0 5 21 
29.814 
61.2 
29.825 
64.5 
56 
58.8 
64.0 
54.0 
65.2 
0.144 
sw 
A.M. Light rain. P.M. Fine and clear. 
y 22 
29.934 
60.3 
29.949 
63.4 
50 
54.8 
62.6 
51.0 
63.6 
wsw 
Fine — light clouds. 
? 23 
30.130 
59.0 
30.118 
63.2 
52 
54.2 
64.8 
46.5 
65.2 
w 
Fine — light clouds. 
h 24 
30.241 
62.4 
30.173 
65.3 
57 
60.6 
66.6 
54.5 
68.2 
s 
Fine and clear — light clouds. 
©25 
30.051 
63.2 
29.976 
65.4 
57 
61.2 
66.7 
54.7 
67.6 
S var. 
Fine — nearly cloudless P.M. 
D 26 
30.039 
63.0 
29.986 
64.5 
56 
58.2 
62.2 
58.0 
63.8 
0.033 
S 
Overcast — light rain. 
3 27 
29.917 
62.2 
29.836 
65.5 
54 
57.8 
66.4 
55.3 
66.2 
E 
r A.M. Light rain. P.M. Nearly cloud- 
5 28 
29.775 
63.8 
29.724 
66.6 
57 
61.7 
67.5 
57.4 
68.0 
0.325 
E 
( Fine— light clouds. At night, thun- 
t der-storm. 
y 29 
29.629 
65.0 
29.609 
68.3 
60 
61.2 
67.8 
59.6 
69.2 
0.631 
E 
Fair— lightly overcast. 
? 30 
r A.M. Fine. P.M. Cloudy. At night. 
29.540 
65.0 
29.433 
68.0 
61 
62.6 
68.3 
58.5 
69.5 
SE 
t thunder-storm. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.954 
61.9 
29.928 
64.9 
54.7 
58.3 
63.4 
52.9 
65.2 
2.806 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
|9 A, 
' \ 29.8( 
M. 
863 
3 P.M. I 
29.828 5 
OBSERVANDA. 
Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge =83 feet 2§ in. 
above the mean level of the Sea (presumed about) =95 feet. 
The External Thermometei is 2 feet higher than the Barometer Cistern. 
Height of the Receiver of the Rain Gauge above the Court of Somerset House =79 feet 0 in. 
The hours of observation are of Mean Tinae, the day beginning at Midnight. 
The Thermometers are graduated by Fahrenheit’s Scale. 
The Barometer is divided into inches and decimals. 
