METEOROLOGICAL JOURNAL FOR SEPTEMBER, 1830 
1830. 
Septem. 
9 o’clock, A.M. 
3 o’clock, P.M. 
Dew 
Point at 
9 A.M. 
in de- 
grees of 
Fahr. 
External Thermometer. 
Rain, ii 
Direction 
ofthe 
Wind at 
9 A.M. 
Remarks. 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
Fahrenheit. 
Self-registering. 
inches. 
Read of 
at9A.M 
9 A.M. 
3 P.M. 
Lowest. 
Highest 
5 1 
30.342 
61.8 
30.291 
65.8 
49 
58.5 
67.6 
50.0 
68.8 
0.250 
sw 
Fine and clear. 
0 V - 2 
30.200 
62.6 
30.085 
67.8 
52 
57.8 
67.0 
50.6 
69.8 
wsw 
Fine — lightly overcast. 
9 3 
29.835 
63.6 
29.812 
65.8 
51 
60.5 
63.2 
53.4 
65.4 
S var. 
Fine — lightly overcast. 
h 4 
29.954 
62.2 
29.966 
65.2 
53 
58.0 
62.8 
53.2 
65.8 
N 
Fine and clear — light clouds. 
O 5 
29.704 
61.2 
29.697 
65.2 
55 
57.4 
64-6 
54.2 
65.2 
WNW 
Overcast— light rain A.M. 
5 6 
29.562 
61.4 
29.495 
64.9 
53 
58.2 
62.4 
52.0 
63.6 
SW 
/ Overcast. Thunder and lightning. 
l with heavy rain at 4§ P.M. 
$ 7 
29.748 
61.4 
29.779 
63.6 
53 
57.6 
59.8 
54.0 
62.5 
0.250 
W var. 
Fair — lightly overcast. 
9 8 
30.004 
61.0 
30.079 
64.8 
53 
57.8 
63.0 
53.6 
64.2 
SE var. 
Fair — lightly overcast. 
V 9 
29.865 
60.5 
29.792 
62.8 
50 
57.6 
59.0 
49.2 
61.3 
S 
Overcast. At night, rain. 
? 10 
29.657 
59.7 
29.701 
63.2 
56 
56.4 
61.8 
54.0 
63.0 
0.375 
W 
Overcast. A.M. early, rain. 
h 11 
29.777 
57.5 
29.756 
61.8 
47 
53.6 
60.2 
45.8 
61.4 
SW 
Fine — light clouds. 
012 
29.388 
59.0 
29.326 
61.3 
50 
56.2 
58.4 
51.0 
60.6 
S 
Fine — light clouds — showers. 
D 13 
29.489 
58.2 
29.548 
61.4 
49 
54.0 
60.0 
47.5 
62.0 
0.250 
sw 
Fine — light clouds. 
<? 14 
29.445 
59.6 
29.460 
62.5 
51 
57.5 
61.3 
50.0 
65.2 
s 
Fine— light clouds. A.M. early, rain. 
§ 15 
29.663 
59.2 
29.657 
62.2 
49 
57.5 
62.0 
49.2 
63.4 
SE 
Fine— lightly overcast. At night, rain. 
V . 16 
29.606 
61.4 
29.710 
63.5 
54 
59.0 
63.1 
56.5 
65.6 
WSW 
Fine and clear. 
© ? 17 
29.686 
58.5 
29.641 
61.6 
53 
54.8 
59.0 
51.5 
59.8 
E 
Overcast. Light rain A.M. 
\ 18 
29.594 
59.6 
29.681 
62.0 
52 
55.8 
59.4 
52.0 
63.5 
0.250 
SW 
Lightly overcast. 
019 
29.962 
58.4 
29.866 
62.3 
49 
55.2 
60.2 
47.2 
63.2 
s 
A.M. Fine and dear. P.M. Rain. 
D 20 
29.641 
60.0 
29.609 
62.8 
50 
56.5 
61.6 
52.0 
63.8 
SW var. 
Fine and clear. 
S 21 
29.200 
57.8 
29.251 
61.3 
52 
53.0 
56.0 
51.0 
58.2 
0.250 
ESE 
A.M. Rain. P.M. Fine. 
§ 22 
29.574 
55.2 
29.677 
59.2 
46 
50.6 
59.5 
43.0 
60.2 
0.250 
WSW 
Fine and clear. 
U 23 
29.325 
57.4 
29.410 
60.5 
52 
58.4 
60.5 
50.0 
62.5 
S var. 
Fine — showery. 
? 24 
29.675 
56.3 
29.594 
58.8 
46 
53.8 
52.6 
47.0 
57.8 
S var. 
r Nearly cloudless. P.M. Hail with high 
\ wind. 
k 25 
29.736 
56.0 
29.800 
58.8 
45 
53.6 
58.5 
46.8 
59.8 
0.250 
WSW 
Fine and clear — light wind. 
0 26 
30.212 
54.0 
30.282 
57.6 
45 
50.5 
58.5 
43.8 
60.8 
SW 
Fine — light clouds. 
D 27 
30.420 
54.8 
30.380 
58.4 
47 
53.4 
59.6 
46.5 
61.2 
SE 
Fine — lightly overcast. 
<? 28 
30.279 
57.6 
30.154 
59.8 
49 
57.6 
61.8 
53.2 
62.8 
SW 
Fair — lightly overcast. 
$ 29 
30.037 
56.2 
30.025 
59.0 
51 
53.3 
56.8 
50.0 
58.2 
0.250 
S 
Fair — lightly overcast. 
n 30 
30.109 
53.8 
30.016 
57.6 
47 
48-8 
55.8 
44.0 
56.2 
SSW 
Fair — lightly overcast. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.789 
58.9 
29.785 
62.0 
50 
55.8 
60.5 
50.1 
62.0 
2.375 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
9 A.M. 
29.724 
3 P. M. I 
29.712 l 
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 Thermometer 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 Time, the day beginning at Midnight. 
The Thermometers are graduated by Fahrenheit’s Scale. 
The Barometer is divided into inches and decimals. 
