METEOROLOGICAL JOURNAL FOR SEPTEMBER, 1829 
9 o’clock 
, A.M. 
3 o’clock, P.M. 
Dew 
External Thermometer. 
1829. 
Septemb. 
Point at 
Rain, ir 
Direction 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
9 A.M. 
in de- 
grees of 
Fahr. 
Fahrenheit. 
Self-registering. 
inches. 
Read ofl 
at9A.M 
of the 
Wind at 
9 A.M. 
Remarks. 
9 A.M. 
3 P.M. 
Lowest. 
Highest 
S 1 
29.998 
58.3 
29.965 
64.0 
57 
57.4 
63.5 
54.3 
64.2 
0.044 
NNE 
| Cloudy— light wind. Evening, light 
5 2 
29.955 
60.6 
29.980 
65.6 
59 
59.7 
63.8 
56.4 
66.5 
0.008 
NNW 
Cloudy and foggy. Evening clear. 
¥ 3 
30.176 
57.4 
30.510 
61.3 
49 
55.3 
62.4 
52.2 
63.2 
NW 
Fine and clear — lightly cloudy. 
? 4 
30.009 
58.0 
29.945 
61.7 
50 
56.6 
62.0 
53.6 
63.3 
W 
Fine and clear — cloudy. 
h 5 
29.712 
58.2 
29.581 
62.0 
56 
58.3 
60.3 
51.9 
63.5 
SSE 
f Overcast— light wind. At night, light 
\ rain. 
O 6 
29.531 
61.7 
29.499 
63.8 
59 
60.8 
63.3 
54.8 
65.2 
0.005 
WSW 
Fine — lightly overcast. 
D 7 
29.663 
59.8 
29.658 
64.3 
54 
58.5 
63.7 
52.3 
64.3 
? 
S 
f Fine and clear — light clouds. Showery 
l P.M. 
GO 
29.496 
61.3 
29.563 
63.4 
59 
61.3 
60.7 
54.4 
65.2 
? 
S var. 
f Heavy rain, early A.M. Fine and 
\ clear — brisk wind. 
5 9 
29.671 
59.7 
29.682 
64.2 
55 
58.7 
64.2 
52.7 
65.5 
0.389? 
WSW 
Fine and clear — light wind. 
if. 10 
29.387 
62.7 
29.357 
66.5 
61 
62.0 
66.7 
58.8 
66.7 
0.389? 
SE 
f A.M. Cloudy. P.M. Fine and clear. 
1 Light brisk wind. 
? 11 
29.606 
60.0 
29.689 
64.6 
55 
59.4 
62.8 
55.4 
65.2 
9 
WSW 
Fine and clear. Evening rainy. 
h 12 
29.663 
59.2 
29.630 
63.3 
54 
57.3 
60.3 
50.3 
63.7 
0.203 
w 
Fineand clear — cloudy. Light showers. 
0 013 
29.565 
56.0 
29.442 
62.4 
53 
55.7 
61.4 
47.5 
62.7 
0.011 
ssw 
Fine and clear. Heavy rain at night. 
D 14 
29.208 
57.3 
29.300 
61.6 
48 
54.4 
56.6 
52.4 
61.6 
0.556 
w 
A.M. Fine. P.M. Showery. 
<? 15 
29.668 
53.7 
29.765 
60.4 
45 
53.0 
59.1 
44.9 
61.3 
0.050 
w 
/Very clear. P.M. Showery: at 4h. 
1 thunder and lightning. 
5 16 
29.561 
54.7 
29.535 
57.2 
52 
52.5 
54.7 
49.5 
54.7 
0.408 
N 
Foggy. Light brisk wind. 
if. 17 
29.868 
55.3 
29.807 
59.2 
50 
50.6 
57.9 
44.8 
58.3 
0.033 
WNW 
Overcast. At night, rain. 
? 18 
29.175 
56.7 
29.161 
61.2 
56 
56.7 
59.7 
45.0 
63.8 
0.389 
ESE 
Fine — lightly cloudy. 
h 19 
29.472 
56.7 
29.631 
56.8 
54 
54.5 
55.2 
51.7 
56.7 
NW 
Overcast. 
©20 
29.929 
55.9 
29.898 
58.7 
51 
51.7 
58.4 
45.7 
58.8 
0.089 
NW 
Fine — light clouds. 
D 21 
29.761 
56.7 
29.798 
61.3 
54 
56.4 
61.0 
51.4 
62.3 
0.011 
W 
Fine and clear — light clouds. 
$ 22 
29.880 
55.7 
29.812 
60.5 
53 
55.7 
60.0 
48.4 
61.4 
0.056 
WSW 
Fine — lightly cloudy. 
$ 23 
29.834 
56.7 
29.844 
60.6 
53 
53.9 
59.4 
51.2 
62.7 
0.019 
WSW 
Fine — hazy. 
If. 24 
29.957 
55.7 
29.913 
59.6 
51 
53.7 
58.2 
51.6 
59.7 
WSW 
A.M. Strong haze. P.M. Fine. 
? 25 
30.125 
53.7 
30.146 
58.7 
53 
52.7 
58.4 
48.3 
58.8 
N 
Fine. Strong fog at night. 
1 1 26 
30.232 
51.6 
30.168 
59.4 
49 
51.2 
59.3 
46.2 
62.0 
N 
Strong haze. 
©27 
29.892 
60.7 
29.797 
61.3 
58 
61.8 
60.3 
50.4 
62.0 
WSW 
f Fineand clear — light wind. Showers 
l at noon. 
© 5 28 
29.876 
52.9 
29.873 
58.0 
46 
51.4 
54.2 
46.3 
56.7 
0.044 
NW 
Fine — light clouds. 
<? 29 
29.983 
51.0 
29.986 
54.6 
42 
48.6 
54.0 
44.3 
54.3 
N 
Fine — light clouds. 
$ 30 
30.213 
50.2 
30.212 
54.8 
43 
44.3 
54.2 
42.4 
54.3 
N 
A.M. Strong fog. P.M. Fine & clear. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.769 
56.9 
29.772 
61.0 
52.6 
55.5 
59.8 
50.3 
61.6 
2.704? 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
'9 A.M. 
29.709 
3 P.M. I 
29.70 2 ) 
OBSERVANDA. 
Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge =83 feet 2J 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. 
