METEOROLOGICAL JOURNAL FOR JULY, 1829 
9 o’clock, A.M. 
3 o’clock 
P.M. 
External Thermometer. 
1829. 
July. 
Point at 
Rain, in 
Direction 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
9 A.M. 
in de- 
grees of 
Fahrenheit. 
Self-registering. 
inches. 
Read off 
at9A.M. 
of the 
Wind at 
9 A.M. 
Remarks. 
Fahr. 
9 A.M. 
3 P.M. 
Lowest. 
Highest. 
©5 i 
29.647 
65.3 
29.513 
66.9 
55 
59.7 
61.8 
57.6 
65.5 
0.292 
SSE 
Overcast — rain. 
V- 2 
29.587 
73.5 
29.631 
68.7 
51 
64.6 
66.7 
55.7 
68.7 
0.097 
SSW 
Fine and clear— brisk wind. 
? 3 
29.609 
67.8 
29.477 
67.7 
56 
64.5 
62.8 
57.0 
67.8 
SSE 
f Cloudy — showery. Rain, with high 
\ wind, at night. 
h 4 
29.631 
73.5 
29.573 
67.8 
50 
63.5 
58.7 
52.8 
68.6 
0.036 
wsw 
A.M. Fine and clear. P.M. Overcast. 
O 5 
29.585 
63.1 
29.660 
67.1 
51 
58.4 
60.7 
50.7 
66.7 
0.089 
w 
Cloudy. Evening fine and clear. 
D 6 
29.876 
69.7 
29.893 
69.3 
55 
66.0 
69.7 
52.8 
71.7 
0.125 
w 
Fine and clear— light wind. 
2 7 
29.878 
65.7 
29.741 
65.9 
60 
60.7 
60.7 
55.8 
67.7 
0.042 
wsw 
Overcast — brisk wind. Rain. 
06 
XH 
29.834 
70.3 
29.786 
70.7 
55 
67.3 
69.3 
55.8 
71.7 
0.044 
NW 
Fine — light clouds. 
V- 9 
29.741 
67.7 
29.809 
68.3 
51 
63.2 
65.7 
56.7 
67.7 
NW 
Fine — cloudy. 
? 10 
29.913 
70.6 
29.817 
70.2 
50 
66.7 
65.0 
53.4 
68.8 
sw 
f A.M. Fine. P.M. Lowering. Even- 
l ing, rain. 
h ii 
29.556 
66.4 
29.485 
67.1 
61 
62.3 
61.6 
58.9 
65.8 
0.022 
SSE 
Lowering. P.M. Heavy rain. 
©12 
29.422 
67.7 
29.497 
69.0 
62 
63.7 
68.0 
56.7 
69.2 
0.514 
WSW 
Fine and clear — cloudy. 
D 13 
29.658 
66.3 
29.733 
70.3 
60 
63.7 
68.5 
56.4 
69.5 
0.100 
SSW 
Lowering. 
2 14 
29.889 
69.2 
29.861 
70.3 
66 
66.4 
68.7 
62.8 
73.7 
SSW 
Cloudy. Heavy rain A.M. 
£ 15 
30.014 
74.6 
29.982 
73.0 
60 
68.7 
73.5 
58.3 
74.7 
0.125 
w 
Fine and clear — light clouds. 
o n 16 
29.947 
74.3 
29.958 
72.9 
56 
66.9 
69.5 
57.8 
73.2 
w 
Fine. Heavy showers P.M. 
? 17 
29.910 
68.3 
29.683 
68.0 
60 
64.1 
60.3 
56.4 
64.8 
0.125 
SSE 
Lowering — light wind. Rain P.M. 
h 18 
29.562 
68.7 
29.589 
70.3 
64 
64,3 
66.7 
59.7 
69.8 
0.239 
SE 
f A.M. Lowering— heavy showers. P.M. 
1 Fine. 
©19 
29.785 
70.2 
29.867 
71.7 
60 
65.9 
66.4 
59.8 
70.2 
0.322 
NW 
Fine — lightly cloudy. 
D 20 
30.097 
73.0 
30.088 
71.3 
54 
66.3 
70.6 
51.7 
71.1 
0.047 
NW 
Fine and clear. 
2 21 
30.254 
72.3 
30.238 
71.6 
57 
66.9 
73.8 
54.0 
74.7 
WSW 
Fine — light clouds. 
? 22 
30.260 
74.3 
30.205 
73.7 
62 
69.8 
76.2 
59.3 
78.3 
w 
Fine and clear — cloudy. 
71 23 
30.187 
68.7 
30.153 
72.4 
62 
63.7 
71.4 
60.7 
73.3 
w 
A.M. Overcast. P.M. Fine. 
? 24 
30.030 
75.2 
29.954 
74.3 
66 
68.0 
71.7 
59.3 
72.0 
E 
Fine — cloudy. 
h 25 
29.873 
70.6 
29.897 
74.5 
65 
65.8 
74.6 
64.2 
75.4 
0.183 
WSW 
f A.M. Thunder and lightning, from 
t lh to 2h, with hail and rain. 
©26 
30.028 
65.3 
30.060 
65.6 
57 
57.8 
58.9 
56.0 
60.6 
N 
Overcast. Shower at noon. 
D 27 
30.101 
65.1 
30.102 
66.9 
56 
59.3 
64.0 
48.7 
66.8 
o.oos 
NNE 
Fine — light clouds. 
2 28 
30.098 
70.7 
29.999 
67.7 
51 
66.3 
67.9 
51.7 
70.3 
WSW 
Fine and clear. 
5 29 
29.642 
64.2 
29.664 
68.0 
59 
60.1 
69.2 
58.4 
69-7 
0.153 
SE 
A.M. Showers, early. Fine— cloudy. 
© 7k 30 
29.748 
69.6 
29.755 
69.3 
53 
64.3 
67.7 
51.5 
69.7 
NNE 
r Fine — light clouds. Thunder and 
t lightning at 4 P.M. with heavy rain. 
? 31 
29.977 
60.7 
30.070 
66.7 
58 
58.5 
64.0 
52.3 
65.3 
0.347 
NNW 
A .M. Cloudy. P.M. Clear— brisk wind. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.850 
69.1 
29.830 
69.6 
57.5 
64.1 
66.9 
56.2 
69.8 
2.910 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
, 9 A.M. 
29.760 
3 P.M. 
29.737 
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. 
