METEOROLOGICAL JOURNAL FOR AUGUST, 1831 
9 o’clock, 
A.M. 
3 o’clock, P.M. 
Dew 
External Thermometer. 
1831. 
Point at 
Rain, in 
Direction 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
9 A.M. 
in de- 
Fahrenheit. 
Self-registering. 
inches. 
Read off 
of the 
Wind at 
9 A.M. 
Remarks. 
August. 
Therm. 
grees of 
at 9 A.M. 
Fahr. 
9 A.M. 
3 P.M. 
Lowest. 
Highest. 
D 1 
30.068 
76.3 
30.021 
77.4 
60 
71.4 
73.8 
58.6 
75.7 
N 
| A.M. Cloudless. P.M. Fine. At night, 
3 2 
29.876 
71.3 
29.878 
75.3 
66 
66.3 
70.0 
63.6 
73.3 
N 
f Showery. Thunder at noon and in the 
\ evening. 
5 3 
29.903 
71.3 
29.893 
74.2 
64 
66.7 
70.6 
63.7 
72.3 
0.367 
ENE 
/ Cloudy. Thunder at noon. Very 
t heavy showers, P.M. 
n 4 
29.811 
72.3 
29.726 
74.4 
65 
67.3 
75.3 
61.2 
76.7 
0.361 
E 
A.M. Overcast. P.M. Fine—cloudy. 
? 5 
29.682 
71.7 
29.689 
75.4 
69 
68.7 
74.4 
65.3 
75.3 
E 
f Fair—cloudy. From 7 to 8 P.M. a 
\ violent thunder-storm. 
h 6 
29.760 
73.6 
29.740 
75.7 
64 
69.4 
74.3 
60.4 
76.3 
0.375 
SSW 
Fine and clear—light clouds and wind. 
@0 ^ 
74.7 
75.0 
64 
70.4 
62.3 
75.7 
ESE 
f A .M. Fair—cloudy. P.M. Lowering 
29.687 
29.684 
70.7 
1 —heavy broken clouds—light rain. 
D 8 
29.859 
70.3 
29.869 
74.6 
64 
64.0 
76.8 
62.0 
76.8 
NNW 
Fine—lightly cloudy. 
3 9 
29.966 
71.4 
29.958 
75.5 
66 
69.2 
78.2 
64.3 
79.7 
NW 
Fine—cloudy. Rain at night. 
5 io 
30.057 
71.3 
30.099 
73.5 
58 
65.6 
72.4 
61.3 
74.3 
0.203 
N 
F ine—light clouds. 
n ii 
30.192 
72.7 
30.152 
73.8 
59 
68.4 
73.6 
59.7 
74.6 
N 
f A.M. Cloudless. P.M. Fine—light 
l clouds. 
? 12 
30.163 
70.3 
30.123 
73.4 
63 
65.3 
72.8 
60.3 
75.8 
E 
f A.M. Cloudless. P.M. Fine—light 
t clouds and wind. 
h 13 
30.080 
72.6 
30.014 
73.7 
62 
68.6 
72.5 
60.7 
75.6 
NNW 
/A.M. Cloudless. P.M. Lightly over- 
1 cast—shower at 2. 
014 
30.040 
71.7 
30.005 
73.4 
60 
65.3 
71.7 
56.7 
72.6 
0.042 
N 
Fine and clear—light clouds. 
D 15 
30.107 
70.7 
30.108 
72.7 
61 
65.5 
71.6 
55.7 
73.2 
N 
Fine and cloudless. 
3 16 
30.140 
68.3 
30.104 
70.6 
62 
62.7 
69.4 
57.7 
70.2 
E 
f A.M. Strong fog. P.M. Overcast— 
l thunder. 
5 17 
30.080 
69.7 
29.998 
72.5 
64 
65.7 
72.5 
60.8 
74.3 
0.017 
W 
r Fine—cloudy. Violent thunder-storm, 
t with rain at 5 P.M. 
21 18 
29.970 
68.3 
29.944 
69.4 
49 
60.3 
67.8 
66.3 
68.3 
0.264 
N 
Clear and cloudless. 
? 19 
29.678 
66.3 
29.719 
69.6 
64 
66.9 
66.4 
56.4 
69.7 
0.014 
wsw 
Fine and clear. 
h 20 
29-666 
66.6 
29-812 
68.6 
59 
61.3 
67.5 
56.7 
67.7 
0.011 
N 
r Fine—brisk unsteady wind and light 
t clouds. Rain at night. 
©21 
30.096 
65.7 
30.164 
70.3 
61 
62.6 
67.5 
59.4 
68.4 
0.014 
N 
Fine—cloudy—brisk unsteady wind. 
2> 22 
30.310 
64.7 
30.277 
69.2 
59 
60.7 
68.0 
55.3 
68.7 
NNW 
Fair—cloudy. 
O 3 23 
30.202 
67.7 
30.180 
71.6 
58 
66.4 
73.8 
60.8 
75.6 
N 
Fair—light clouds. 
$ 24 
29.977 
69.7 
29.869 
72.2 
62 
67.6 
70.4 
58.7 
72.6 
ssw 
Lightly overcast. 
21 25 
29.730 
67.9 
29.794 
70.5 
52 
62.7 
68.8 
59.7 
69.5 
0.033 
w 
Fine—light clouds. Clear A.M. 
? 26 
29.983 
70.3 
29.946 
71.6 
54 
66.7 
69.8 
54.4 
71.5 
ssw 
Lightly overcast. 
h 27 
29.975 
69.7 
29.961 
72.4 
65 
68.7 
72.4 
61.7 
75.3 
wsw 
Lightly overcast. 
©28 
30.129 
70.3 
30.160 
71.7 
61 
63.6 
69.5 
55.7 
70.5 
wsw 
Fine—nearly cloudless. 
D 29 
30.239 
69.4 
30.202 
71.0 
59 
63.7 
72.2 
55.3 
72.7 
wsw 
Fine. A.M. Cloudless. 
3 30 
30.147 
69.3 
30.101 
72.4 
63 
66.5 
73.0 
59.6 
74.3 
ssw 
Lowering. 
5 31 
29.952 
69.7 
29.948 
72.2 
66 
68.4 
68.0 
63.7 
70.5 
wsw 
Fair—cloudy. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.985 
70.2 
29.972 
72.7 
61.4 
66.0 
71.5 
59.9 
73.2 
1.701 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
9 A.M. 
29.869 
3 P.M. 
29.848 
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. 
