METEOROLOGICAL JOURNAL FOR APRIL, 1831 
9 o’clock 
A.M. 
3 o’clock, P.M. 
Dew 
External Thermometer. 
1831. 
April. 
Point at 
Barora. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
y A.M. 
in de- 
grees of 
Fahrenheit. 
Self-registering. 
inches. 
Read off 
at9A.M 
of the 
Wind at 
9 A.M. 
Remarks. 
Falir. 
9 A.M. 
3 P.M. 
Lowest. 
Highest 
? 1 
30.448 
45.9 
30.335 
48.3 
37 
44.0 
45.7 
37.5 
46.3 
N 
Cloudy— light wind. Rain at night. 
h 2 
30.071 
44.7 
30.025 
47.2 
37 
41.3 
44.7 
36.4 
45.7 
0.083 
SE 
Lightly cloudy. 
O 3 
29.963 
46.3 
29.853 
50.2 
43 
44.3 
51.3 
40.3 
51.3 
N 
Lightly cloudy — light wind. 
D 4 
29.702 
45.3 
29.590 
48.5 
40 
41.3 
48.4 
36.7 
48.5 
N 
Overcast — hazy. 
<? 5 
29.503 
45.3 
29.468 
49.2 
40 
42.7 
49.5 
35.3 
51.3 
ssw 
Cloudy — hazy. 
§ 6 
29.504 
49.7 
29.468 
52.1 
43 
47.3 
54.5 
39.7 
55.3 
sw 
Fine — lightly cloudy. 
V- 7 
29.375 
49.7 
29.261 
54.5 
48 
49.7 
59.0 
43.3 
59.7 
ESE 
Overcast — light wind. 
? 8 
29.284 
52.3 
29.306 
52.8 
49 
50.7 
48.6 
48.3 
52.7 
s 
Overcast — light rain. 
h 9 
29.503 
52.9 
29.534 
56.6 
51 
53.5 
56.6 
45.7 
58.3 
0.058 
SSE 
Lightly cloudy. Light rain at night. 
G 10 
29.610 
56.7 
29.698 
58.6 
52 
54.7 
57.4 
49.4 
58.6 
0.325 
S 
Clear— lightly cloudy— light wind. 
D 11 
29.981 
54.7 
29.976 
57.2 
50 
52.3 
58.7 
45.7 
58.7 
N 
Lightly overcast. 
• 3 12 
29.925 
54.6 
29.830 
58.3 
53 
57 
53.6 
60.8 
48.3 
61.8 
NE 
/ Fine — lightly cloudy. At 9£ P.M. 
1 Thunder and lightning, with rain. 
5 13 
29.S20 
57.7 
29.794 
61.6 
57.6 
63.8 
48.4 
64.8 
0.153 
N 
Lightly cloudy. 
V- 14 
29.969 
58.3 
29.948 
59.7 
43 
50.7 
56.8 
48.6 
56.8 
N 
Fine and clear— light clouds and wind. 
? 15 
30.015 
57.3 
29.985 
58.3 
46 
52.7 
55.8 
43.7 
57.1 
W 
Lightly cloudy. 
h 16 
30.064 
58.2 
30.006 
59.9 
50 
56.7 
57.4 
57.2 
59.3 
N 
Lightly cloudy. 
G 17 
29.989 
55.4 
29.994 
57.7 
49 
49.7 
52.3 
49.2 
55.3 
N 
Cloudy — clear. Light rain A.M. 
5 IS 
30.044 
52.7 
29.977 
55.9 
39 
46.6 
56.2 
38.3 
56.3 
N 
Fine and clear— light clouds. 
<J 19 
29.953 
49.7 
29.877 
54.7 
45 
45.7 
57.8 
39.9 
57.8 
N 
r Light wind.— A.M. overcast. P.M. 
\ Fine and clear. 
§ 20 
29.815 
53.3 
29.720 
55.9 
41 
48.6 
56.2 
40.4 
56.7 
N 
Fine — lightly cloudy. 
n 21 
29.533 
51.4 
29.453 
54.3 
47 
47.7 
53.4 
43.7 
53.8 
NNE 
Overcast. 
9 22 
29.429 
54.3 
29.429 
58.9 
53 
54.4 
60.2 
45.8 
61.7 
E 
Fine — lightly cloudy. 
h 23 
29.508 
53.8 
29.513 
60.3 
52 
52.3 
60.8 
47.8 
65.2 
NNW 
f A.M. Overcast. Noon, hail and rain. 
\ P.M. Fine. 
G 24 
29.825 
56.7 
29.873 
57.3 
50 
52.6 
54.7 
49.7 
54.7 
0.019 
N 
Overcast. 
D 25 
30.005 
56.7 
29.960 
60.3 
51 
54.7 
62.8 
50.3 
63.7 
NNW 
Cloudy — light wind. 
O $ 26 
29.817 
59.3 
29.753 
62.3 
49 
57.6 
61.8 
48.7 
63.3 
E 
Lightly cloudy. 
5 27 
29.646 
56.6 
29.546 
61.7 
49 
52.5 
58.7 
49.7 
60.7 
SE 
( Lowering — light wind and fog. Rain 
1 at 10 A.M. 
H. 28 
29.347 
56.3 
29.316 
58.4 
51 
51.7 
54.0 
50.3 
55 6 
0.036 
S 
( Overcast and foggy— deposition of 
t moisture. 
$ 29 
29.203 
56.3 
29.216 
61.3 
50 
50.5 
61.0 
45.5 
61.3 
0.367 
E 
f A.M. Foggy. P.M. Fine — cloudy — 
l brisk wind — showery- 
h 30 
29.243 
60.4 
29.195 
62.4 
51 
58.0 
61.0 
49.7 
63.7 
0.033 
S 
Fair — cloudy. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.736 
53.4 
29.697 
56.5 
47.2 
50.5 
56.0 
45.1 
57.2 
1.074 
{ 9 1 
29 i 
9 A.M. 
676 
3 P.M. I 
29.o;ii s 
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. 
