METEOROLOGICAL JOURNAL FOR JANUARY, 1831 
9 o’clock 
A.M. 
3 o’clock, P.M. 
Dew 
External Thermometer. 
183L 
Point at 
Rain, in 
Direction 
9 A.M. 
inches. 
of the 
Remarks. 
Jan. 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
in de- 
grees of 
ianrenheit. 
sell-registering. 
Read ofl 
Wind at 
Fahr. 
9 A.M. 
3 P.M. 
Lowest. 
Highest 
h 1 
29.766 
38.7 
29.782 
41.2 
34 
34.6 
42.3 
31.5 
42.3 
wsw 
r A.M. Hoar frost— hazy. P.M. Fine 
i and clear. 
O 2 
29.856 
40.3 
29.843 
41.6 
36 
38.2 
39.3 
33.1 
39.7 
SSE 
Fair— lightly cloudy. 
5 3 
29.904 
39.7 
29.896 
40.9 
38 
38.4 
39.8 
32.8 
39.8 
S 
Overcast. 
<? 4 
29.908 
40.3 
29.867 
40.2 
37 
37.3 
37.5 
36.4 
37.5 
ESE 
Foggy — light wind. 
5 5 
29.830 
40.3 
29.875 
40.8 
37 
37.7 
39.2 
36.3 
39.2 
E 
Foggy. 
n e 
30.197 
38.8 
30.301 
40.0 
35 
35.3 
38.5 
33.3 
38.5 
N 
Fine and cloudless— hazy. 
? 7 
30.592 
36.5 
30.580 
37.0 
29 
31.0 
32.4 
29.3 
33.7 
N 
Foggy— light wind. 
h 8 
30.584 
33.6 
30.499 
35.2 
27 
27.5 
33.8 
24.3 
33.8 
N 
/P.M. Hoarfrost — hazy. P.M. Fine 
l —light clouds. 
O 9 
30.254 
34.3 
30.114 
36.3 
31 
31.7 
38.9 
26.0 
41.2 
WNW 
Foggy. 
D 10 
29.897 
38.9 
29.892 
39.8 
40 
40.9 
40.8 
30.4 
40.8 
NNE 
Overcast — light wind and fog. 
<? 11 
30.082 
36.7 
30.051 
37.8 
33 
33.7 
35.2 
32.6 
36.3 
ENE 
Lightly cloudy and foggy. 
$ 12 
30.080 
38.2 
30.041 
39.0 
37 
37.7 
38.7 
32.7 
38.7 
NNE 
Foggy'— light wind. 
V- 13 
30.120 
38.3 
30.128 
39.3 
33 
34.7 
38.2 
33.2 
38.3 
NE 
Foggy — light wind. 
• ? 14 
30.172 
41.3 
30.130 
41.9 
37 
39.4 
38.3 
33.7 
38.5 
NE 
Foggy— light wind. 
k 15 
29.989 
39.3 
29.893 
38.2 
32 
32.6 
32.4 
31.4 
32.6 
E 
Foggy— light wind. 
©16 
29.817 
37.7 
29.771 
37.7 
32 
32.5 
33.7 
31.3 
39.6 
E 
Overcast — light fog. 
3) 17 
29.605 
39.4 
29.565 
40.6 
40 
40.7 
43.2 
31.6 
43.2 
E 
Foggy— light rain and wind. 
$ 18 
29.552 
40.3 
29.554 
41.9 
38 
38.7 
43.2 
36.6 
44.3 
E 
Foggy— light rain. 
5 19 
29.652 
43.6 
29.625 
45.0 
45 
45.3 
46.6 
37.7 
46.6 
S 
Foggy— light wind. 
% 20 
29.411 
44.6 
29.273 
45.5 
42 
42.3 
43.6 
39.7 
43.6 
ESE 
Foggy— light rain and wind. 
$ 21 
29.131 
45.5 
29.091 
47.0 
42 
42.6 
47.8 
40.3 
47.8 
E 
Foggy— light rain and wind. 
h 22 
29.218 
48.3 
29.204 
49.2 
47 
47.7 
48.5 
41.7 
48.5 
E 
Foggy — light rain. 
©23 
29.325 
49.0 
29.385 
49.2 
47 
47.3 
44.5 
45.7 
46.7 
0.250 
E 
Light rain and fog. 
D 24 
29.488 
42.7 
29.502 
41.2 
32 
35.7 
35.5 
33.1 
35.5 
0.083 
NNE 
f A.M. Snow. P.M. Light clouds and 
l wind. 
<? 25 
29.802 
38.8 
29.881 
39.3 
30 
33.5 
34.2 
30.4 
34.2 
NNW 
Light clouds and wind. 
5 26 
30.085 
34.2 
30.132 
35.8 
22 
28.7 
32.6 
24.7 
32.6 
N 
Fine and cloudless. 
V 27 
29.939 
33.6 
29.522 
36.0 
21 
29.7 
38.8 
25.3 
38.8 
SW 
Overcast — light rain and wind. 
O ? 28 
29.650 
37.6 
29.656 
38.4 
27 
33.0 
35.0 
28.7 
35.0 
0.194 
NNW 
f Fine and cloudless— light haze and 
I wind. 
*2 29 
29.874 
36.2 
29.857 
37.0 
26 
32.5 
33.5 
30.7 
33.5 
0.014 
N 
Overcast — light wind. 
©30 
29.833 
34.6 
29.834 
36.1 
20 
30.0 
32.3 
26.3 
32.3 
E 
Lightly cloudy. 
29.727 
33.7 
29.623 
SSE 
/ Lightly overcast. Fall of snow early 
J 31 
36.2 
27 
30.5 
33.8 
25.2 
33.8 
1 A.M. and at 1 P.M. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.850 
39.2 
29.818 
40.3 
34.0 
36.2 
38.5 
32.5 
38.9 
0.541 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
9 A.M. 
29.832 
3 P.M. I 
29.797 J 
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. 
