METEOROLOGICAL JOURNAL FOR MARCH, 1831 
9 o’clock, A.M. 
3 o’clock 
P.M. 
Dew 
External Thermometer. 
1831. 
March. 
Point at 
Rain, in 
Direction 
Barom. 
Attach. 
Therm. 
Barom. 
Attach. 
Therm. 
9 A.M. 
in de- 
grees of 
Fahr. 
Fahrenheit. 
Self-registering. 
inches. 
Read off 
at9A.M. 
of the 
Wind at 
9 A.M. 
Remarks. 
9 A.M. 
3 P.M. 
Lowest. 
Highest 
<? 1 
29.844 
40.1 
29.897 
45.4 
38 
38.8 
46.5 
34.3 
46.5 
w 
Fine and cloudless — light haze. 
5 2 
29.751 
44.7 
29.691 
48.6 
47 
47.3 
53.5 
37.8 
53.7 
0.036 
wsw 
Overcast. Light fog A.M. 
V 3 
29.622 
49.7 
29.641 
52.5 
51 
51.4 
54.0 
46.6 
54.3 
0.075 
sw 
CA.M. Foggy — light rain. P.M. Over- 
? 4 
29.764 
52.7 
29.897 
55.0 
49 
49.8 
52.8 
49.8 
53.7 
0.222 
NW 
( A.M. Foggy. P.M. Fine— light clouds 
\ and wind. 
h 5 
29.830 
52.8 
29.641 
54.2 
49 
49.4 
51.3 
47.3 
51.3 
ssw 
Overcast — light wind. 
O 6 
29.154 
53.2 
29.161 
54.3 
51 
51.3 
51.3 
48.6 
51.8 
S var. 
Lightly cloudy — light unsteady wind. 
D 7 
29.684 
51.3 
29.776 
53.4 
47 
47.7 
50.5 
43.8 
50.7 
NW 
Fine and clear — light clouds. 
00 
29.753 
48.6 
'29.594 
52.5 
45 
45.3 
50.8 
38.3 
51.4 
0.022 
ESE 
Cloudy — light wind and fog. 
5 9 
29.595 
49.4 
29.612 
52.6 
44 
44.4 
49.8 
40.5 
50.3 
SW 
f A.M. Fine and cloudless. P.M. Hail 
l and rain with light wind. 
% 10 
29.926 
46.8 
29.938 
50.7 
39 
39.7 
50.6 
35.3 
50.6 
0.061 
w 
Fine and cloudless. 
? 11 
29.714 
51.7 
29.597 
53.4 
49 
49.6 
51.6 
38.7 
51.6 
0.028 
SSE 
Overcast — light rain and wind. 
k 12 
29.937 
49.0 
29.756 
53.0 
43 
43.4 
49.8 
37.6 
51.3 
WSW 
A.M. Fine. P.M. Light rain and wind. 
G 13 
29.660 
49.7 
29.607 
51.0 
45 
46.8 
46.7 
40.8 
48.7 
WSW 
f Overcast. Heavy showers, with light 
© 5 14 
29.690 
47.9 
29.681 
50.3 
41 
44.3 
45.5 
39.3 
49.7 
0.086 
WSW 
r Fine and clear — light clouds. Hail and 
t rain P.M. 
3 15 
29.778 
47.3 
29.659 
50.0 
43 
43.7 
49.7 
40.3 
52.3 
0.012 
sw 
Light rain. 
5 16 
29.648 
50.8 
29.741 
53.3 
51 
52.7 
55.7 
43.2 
56.3 
0.014 
w 
Cloudy— light wind. 
y 17 
29.851 
53.3 
29.893 
55.8 
53 
54.3 
57.6 
52.3 
57.7 
SSW var. 
Fine — cloudy. 
? 18 
30.184 
52.3 
30.198 
55.4 
52 
46.3 
50.8 
40.3 
41.0 
WNW 
Fine and clear — light clouds. 
h 19 
30.217 
49.7 
30.172 
53.5 
42 
43.8 
51.0 
37.7 
51.5 
WSW 
Fine — lightly cloudy. 
0 20 
30.112 
49.6 
30.072 
52.7 
43 
44.7 
52.7 
41.8 
52.7 
w 
Lightly cloudy — light wind and fog. 
D 21 
30.092 
51.4 
30.097 
54.2 
49 
49.5 
54.4 
44.3 
54.4 
N 
Overcast — hazy. 
$ 22 
30.262 
50.7 
30.283 
53.0 
45 
46.7 
48.3 
43.7 
48.3 
0.083 
ESE 
Fine — light clouds. 
$ 23 
30.369 
46.9 
30.297 
47.8 
34 
42.4 
42.3 
37.7 
44.6 
E 
Fine — lightly cloudy — light brisk wind. 
Tf. 24 
29.958 
41.3 
29.811 
43.2 
35 
36.1 
38.4 
31.7 
40.3 
N 
r Overcast — light brisk wind.— Snow 
t A.M. 
9 25 
29.653 
44.3 
29.570 
47.7 
39 
41.7 
44.6 
34.3 
44.7 
E 
Lightly cloudy— light wind. 
lz 26 
29.345 
45.3 
29.429 
49.8 
43 
43.7 
54.3 
40.3 
54.7 
0.061 
E 
r A.M. Showers, with fog and light 
t wind. P.M. Fine. 
G 27 
29.906 
51.4 
29.941 
53.7 
51 
51.7 
53.3 
42.6 
59.4 
0.153 
S 
Fine and clear — light clouds. 
O 5 28 
30.056 
51.3 
30.053 
55.3 
47 
47.7 
56.7 
42.3 
59.4 
N 
( Fine and clear — light clouds.— Hazy 
1 A.M. 
S 29 
30.165 
47.7 
30.168 
48.0 
42 
42.7 
44.7 
39.7 
45.0 
N 
Overcast — light wind. 
9 30 
30.281 
45.3 
30.277 
49.6 
35 
41.6 
48.2 
38.5 
49.7 
N 
Overcast. Hazy A.M. 
y 31 
30.401 
44.6 
30.398 
48.6 
38 
42.4 
48.0 
37.3 
48.3 
N 
Fine and clear. Clouds and haze A.M. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.877 
48.7 
29.856 
51.6 
44.5 
45.8 
50.2 
40.9 
50.8 
0.883 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr 
9 A.M. 
1 29.834 
3 P.M. > 
29.801 5 
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). 
The External Thermometer is 2 feet higher than the Barometer Cistern. 
= 95 feet. 
Height of the Receiver of the Rain Gauge above the Court of Somerset House 
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. 
= 79 feet 0 in. 
