METEOROLOGICAL JOURNAL FOR JANUARY, 1829 
9 o’clock 
A.M. 
3 o’clock 
P.M. 
Dew 
External Thermometer. 
1829. 
Point at 
Rain, in 
Direction 
Barom. 
Barom. 
Attach. 
9 A.M. 
in de- 
Fahrenheit. 
Self-registering. 
inches. 
Read off 
of the 
Wind at 
Remarks 
January. 
Therm. 
Therm. 
grees of 
at 9 A.M 
9 A.M. 
Fahr. 
9 A.M. 
3 P.M. 
Lowest. 
Highest. 
V- 1 
29.854 
44.0 
29.822 
46.8 
40 
40.8 
45.7 
37.2 
45.7 
0.008 
WSW 
Fine and clear — light brisk wind. 
? 2 
29.860 
43.2 
29.917 
45.1 
37 
38.7 
43.0 
36.8 
43.0 
NNW 
Fine— faint haze, and light wind. 
h 3 
29.916 
42.8 
29.921 
43.8 
38 
38.8 
41.5 
35.3 
41.5 
WSW 
A.M. Strong haze. P.M. Fine. 
O 4 
29.578 
43.7 
29.453 
45.7 
42 
42.2 
42.8 
37.9 
43.7 
0.219 
WSW 
r A.M. Foggy— rain. P.M. Cloudless 
l —brisk wind. 
• D 5 
29.704 
40.2 
29.814 
40.3 
34 
35.8 
36.0 
34.4 
36.7 
0.008 
N 
Fine and cloudless — light wind. 
3 6 
29.976 
35.8 
29.973 
38.0 
31 
31.0 
35.2 
29.3 
35.2 
N 
f A.M. Cloudless — light wind. P.M. 
\ Hazy. Snow at night. 
5 7 
30.011 
37.2 
29.951 
38.6 
34 
35.4 
37.3 
30.2 
37.3 
NNE 
A.M. Foggy. P.M. Fine. 
n 8 
29.872 
36.7 
29.856 
37.3 
32 
33.3 
34.7 
31.8 
34.7 
N 
Foggy. P.M. Snow. 
? 9 
29.795 
37.6 
29.707 
39.0 
33 
34.8 
36.7 
32.5 
36.7 
N 
Foggy— light wind. 
h 10 
29.624 
38.7 
29.656 
39.9 
35 
36.0 
38.3 
33.8 
38.3 
N 
Light clouds — foggy. 
oil 
29.878 
38.3 
29.910 
37.3 
30 
30.6 
31.3 
29.8 
32.6 
E 
Overcast and hazy. 
D 12 
29.989 
37.4 
29.971 
37.8 
32 
36.7 
36.2 
29.3 
36.7 
N 
Overcast and hazy. 
3 13 
30.090 
37.3 
30.076 
38.8 
32 
35.9 
37.8 
34.0 
37.8 
E 
Overcast and foggy. 
$ 14 
30.049 
37.7 
30.026 
38.9 
34 
34.7 
37.3 
32.7 
37.3 
N 
f Lightly overcast and foggy. Snow at 
V 15 
29.924 
38.8 
29.809 
39.7 
35 
36.3 
37.4 
34.0 
37.4 
0.014 
NNE 
Overcast and foggy. 
? 16 
29.631 
37.4 
29.609 
36.3 
25 
32.2 
30.2 
31.0 
32.2 
NNE 
Overcast and foggy. 
h 17 
29.762 
33.7 
29.807 
35.2 
21 
30.0 
32.0 
27.3 
32.0 
N 
Overcast and foggy. 
©18 
29.967 
33.5 
29.999 
34.7 
25 
27.8 
31.7 
25.8 
31.7 
N 
Dense fog — dark. 
D 19 
30.130 
32.8 
30.117 
33.7 
25 
27.7 
33.7 
25.7 
33.7 
N 
f A.M. Very dense fog. P.M. Fine 
l and clear. Evening foggy. 
O 3 20 
30.032 
31.3 
29.971 
33.6 
24 
27.7 
31.4 
22.7 
31.4 
N 
f A.M. Fog and hoar trost. P.M. Fine 
l — strong haze. 
' $ 21 
29.893 
32.7 
29.829 
32.6 
22 
28.4 
29.3 
26.3 
29.3 
E 
Overcast and foggy. Light snow. 
n 22 
29.673 
29.7 
29.635 
30.6 
18 
25.2 
29.5 
22.3 
29.5 
ESE 
Fine and cloudless— light wind. 
? 23 
29.547 
29.8 
29.489 
28.7 
16 
25.3 
22.8 
23.4 
25.3 
E 
Light clouds and haze. Snow P.M. 
k 24 
29.524 
25.5 
29.559 
28.6 
22 
22.7 
27.7 
19.5 
27.7 
NNW 
Overcast and hazy— light wind. Snow. 
©25 
29.641 
27.6 
29.606 
28.3 
22 
22.6 
24.4 
21.3 
33.0 
W 
A.M. Overcast. P.M. Fine & cloudless. 
D 26 
29.041 
30.8 
29.100 
34.4 
35 
35.2 
43.2 
20.7 
43.2 
0.042 
E 
A.M. Foggy. 
3 27 
29.113 
36.7 
29.131 
39.7 
38 
38.3 
41.4 
34.2 
41.4 
S 
Fine — lightly cloudy. 
$ 28 
29.377 
37.7 
29.517 
40.8 
35 
35.1 
41.6 
33.4 
41.6 
sw 
f A.M. Cloudless. P.M. Overcast and 
l hazy. 
H. 29 
29.547 
37.7 
29.473 
40.8 
34 
35.2 
40.3 
32.7 
40.3 
NE 
Overcast. Strong fog A.M. 
? 30 
29.526 
39.4 
29.664 
42.2 
35 
34.8 
40.4 
32.2 
40.4 
N 
Lightly overcast. Fine at noon. 
h 31 
30.141 
40.3 
30.230 
38.7 
37 
37.4 
38.7 
34.1 
38.7 
N 
Cloudy — light wind. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.763 
36.3 
29.761 
37.6 
30.7 
33.1 
35.8 
30.1 
36.3 
0.291 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 
9 A.M. 
29.755 
3 P.M. ^ 
29.750 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) =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. 
