14 
METEOROLOGICAL JOURNAL FOR DECEMBER, 1828 
9 o’clock, A.M. 
3 o’clock, 
P.M. 
Dew 
External Thermometer. 
j 
1828. 
Point at 
Rain, in 
Direction 
1 
R rom. 
Attach. 
Barom. 
Attach. 
Therm. 
9 A.M. 
in de- 
Fahrenheit. 
Self-registering. 
inches, 
lead off 
it9A.M. 
of the 
Wind at 
9 A.M. 
Remarks. 
Deccmb. 
Therm. 
»rccs of 
Fahr. 
9 A.M. 
3 P.M. 
Lowest. 
Highest. 
D 1 
29.828 
54.3 
30.046 
49.8 
42 
49.3 
44.5 
48.3 
48.7 
NW 
Fine and clear — light wind. 
J 2 
30.455 
44.7 
30.367 
45.4 
25 
37.4 
39.7 
33.8 
41.7 
ESE 
Fine — light clouds. 
S 3 
30.170 
44.8 
30.108 
47.3 
41 
43.0 
49-0 
36.3 
50.0 
ssw 
f A.M. Fine — brisk wind. P.M. Over- 
\ cast. 
V- 4 
30.199 
48.8 
30.217 
50.7 
50 
50.4 
53.1 
42.3 
53.2 
wsw 
Light clouds — foggy. 
? 5 
30.185 
51.1 
30.088 
51.8 
50 
50.7 
48.7 
48.7 
50.7 
SSE 
Overcast and foggy. 
h 6 
29.932 
49.0 
29.869 
51.2 
46 
46.5 
50.8 
40.3 
50.8 
S 
Fine — lightly overcast. 
• O 7 
29.590 
51.7 
29.690 
52.8 
50 
50.4 
50.8 
45.7 
51.4 
0.036 
SSW 
I Fine and cloudless. Strong wind early 
t A.M. Thunder with rain at night. 
D 8 
29.389 
50.4 
29.200 
50.8 
46 
46.9 
46.7 
44.2 
47.7 
0.231 
sw 
f Cloudy. Thunder and lightning with 
l heavy rain and brisk wind at 1 P.M. 
i » 
29.668 
44.9 
29.833 
47.8 
39 
39.8 
42.7 
37.4 
43.7 
0.278 
sw 
Fine and cloudless. 
5 10 
30.160 
45.7 
30.149 
48.0 
43 
44.3 
46.7 
37.8 
50.0 
wsw 
Fine and clear— light clouds. 
V- 11 
29.953 
49.8 
30.141 
51.8 
49 
50.7 
50.8 
43.8 
52.3 
ssw 
A.M. Cloudy. P.M. Fine and clear. 
? 12 
30.388 
48.6 
30.349 
51.7 
46 
46.4 
51.7 
41.6 
51.7 
sw 
Overcast and foggy. 
h 13 
30.380 
52.3 
30.379 
53.8 
50 
50.8 
52.6 
45.8 
52.7 
ssw 
Overcast and foggy. 
©14 
30.444 
52.0 
30.401 
52.1 
48 
48.3 
47.0 
47.3 
48.3 
ESE 
Fine and cloudless. 
5 15 
30.288 
46.3 
30.219 
47.8 
41 
41.3 
45.0 
39.3 
47.5 
ESE 
Overcast and foggy. 
3 16 
30.106 
50.0 
30.039 
51-2 
46 
48.4 
49.2 
40.2 
51.2 
SSE 
A.M. Fine — cloudy. P.M. Overcast. 
5 17 
29.856 
51.8 
29.836 
53.2 
50 
50.2 
52.3 
47.0 
55.0 
0.083 
SSW 
Overcast and foggy. Rain early A.M. 
H- 18 
29.446 
54.5 
29.573 
55.3 
55 
55.3 
51.6 
49.2 
55.3 
SSW 
/ A.M. Violent wind early. Heavy rain. 
1 P.M. Fine and cloudless. 
? 19 
29.745 
50.3 
29.878 
52.3 
45 
46.4 
49.8 
42.0 
51.5 
0.075 
WSW 
Fine — light clouds. 
h 20 
29.999 
52.8 
30.01 1 
54.0 
51 
52.2 
53.4 
45.3 
53.4 
NNW 
Overcast. 
0021 
30.088 
54.0 
30.071 
55.3 
52 
52.7 
55.0 
51.3 
55.0 
WSW 
Overcast. 
3) 22 
30.120 
54.3 
30.046 
55.8 
51 
52.3 
54.7 
50.7 
54.7 
SW 
Overcast. 
$ 23 
29.970 
53.8 
29.884 
55.0 
51 
50.9 
51.4 
48.8 
46.5 
sw 
Overcast and foggy. 
5 24 
29.676 
52.4 
29.570 
53.8 
47 
47.7 
51.3 
46.4 
51.3 
wsw 
Overcast and foggy. Evening rainy. 
U 25 
29.446 
49.7 
29.484 
51.0 
45 
45.0 
45.7 
43.7 
45.7 
0.186 
sw 
f A.M. Foggy. P.M. Fine— lightly over- 
\ cast. 
? 26 
29.590 
45.0 
29.561 
47.8 
38 
38.6 
43.0 
35.8 
44.3 
s 
Fine and cloudless— light haze. 
h 27 
29.682 
44.3 
29.744 
45.8 
39 
39.0 
42.3 
36.8 
42.3 
ESE 
Fine and cloudless. 
0 28 
29.887 
44.6 
29.967 
46.3 
39 
39.8 
44.6 
38.0 
44.6 
ESE 
A.M. Strong fog. P.M. Overcast— rain 
D 29 
30.346 
44.7 
30.382 
45.0 
41 
41.4 
40.6 
39.3 
41.4 
ESE 
A.M. Strong white fog. P.M. Overcast 
$ 30 
30.377 
42.3 
30.312 
45.9 
40 
40.7 
44.7 
34.5 
44.7 
ESE 
Overcast— light fog. 
9 31 
30.064 
45.7 
29.959 
47.0 
43 
44.4 
47.4 
39.8 
47.7 
SSW 
Overcast. Light rain P.M. 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Mean 
Sum 
29.981 
49.2 
29.980 
50.6 
45.1 
46.5 
48.3 
42.6 
49.2 
0.889 
Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr | 
9 A.M. 
29.942 
3 P.M. ) 
29.936 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 arc of Mean Time, the day beginning at Midnight. 
The Thermometers are graduated by Fahrenheit’s Scale. 
The Barometer is divided into inches and decimals. 
