METEOROLOGICAL JOURNAL FOR JULY AND AUGUST, 1842 . 
9 o’clock, A. M. 
3 o’clock, P.M. 
05 * 
ti d 
'd 
C t-1 
External Thermometers. 
0> 
XX 
1842 . 
Barometer 
uncorrected. 
Att. 
Barometer 
uncorrected. 
Att. 
O <K 
fil'd 
gS* 
“ 3 S 
Q H 
Fahrenheit. 
Self-registering 
■EteS 
,o.S< 
REMARKS. 
Flint 
Glass. 
Crown 
Glass. 
Ther. 
Flint 
Glass. 
Crown 
Glass. 
Ther. 
9 A.M. 
3P.M. 
Lowest 
Highest 
~ ? Cl 
■a* 
3 
F 1 
29.814 
29.806 
64.0 
29.904 
29.896 
66.4 
57 
02.6 
51.3 
65.2 
52.3 
70.0 
.in 
w 
("A.M. Overcast — light rain and wind. P.M. Cloudy — light wind. 
S 2 
29.914 
29.908 
81.2 
29.894 
29.886 
68.3 
55 
08.3 
63.0 
65.7 
52.2 
76.6 
.316 
w 
L Evening, Overcast— light rain. 
f Cloudy — light breeze, with occasional showers throughout the day. 
1 Evening, Starlight— light clouds. 
Cloudy — It. breeze throughout the day. Ev. Overcast — slight rain. 
0 3 
30.034 
30.026 
79.0 
30.010 
30.002 
69.0 
57 
08.3 
62.8 
69.3 
52.0 
77.6 
.213 
w 
M 4 
29.806 
29.800 
65.3 
29.758 
29.750 
69.0 
60 
06.6 
64.7 
71.7 
58.8 
71.4 
.100 
s 
/ A.M. Overcast — light breeze. P.M. Cloudy. Evening, Fine and 
T 5 
29.746 
29.740 
82.8 
29.796 
29.792 
69.4 
59 
10.0 
66.7 
68.5 
61.4 
75.7 
.055 
SSEvar 
f Cloudy — very high wind, with occasional showers throughout the 
W 6 
30.136 
30.130 
83.4 
30.184 
30.178 
69.0 
52 
09.3 
62.3 
67.2 
52.4 
79.4 
.033 
W 
c day. Rainbow at § p. 6. Evening, Overcast — rain. 
f A.M. Fine— It. clouds & breeze. P.M. Cloudy — It. breeze. Ev. 
T 7 
30.150 
30.142 
67.2 
30.032 
30.024 
65.8 
55 
08.2 
63.2 
59.0 
52.3 
72.7 
.022 
SSE 
(. Fine and starlight. [rain & breeze. Ev. The same. 
A.M. Cloudy — stiff breeze — rain in the night. P.M. Overcast— light 
OF 8 
29.856 
29.848 
70.4 
29.776 
29.768 
66.4 
56 
06.7 
61.8 
64.3 
54.0 
66.6 
..041 
s 
I A.M. Fine — light clouds and breeze. P.M. Cloudy — high wind. 
S 9 
29.748 
29.742 
73.3 
29.790 
29.782 
66.0 
58 
07.7 
62.8 
62.4 
54.3 
73.3 
.102 
w 
X Evening, Cloudy — light shov'ers. 
f A.M. Cloudy — light breeze. P.M. Overcast — light rain and wind. 
010 
29.970 
29.962 
80.8 
29.950 
29.946 
68.0 
57 
08.0 
62.2 
69.0 
53.2 
77.8 
.116 
s 
t Evening, Cloudy— light rain. 
Fine— light clouds and breeze throughout the day. Ev. Cloudy. 
MU 
29.724 
29.718 
68.0 
29.650 
29.644 
68.9 
61 
07.0 
67.2 
73.4 
56.3 
82.7 
.072 
s 
f Cloudy — high wind throughout the day. (Rain— high wind during 
T 12 
29.922 
29.914 
76.0 
30.020 
30.012 
70.0 
59 
08.0 
65.0 
71.5 
58.0 
75.2 
.038 
WNW 
X the night.) Evening, Cloudy— light rain. 
A.M. Cloudy — It. breeze. P.M. Fine— It. elds. Ev. Fine & starlight. 
W 13 
30.212 
30.204 
69.7 
30.242 
30.234 
70.4 
60 
07.8 
66.5 
70.8 
57.3 
76.2 
SW var. 
f A.M. Cloudy— stiff breeze. P.M. Dark heavy clouds — stiff breeze. 
g T H 
30.432 
30.424 
83.6 
30.402 
30.394 
70.6 
60 
07.0 
63.2 
70.3 
55.0 
76.3 
W 
f Fine — light clouds and breeze throughout the day. Evening, Fine 
p F 15 
30.468 
30.462 
81.0 
30.356 
30.348 
69.8 
54 
09.8 
64.3 
71.7 
56.0 
76.3 
N 
C A.M. Fine — light clouds and breeze. P.M. Fine & cloudless. 
S 16 
30.250 
30.246 
84 0 
30.150 
30.142 
69.4 
59 
07.5 
62.8 
65.8 
54.6 
73.2 
E 
X Evening, Fine and starlight. 
Fine— It. clouds & breeze throughout the day. Ev. Fine & moonlight. 
©17 
29.978 
29.972 
84.5 
29.890 
29.886 
70.0 
63 
07.2 
64.0 
65.8 
57.3 
74.6 
E 
Fine — light clouds — stiff breeze throughout the day. Ev. Overcast. 
Ml 8 
29.886 
29.882 
70.2 
29.894 
29.888 
70.4 
62 
06.7 
67.2 
75.8 
59.7 
75.6 
.036 
NW 
( A.M. Cloudy — It. fog and breeze. Rain in the night. P.M. Cloudy. 
T 19 
29.888 
29.880 
68.4 
29.842 
29.836 
70.4 
61 
05.9 
64.3 
68.8 
62.0 
77.8 
E 
f Cloudy — light breeze throughout the day — shower early. Evening, 
W 20 
29.790 
29.784 
76.2 
29.768 
29.762 
69.0 
60 
07.3 
64.7 
63.0 
57.3 
71.0 
.033 
s 
X Dark heavy clouds— light rain. 
J A.M. Fine — light clouds and breeze. P.M. Cloudy — light showers. 
T 21 
29.772 
29,766 
67.3 
29.834 
29.826 
66.5 
61 
05.9 
60.8 
60.4 
56.8 
72.4 
.038 
w 
X Ev. Moonlight, with lightning. [rain. Ev. Fine & moonlight. 
A.M. Ovct. — It. rain & breeze. P.M. Cloudy, with occasionall} 7 slight 
© F 22 
30.046 
30.040 
78.8 
30.108 
30.100 
66.7 
54 
08.0 
59.8 
61.7 
52.6 
72.2 
.025 
NW 
Cloudy— light breeze throughout the dav. Evening, The same. 
S 23 
30.262 
30.256 
67.3 
30.246 
30.238 
65.6 
52 
06.7 
58.4 
64.5 
55.0 
64.4 
NNW 
f A.M. Cloudy— light breeze. P.M. Fine — light clouds and breeze. 
1 Evening, Fine and moonlight — light fog. 
©24 
30.180 
30.174 
76.2 
30.076 
30.070 
67.2 
58 
07.2 
64.3 
73.5 
53.7 
79.7 
NNW 
( A.M. Thick haze — light breeze. P.M. Cloudy— light breeze. Ev. 
M 25 
29.966 
29.958 
65.0 
29.954 
29.946 
69.0 
63 
05.2 
64.7 
68.2 
57.6 
76.7 
E 
f A.M. Cloudy — light breeze. P.M. Fine — light clouds and breeze. 
T 26 
30.046 
30.040 
79.8 
30.062 
30.054 
68.8 
58 
06.7 
61.7 
69.3 
52.4 
72.3 
N 
\ Evening, Fine and moonlight. 
Fine— It. clouds & breeze throughout the day. Ev. Fine & starlight. 
W 27 
30.212 
30.204 
63.6 
30.200 
30.192 
66.7 
58 
05.2 
57.4 
68.7 
56.8 
71.4 
.050 
E 
f A.M. Ovct. — It. rain. P.M. Fine — It. elds. & breeze. Ev. Ovct.— 
\ sit. rain. £ p. 12, very hw. thunder & vivid lightning, until £ to 6. 
T 28 
30.112 
30.104 
70.0 
30.020 
30.012 
67.4 
60 
02.8 
61.3 
69.8 
56.3 
70.3 
.091 
W 
( A.M. Overcast — thunder and lightning until £ p. 6. At £ to 6, very 
heavy rain. P.M. Fine — It. clouds. Ev. Moonlight — It. clouds. 
F 29 
29.910 
29.902 
64.8 
29.942 
29.936 
66.3 
53 
01.7 
53.0 
61.2 
55.2 
71.6 
.205 
N 
f A.M. Overcast — light rain and wind. P.M. Fine — light clouds — 
S 30 
30.082 
30.074 
63.2 
30.096 
30.090 
64.3 
52 
07.2 
57.3 
62.7 
50.4 
64.4 
.150 
NW 
\ stiff breeze. Evening, Fine and starlight. 
Cloudy — It. breeze throughout the day. Ev. Fine & starlight — It. elds. 
©31 
30.186 
30.178 
61.8 
30.206 
30.198 
64.4 
53 
05.7 
57.8 
64.8 
55.7 
64.5 
NW 
A.M. Ovct.— It. wind. P.M. Cloudy— It. breeze. Ev. Fine & starlt. 
62.1 
67.2 
73.5 
Sum. 
1 9 A.M. 3 P.M. 
MEAN. 
30.016 
30.009 
73.1 
30.002 
29.995 
68.1 
58 
06.8 
55.5 
1.847 
Mean Barometer corrected < F. 29.901 .. 29.900 
XC. 29.893 .. 29.893 
M 1 
30.340 
30.334 
62.5 
30.310 
30.302 
64.0 
53 
03.5 
58.0 
67.3 
55.5 
67.0 
N 
Overcast — light wind throughout the day. Evening, The same. 
T 2 
30.230 
30.226 
62.0 
30.112 
30.108 
64.5 
54 
05.0 
60.0 
70.6 
55.0 
69.0 
.186 
SSE 
f A.M. Overcast — light wind. P.M. Fine — light clouds— brisk w'ind. 
1 Evening, The same. 
W 3 
30.004 
30.000 
65.0 
29.950 
29.944 
68.0 
62 
02.5 
64.2 
77.4 
58.5 
71.5 
.027 
N 
f A.M. Overcast— light wind. P.M. Fine— light clouds and wind. 
T 4 
29.916 
29.912 
73.0 
29.884 
29.878 
70.5 
60 
06.5 
70.0 
80.0 
61.0 
78.5 
N 
f A.M. Fine— light clouds and wind. P.M. Lightly overcast— brisk 
F 5 
29.998 
29.994 
70.0 
29.982 
29.976 
71.0 
63 
06.5 
69.4 
73.8 
64.5 
81.5 
S 
X wind. Ev. Fine — It. clouds & wind. [Ev. The same. 
A.M. Overcast — brisk wind. P.M. Fine — light clouds — brisk wind. 
S 6 
29.968 
29.964 
69.0 
29.974 
29.970 
70.0 
64 
05.5 
68.2 
68.6 
63.2 
75.5 
.172 
s 
f A.M. Overcast — light rain & wind. P.M. Slightly overcast — light 
X wind. Evening, Overcast — light rain. 
0© 7 
30.040 
30.036 
71.2 
30.000 
29.996 
70.4 
56 
07.0 
65.0 
73.0 
60.0 
70.5 
SE var. 
Fine — light clouds and wind throughout the day. Ev. The same. 
M 8 
30.110 
30.104 
72.0 
30.090 
30.084 
71.0 
60 
06.9 
68.0 
74.5 
58.0 
74.5 
S 
f A.M. Lightly overcast— light wind. P.M. Fine — light clouds and 
( wind. Evening, Fine and starlight. [ starlight. 
T 9 
30.092 
30.086 
74.0 
30.004 
30.000 
72.0 
59 
08.4 
69.8 
77.0 
60.2 
80.0 
ESE 
Fine— nearly cloudFess— brisk wind throughout the day. Ev. Fine & 
W 10 
29.794 
29.790 
74.0 
29.660 
29.656 
75.0 
63 
12.5 
80.0 
83.6 
66.0 
82.5 
SE 
X Ev. Overcast— heavy rain, with thunder and lightning. 
/ Fine— light clouds, with brisk wind throughout the day. Evening, 
X Fine and starlight. 
Til 
29.936 
29.932 
76.0 
30.090 
30.084 
72.0 
57 
08.2 
65.0 
69.9 
62.0 
87.0 
.250 
E var. 
F 12 
30.350 
30.346 
74.0 
30.334 
30.328 
72.0 
58 
06.8 
66.4 
73.0 
59.5 
76.0 
.138 
SSE 
( A.M. Fine — light clouds — brisk wind. P.M. Fine and cloudless — 
t brisk wind. Evening, Fine and starlight — brisk wind. 
S 13 
30.468 
30.462 
69.0 
30.472 
30.466 
71.2 
64 
03.5 
67.5 
73.5 
61.2 
76.0 
.172 
S 
Overcast — light wind throughout the day. Ev. Fine and starlight. 
©14 
30.472 
30.466 
72.0 
30.396 
30.392 
73.0 
65 
06.0 
72.0 
79.6 
65.2 
75.2 
.083 
W 
f A.M. Light fog. P.M. Fine— light clouds and wind. Evening, 
X Fine and starlight — light wind. 
to M 15 
30.288 
30.282 
73.0 
30.210 
30.204 
74.0 
65 
05.0 
70.7 
83.0 
61.0 
80.2 
ESE 
A.M. Light fog. P.M. Fine — nearly cloudless. Ev. Fine & starlight. 
g Tie 
30.248 
30.244 
73.5 
30.216 
30.210 
74.0 
63 
10.0 
72.7 
81.7 
63.4 
84.0 
ENE 
Fine — It. clouds and wind throughout the day. Ev. Fine & starlight. 
< W 17 
30.186 
30.182 
73.4 
30.104 
30.098 
74.0 
62 
05.5 
67.0 
74.2 
61.5 
82.5 
E 
f Fine — nearly cloudless — brisk wind throughout the day. Evening, 
X Fine and moonlight. 
T 18 
30.012 
30.006 
74.0 
29.950 
29.946 
75.5 
68 
05.5 
73.4 
85.3 
63.0 
74.5 
ESE 
/ Fine— light clouds and wind throughout the day. Evening, Lightly 
( overcast— light wind. 
F 19 
29.996 
29.992 
74.0 
29.972 
29.966 
74.5 
65 
06.0 
70.4 
70.6 
67.2 
86.0 
wsw 
Overcast — It. wind throughout the day. Ev. Moonlight— It. clouds. 
( Overcast — brisk wind throughout the day. Evening. Fine and 
S 20 
30.058 
30.052 
72.0 
30.074 
30.068 
73.0 
60 
07.0 
66.8 
69.8 
63.0 
75.5 
VVNWv. 
X moonlight — brisk wind, 
®021 
30.058 
30.052 
70.0 
30.014 
30.010 
72.0 
60 
06.5 
69.8 
73.7 
62.0 
72.2 
S 
f A.M. Heavy clouds— brisk wind. P.M. Fine — light clouds— brisk 
t wind. Evening, Fine— light clouds and wind. 
M 22 
30.012 
30.006 
72.0 
29.984 
29.980 
72.0 
59 
09.0 
70.0 
77.0 
60.5 
74.5 
NNE 
Fine — It. clouds & wind throughout the day. Ev. Fine & moonlight. 
( A.M. Light fog and wind. P.M. Fine— light clouds— brisk wind. 
T 23 
29.966 
29.960 
73.0 
29.838 
29.834 
73.0 
64 
05.0 
72.0 
75.5 
65.0 
79.0 
S 
X Evening, Fine and moonlight. 
( A.M. Thick fog— light wind. P.M. Fine— light clouds and wind. 
W 24 
29.900 
29.896 
69.0 
29.810 
29.804 
71.0 
56 
05.5 
62.8 
74.0 
59.5 
80.0 
SW 
X Evening, Overcast— rain, with vivid lightning. 
T 25 
29.760 
29.754 
67.0 
29.750 
29.744 
69.0 
61 
02.0 
61.5 
69.0 
57.5 
74.5 
.166 
NE 
f Overcast — brisk wind with showers throughout the day. Ev. Over- 
[ cast — very heaw rain with lightning, with high wind. 
F 2 G 
29.890 
29.886 
69.0 
29.884 
29.880 
70.0 
63 
05.5 
68.0 
73.0 
61.0 
70.5 
.369 
ENE 
A.M. Lightly ovct. — It. wind. P.M. Fine— It. elds. & wind. Ev. Same. 
( A.M. Overcast— brisk wind. P.M. Fine— It. clouds— brisk wind. 
S 27 
30.008 
30.004 
67.0 
29.980 
29.974 
69.0 
61 
04.0 
63.0 
70.8 
60.0 
74.0 
N 
[ Evening, The same. 
CA.M. Overcast. P.M. Fine— light clouds and wind. Evening, 
©28 
M 29 
30.046 
30.028 
30.040 
30.022 
67.0 
66.0 
30.032 
29.996 
30.026 
29.992 
69.0 
69.0 
61 
63 
02.0 
01.0 
62.0 
63.0 
69.5 
71.0 
61.0 
60.0 
71.5 
70.5 
.127 
.283 
N 
NNE 
[ Fine and starlight. 
f A.M. Ovct. —It. wind. P.M. Fine— It. elds. & wind. Ev. Tremendous 
[ heavy rain between 4 and 6 p.m., with lightning & thunder — brisk 
T 30 30.076 
W 31 30.202 
30.070 
30.198 
66.5 
66.0 
30.048 
30.208 
30.044 
30.202 
68.0 
65.0 
61 
48 
02.0 
06.5 
63.0 
56.5 
67.4 
61.5 
60.0 
50.0 
72.0 
69.0 
1 . 827 * 
NW 
N 
Overcast— It. w r ind throughout the day. Ev. The same. [wind. 
[A.M. Lightly overcast — light wind. P.M. Fine — light clouds and 
[ wind. Evening, Lightly overcast. 
— 
Sum. 
< 9 A.M. 3 P.M. 
mean. 
30.079 
30.074 
70.3 
30.043 
30.038 
70.9 
60 
05.7 
67.0 
73.8 
60.8 
76.0 
3.800 
Mean Barometer corrected -J F. 29.971 .. 29.934 
( C . 29.9(35 .. 29.928 
The Observations for August were not taken by the Assistant Secretary on account of absence. 
* One of the heaviest showers, within the space of two hours, on the Royal Society’s records. 
