METEOROLOGICAL JOURNAL FOR JULY AND AUGUST, 1839 . 
9 o’clock, A.M. 
3 o’clock, P.M. 
tf s: 
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External Thermometers. 
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REMARKS. 
Flint 
Glass. 
Crown 
Glass. 
Ther 
Flint 
Glass. 
Crown 
Glass. 
Ther. 
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. .Q a 
<a A 
s H 
9 A.M 
3 P.M. 
Lowes 
Highes 
c,s w 
t 
S3 
u 
3 
M 1 
30.312 
30.304 
58.2 
30.308 
30.302 
60.4 
1 46 
06.3 
55.2 
61.8 
48.6 
55.5 
N 
If A.M. Cloudy— liuht brisk wind. P. M. Fine— light clouds & wind. 
T 2 
30.308 
30.300 
58.3 
30.298 
30.290 
60.7 
50 
04.6 
56.9 
63.3 
51.8 
63.3 
W 
t. Evening, Cloudy. 
Overcast — light wind throughout the day. Ev. Very slight rain. 
W 3 
30.308 
30.300 
62.3 
30.260 
30.252 
64.0 
53 
07.1 
61.3 
68.6 
53.5 
64.0 
N 
Cloudy— light breeze throughout the day. Evening, Overcast. 
T 4 
30.228 
30.222 
72.2 
30.184 
30.178 
66.7 
55 
06.1 
63.9 
73.3 
57.0 
66.7 
NE 
Fine — light clouds and wind throughout the day. Ev. Overcast. 
F 5 
30.208 
30.200 
64.3 
30.146 
30.140 
66.5 
58 
06.6 
62.8 
69.3 
57.8 
73.8 
E 
Overcast— light breeze throughout the day. Ev. Fine Sc clear. 
S 6 
30.040 
30.034 
75.8 
29.946 
29.940 
69.2 
62 
07.8 
66.8 
77.9 
56.5 
80.3 
SW 
/ A.M. Fine — light clouds. P.M. Fine— nearly cloudless— light wind. 
© 7 
M 8 
29.860 
29.664 
29.852 
29.658 
67.2 
71.0 
29.788 
29.654 
29.784 
29.650 
69.2 
68.9 
60 
61 
07.2 
08.0 
64.9 
66.2 
73.8 
67.4 
59.0 
61.0 
78.2 
74.4 
.094 
SE 
SSE 
( A.M. Cloudy — It. breeze. P.M. Lightly ovct. — brisk wind. Ev. Dark 
heavyclds. — thunder & lightning the whole evening — heavy rain, 
f A.M. Cloudy— light brisk wind, with heavy shower. P.M. Fine— 
T 9 
29.738 
29.734 
70.7 
29.748 
29.742 
69.4 
60 
08.1 
62.8 
65.4 
56.2 
73.2 
.044 
S 
L light clouds and wind. Evening, Fine and clear. [rain. 
A.M. Fine— It. elds. — brisk wind. P.M.Cldy. — very h. wind. Ev. Light 
OWio 
30.008 
30.004 
76.8 
29.996 
29.990 
66.8 
59 
08.3 
63.7 
66.7 
53.3 
77.3 
.022 
s 
f Cloudy— high wind throughout the day. Evening, Fine— light 
t clouds and wind. 
Til 
30.016 
30.012 
80.6 
29.946 
29.940 
69.6 
61 
08.5 
65.4 
70.7 
58.6 
78.3 
s 
f A.M. Fine— light clouds— brisk wind. P.M. Fine and cloudless — 
F 12 
29.852 
29.848 
69.5 
29.880 
29.874 
69.5 
61 
07.2 
67.4 
68.5 
62.4 
71.6 
s 
Cloudy — high wind throughout the day. Ev. Overcast— light rain. 
S 13 
30.116 
30.110 
76.2 
30.136 
30.130 
69.9 
60 
08.6 
64.3 
72.2 
56.6 
73.2 
.033 
s 
Fine— light clouds & breeze throughout the day. Ev. Fine & clear. 
©14 
%M15 
30.026 
30.016 
30.020 
30.010 
74.9 
73.4 
29.914 
30.070 
29.908 
30.062 
69.2 
70.2 
54 
61 
10.5 
08.3 
67.7 
65.2 
68.7 
70.7 
58.2 
57.9 
73.6 
70.4 
.069 
E 
SW var 
f A.M. Cloudy— light wind. P.M. Overcast— brisk wind. Ev. Dark 
l heavy clouds-high wind. [Cloudy-slight rain. 
Fine— light clouds, with light brisk wind throughout the dav. Ev. 
o T 16 
30.198 
30.192 
69.8 
30.192 
30.186 
68.7 
56 
07.8 
64.2 
69.8 
56.3 
69.3 
W 
/A.M. Cloudy— light rain and wind. P.M. Fine— light clouds and 
c wind. Evening, Fine and clear. 
W17 
30.100 
30.096 
77.3 
29.934 
29.926 
69.2 
58 
09.4 
65.4 
67.8 
53.2 
68.7 
( A.M. Fine — It. clouds and breeze. P.M. Cloudy — brisk wind. Ev. 
T IS 
29.550 
29.542 
67.3 
29.574 
29.568 
69.4 
64 
05.2 
67.0 
66.8 
62.3 
72.0 
.222 
SE 
1 Overcast— much lightning, with heavy rainai^p. li. r& clear. 
A.M. Ovct.— heavy rain— h. wind. P.M.Cldy.— very h. wind. Tv. Fine 
F 19 
29.636 
29.630 
66.9 
29.666 
29.658 
67.6 
59 
03.3 
63.4 
67.4 
58.2 
68.3 
SW var 
f A.M. Cloudy— High wind— also throughout the night. P.M. Fine— 
1 It. clouds— high wind. Ev. Overcast— slight rain— high wind. 
S 20 
29.754 
29.748 
67.2 
29.788 
29.784 
68.2 
59 
06.7 
63.3 
66.7 
60.0 
67.7 
S 
5 A.M. Overcast — brisk wind. P.M. Dark heavy clouds— light rain 
l —high wind. Evening, Cloudy. 
©21 
29.912 
29.906 
66.9 
29.942 
29.938 
68.5 
58 
07.2 
63.5 
68.7 
56.6 
72.0 
S 
Cloudy— light wind throughout the dav. Ev. Fine — light clouds. 
M22 
30.100 
30.092 
68.6 
30.096 
30.088 
67.2 
59 
07.1 
64.4 
68.3 
56.9 
72.8 
SSE 
f A.M. Cloudy— light wind— rain early. P.M. Fine— light clouds 
X and breeze. Evening, Overcast — heavy rain. 
T23 
30.076 
30.070 
64.9 
30.038 
30.032 
67.6 
60 
04.8 
63.3 
67.5 
58.0 
69.8 
.283 
S 
/ Overcast— high wind, with occasional rain throughout the dav. 
X Evening, The like. 
f A.M. Overcast — brisk wind. P.M. Lightly cloudy — light rain and 
1 wind. Evening, Fine and clear. 
A.M. Overcast — It. wind. P.M. Fine— It. clouds & wind. Ev. The like. 
W24 
29.818 
29.810 
65.7 
29.790 
29.786 
68.0 
60 
05.2 
63.8 
67.2 
61.2 
69.3 
.186 
S 
T25 
29.800 
29.794 
64.8 
29.806 
29.800 
67.7 
60 
05.5 
63.0 
69.8 
58.8 
69.3 
S 
@ F 26 
29.794 
29.788 
65.3 
29.680 
29.672 
65.3 
58 
06.5 
62.3 
60.2 
55.6 
70.3 
s 
f A.M. Cloudy— light rain and wind. P.M. Overcast— light steady 
S 27 
29.620 
29.614 
69.3 
29.658 
29.652 
65.9 
59 
06.6 
61.2 
61.7 
53.5 
67.0 
.658 
s 
( A.M. Cloudy— light brisk wind. P.M. Overcast— thunder and light- 
©28 
29.854 
29.850 
62.2 
29.912 
29.906 
64.0 
57 
04.5 
57.7 
64.0 
55.0 
66.3 
.383 
WNW 
X niug, with rain. Evening, Overcast — heavy rain. 
Overcast — lightbreeze throughout the day. Evening, Cloudy. 
M29 
30.068 
30.062 
64.2 
30.008 
30.000 
64.3 
56 
06.9 
62.3 
61.8 
53.2 
65.6 
s 
f A.M. Cloudy— light breeze. P.M. Overcast— light steady rain. 
X Evening, Overcast— heavy rain— high wind. 
T30 
29.804 
29.798 
61.8 
29.768 
29.762 
62,9 
56 
04.6 
57.7 
61.8 
54.9 
65.8 
.322 
NW 
CA.M. Cloudy — light wind— high wind during the night. P.M. 
X Overcast— very light rain. Evening, Light steady rain. 
W31 
29.370 
29.366 
61.6 
29.408 
29.400 
62.2 
58 
03.5 
57.7 
57.7 
56.0 
59.6 
.261 
S 
Overcast— showery nearly the whole day, with high wind. Ev. Ovct. 
Sum. 
( 9 A.M. 3 P.M. 
MEAN . 
29.940 
29.934 
68.2 
29.920 
29.914 
67.0 
58.0 
06.7 
63.1 
67.3 
56.7 
69.9 
2.577 
Mean Barometer corrected 1 F. 29.838 . . 29.821 
( C. 29.8.31 .. 29.814 
T 1 
29.974 
29.970 
68.6 
30.036 
30.030 
63.7 
57 
07.1 
60.6 
68.4 
54.4 
66.4 
.213 
W 
A.M. Cloudy — It. breeze. P.M. Fine — it. clouds. Ev. Fine Sc clear. 
F 2 
30.120 
30.116 
80.0 
30.074 
30.066 
66.5 
59 
08.2 
65.3 
73.8 
56.2 
76.2 
S 
Fine & cloudless— light breeze throughout the day. Ev. Light fog. 
S 3 
30.096 
30.092 
74.2 
30.104 
30.098 
69.5 
61 
08.8 
68.8 
78.3 
59.9 
74.4 
NNW 
Fine and cloudless throughout the day. Evening, Fine — light clouds. 
© 4 
30.222 
30.216 
66.6 
30.246 
30.242 
70.0 
61 
05.6 
62.0 
70.4 
61.3 
78.6 
NNW 
f Fine — light clouds and breeze throughout the day. Evening, Fine 
M 5 
30.348 
30.344 
74.4 
30.300 
30.294 
68.4 
59 
08-8 
61.8 
68.8 
52.6 
71.0 
NW 
y Fine and cloudless — lightbreeze throughout the day. Evening, 
T 6 
30.228 
30.222 
77.0 
30.156 
30.148 
69.8 
60 
08.3 
65.5 
70.4 
56.4 
71.3 
S 
A.M. Fine— It. clouds & breeze. P.M. Cloudy. Ev. Fine & clear. 
W 7 
29.844 
29.838 
65.6 
29.766 
29.760 
66.8 
59 
06.9 
63.4 
63.8 
60.0 
71.7 
ssw 
f A.M. Cloudy — It. breeze. P.M. Cloudy— occasional rain. Ev.Over- 
T 8 
29.998 
29.992 
74.4 
30.050 
30.044 
68.3 
60 
07.5 
61.2 
65.7 
53.7 
71.2 
.288 
NW 
Fine— light clouds and breeze throughout the day. Ev. Fine & clear. 
OF 9 
30.188 
30.182 
77.6 
30.136 
30.130 
68.3 
59 
07.1 
64.0 
69.3 
53.9 
76.3 
SSW 
Fine— light clouds and breeze throughout the day. Evening, Cloudy. 
S 10 
30.152 
30.146 
76.9 
30.082 
30.076 
68.3 
60 
06.0 
64.6 
69.7 
56.2 
71.3 
SW 
f A.M. Cloudy — light breeze. P.M. Fine — light clouds. Evening, 
©11 
30.060 
30.052 
71.0 
30.104 
30.098 
66.9 
59 
08.2 
63.7 
65.8 
55.9 
70.2 
SW var. 
fA.M. Cloudy — brisk wind. P.M. Fine— light clouds and wind — 
M12 
30.314 
30.306 
68.7 
30.280 
30.276 
61.8 
57 
06.6 
59.3 
63.6 
53.2 
67.0 
NW 
Cloudy— light breeze throughout the day. Evening, The same. 
m T 13 
30.208 
30.200 
66.8 
30.144 
30.136 
64.6 
50 
07.4 
58.3 
64.8 
53.3 
62.6 
NW 
A.M. Fine— It. clouds & breeze. P.M. Cloudy— It. wind. Ev. The same. 
3 W14 
30.014 
30.006 
70.2 
29.930 
29.926 
66.7 
58 
07.8 
63.8 
66.8 
57.3 
70.0 
SE 
Cloudy— light breeze throughout the day. Evening, The same. 
§ T 15 
29.696 
29.690 
62.7 
29.626 
29.622 
64.2 
55 
05.7 
61.0 
63.8 
57.8 
68.7 
E 
fA.M. Light fog and wind. P.M. Cloudy— light showers. Evening, 
I Fine and clear. 
F 16 
29.654 
29.650 
71.2 
29.634 
29.630 
67.0 
59 
06.3 
64.3 
68.7 
56.9 
65.0 
.019 
S 
f A.M. Fine— lightclouds and breeze, with light showers. P.M. Fine 
1 — light cloudsand wind. Evening, Cloudy. 
S 17 
29.670 
29.666 
64.5 
29.712 
29.704 
66.2 
59 
06.0 
61.8 
65.3 
56.4 
70.0 
.686 
S 
fAi£p. t very heavy rain, which continued an hour and a half. P.M. 
©18 
30.030 
30.024 
70.5 
30.040 
30.0321 
65.3 
57 
06.2 
69.3 
64.3 
52.9 
67.8 
N 
1 Cloudy— light breeze. Evening, Overcast. 
A.M. Fine— It. elds. Sc breeze. P.M. Thick haze. Ev.Ovct.— heavy rain. 
Ml 9 
29.946 
29.940 
70.4 
29.990 
29.982 
64.3 
58 
05.7 
60.2 
56.5 
55.8 
66.0 
.347 
WNW 
f Cloudy— light wind, with showers nearly the whole of the day. 
T 20 
30.080 
30.072 
60.2 
30.110 
30.102 
62.3 
51 
03.8 
52.5 
55.4 
49.4 
59.4 
.133 
W 
f Overcast— light wind, with showers nearly the whole of the day. 
X Evening, Fine and clear. 
W21 
30.244 
30.240 
69.8 
30.206 
30.198 
60.6 
50 
06.4 
54.2 
59.2 
45.4 
56.3 
.025 
NW 
’ine— It. clouds & wind throughout the day. Ev. Cloudy— light fog. 
T 22 
30.230 
30.222 
62.4 
30.204 
30.200 
61.0 
49 
06.6 
57.7 
64.8 
49.7 
60.2 
S 
r ine — light clouds throughout the day. Evening, Fine and clear. 
F 23 
30.266 
30.258 
60.0 
30.246 
30.238 
62.8 
56 
05.5 
62.4 
70.3 
57.2 
65.3 
s 
\.M. Light fog Sc wind. P.M. Fine— It. clouds. Ev. Fine and clear. 
• s 24 
30.140 
30.132 
63.8 
30.062 
30.056 
65.4 
59 
04.9 
62.5 
69.5 
57.6 
70.8 
S 
\.M. Lightly overcast— It. wind. P.M.Cloudy— It. wind. Ev.The same. 
G 25 
30.026 
30.018 
64.2 
29.972 
29.968 
66.5 
59 
05.4 
62.3 
70.6 
60.0 
70.5 
w 
\.M. LiglHlv overcast. P.M. Fine— lightclouds. Ev. Fine & clear. 
M 26 
29.966 
29.960 
70.3 
29.912 
29.904 
67.3 
59 
07.8 
65.3 
68.7 
54.8 
71.5 
w 
V.M. Fine— It. clouds & wind. P.M. Cloudy— It. wind. Ev.The 6ame. 
T 27 
29.818 
29.812 
65.3 
29.826 
29.820 
66.0 
58 
05.2 
68.8 
64.7 
55.8 
70.3 
.066 
NW 
[ A.M. Cloudy— light wind. P.M. Fine— light cloud9 and wind. 
Evening, Cloudy — light rain. 
W28 
30.072 
30.064 
61.2 
30.048 
30.042 
63.3 
54 
04.6 
55.4 
65.3 
50.9 
65.0 
SW 
\.M. Overcast— It. wind. P.M. Fine-Mt. clouds Sc wind. Ev. Cloudy. 
T 29 
29.942 
29.936 
62.3 
29.892 
29.884 
65.3 
60 
04.1 
62.3 
67.7 
54.9 
65.3 
.133 
S 
\.M. Ovct.— brisk wind. P.M. Fine— It. elds.— brisk wind. Ev.Cldy. 
F 30 
29.846 
29.840 63.4 
29.810 
29.806 
66.0 
59 
04.4 
61.7 
66.5 
59.9 
68.3 
SE 
Evening, The same. 
S 31 
29.530 
29.526 1 
63.0 
29.382 
29.378 
63.5 
61 
03.3 
61.8 
59.3 
57.0 
66.8 
.058 
SSW 
Overcast— brisk wind, with occasional showers throughout the day. 
Evening, The same. 
Sum. 
( 9 A.M. 3 P.M. 
MEAN . 
30.030 
30.024 
68.3 
30.003 
29.996 
65.7 
57.5 
06.3 
62.1 
66.5 
55.4 
68.6 
.968 
Mean Barometer corrected < F. 29.926 .. 29.906 
1 
/C. 29.919 .. 29.899 
