METEOROLOGICAL JOURNAL FOR MARCH AND APRIL, 1843. 
9 o’clock, A. M. 
3 o’clock, P.M. 
u 
-o 
P S 
ri -Q 
External Thermometers. 
Jj-g 
43 
1843. 
Barometer 
uncorrected. 
Att. 
Barometer 
uncorrected. 
Att. 
•Si 
O < V 
& 
Q< 
■s® 1 
Fahrenheit. 
Self-registerin 
C'O- 
c'® - 
o.5< 
REMARKS. 
Flint 
Glass. 
Crown 
Glass. 
Ther 
Flint 
Glass. 
Crown 
Glass. 
Ther 
P 
9A.M 
3P.M 
Lowes 
Highes 
■1* 
CC 
S 
3 
OW 1 
29.698 
29.690 
40.0 
29.758 
29.750 
41.2 
34 
02.3 
35.8 
37.7 
34.2 
42.2 
NNW 
fA.M. Fine— light clouds and wind. P.M. Cloudy — light snow. 
1 Evening, Fine and frosty— starlight. 
( Fine— light clouds, wind, and frost throughout the day. Evening, 
t Fine and frosty — starlight. 
Cloudy— light wind throughout the day. Ev. Fine and starlight. 
T 2 
29.976 
29.968 
37.5 
29.986 
29.978 
39.0 
31 
02.2 
33.7 
39.3 
31.2 
39.4 
NW 
F 3 
30.092 
30.084 
37.3 
30.096 
30.088 
38.6 
31 
01.4 
32.3 
38.8 
31.3 
40.2 
N 
S 4 
30.336 
30.328 
37.8 
30.372 
30.364 
39.5 
32 
01.9 
35.7 
40.8 
32.2 
40.0 
NW 
Fine — light clouds & wind throughout the day. Ev. Fine & starlight. 
© 5 
30.416 
30.408 
37.6 
30.368 
30.362 
39.0 
30 
02.1 
34.2 
41.8 
30.5 
41.8 
N 
( A.M. Fine — light clouds and wind, with frost. P.M. Lightly over- 
\ cast. Evening, Overcast. 
M 6 
30.286 
30.278 
38.4 
30.252 
30.246 
40.4 
32 
02.7 
39.2 
43.2 
34.0 
43.0 
S 
Cloudy— light wind throughout the day. Ev. The same, with frost. 
T 7 
30.218 
30.210 
38.4 
30.192 
30.184 
40.2 
30 
02.8 
35.7 
41.8 
32.0 
44.0 
s 
Fine— It. clouds & wind throughout the day. Ev. Fine & starlight. 
W 8 
30.292 
30.284 
38.7 
30.326 
30.318 
40.6 
34 
02.7 
37.7 
42.4 
33.0 
47.8 
N 
C A.M. Fine— nearly cloudless — light wind. P.M. Fine— It. clouds. 
1 Evening, Lightly cloudy. 
T 9 
30.396 
29.390 
38.0 
30.354 
30.346 
38.7 
31 
00.5 
34.8 
38.2 
33.3 
43.8 
E 
Cloudy — It. wind throughout the day. Evening, Moonlight — It. elds. 
F10 
30.186 
30.178 
40.0 
30.064 
30.056 
41.4 
33 
02.7 
39.3 
42.8 
34.8 
40.4 
SSE 
Cloudy — brisk wind throughout the day. Ev. Fine and starlight. 
Sll 
30.192 
30.186 
41.2 
30.160 
30.152 
42.8 
34 
04.2 
40.3 
44.7 
37.6 
44.0 
S 
Cloudy— light wind throughout the day. Evening, The same. 
a ©i2 
gM13 
29.952 
29.744 
29.944 
29.738 
42.7 
44.6 
29.800 
29.686 
29.796 
29.678 
45.0 
47.4 
39 
39 
01.9 
03.1 
43.7 
42.7 
48.9 
50.8 
40.0 
39.0 
45.6 
51.0 
S 
w 
Overcast — light wind throughout the day. Evening, Cloudy. 
f A.M. Fine— light clouds and wind. P.M. Cloudy— light wind. 
1 Evening, Overcast— light rain— high wind. 
5 T 14 
29.488 
29.482 
49.0 
29.562 
29.554 
50.0 
44 
03.4 
50.5 
54.3 
42.7 
51.8 
.069 
w 
f Cloudy— light wind throughout the day — (high wind throughout 
X the night). Evening, Overcast — very slight rain. 
* W15 
29.790 
29.784 
49.5 
29.916 
29.908 
50.3 
44 
02.0 
46.3 
50.7 
46.3 
55.5 
N 
1 Overcast— deposition— light wind throughout the day. Evening, 
) Overcast — very slight rain. 
®T16 
30.040 
30.032 
50.0 
30.022 
30.014 
51.2 
45 
02.2 
50.5 
52.7 
46.2 
51.8 
.019 
sw 
Overcast— It. wind throughout the day. Ev. Moonlight— It. clouds. 
F 17 
29.920 
29.912 
51.0 
29.876 
29.868 
52.6 
45 
02.2 
46.8 
57.7 
43.6 
54.2 
s 
f A.M. Fine— light clouds and wind. P.M. Fine — nearly cloudless. 
( Evening, Moonlight— light clouds. 
S 18 
29.898 
29.892 
51.0 
29.884 
29.878 
52.6 
45 
02.1 
45.4 
59.8 
43.4 
59.0 
s 
A.M. Cloudy— It. fog &wind. P.M. Fine& cloudless. Ev. Thick fog. 
©19 
29.920 
29.912 
50.0 
29.890 
29.886 
51.0 
45 
01.2 
43.3 
45.9 
41.3 
61.0 
NE 
Overcast— light wind throughout the day. Evening, Foggy. 
M20 
29.588 
29.580 
49.3 
29.594 
29.588 
52.8 
45 
02.2 
48.3 
56.0 
42.7 
50.8 
NE 
Cloudy— light wind throughout the day. Ev. The same— brisk wind. 
j A.M. Fine— light clouds and wind— high wind throughout the night. 
T21 
29.512 
29.504 
57.0 
29.454 
29.448 
55.4 
49 
04.6 
53.8 
56.8 
48.0 
58.7 
E 
X P.M. Cloudy — brisk wind. Evening, The same, 
f A.M. Cloudy— light wind& rain— high wind with heavy rain early. 
W22 
29.440 
29.432 
55.0 
29.462 
29.454 
56.4 
52 
03.6 
51.8 
56.3 
50.4 
59.0 
.163 
E 
X P.M. Cloudy — light wind. Evening, Overcast— brisk wind. 
T23 
29.485 
29.478 
57.7 
29.570 
29.562 
56.0 
51 
04.2 
54.3 
56.3 
51.0 
59.3 
SSE 
Cloudy — brisk wind throughout the day. Evening, Fine & starlight. 
( A.M. Fine— light clouds & wind — slight rain early. P.M. Cloudy 
F24 
29.604 
29.596 
56.8 
29.660 
29.652 
57.2 
51 
03.2 
53.7 
59.7 
46.8 
57.6 
E 
1 —Light wind. Evening, Fine and starlight. 
( Fine— light clouds, with brisk wind throughout the day. Evening, 
S 25 
29.784 
29.776 
56.3 
29.740 
29.732 
52.8 
44 
04.5 
47.7 
49.3 
45.0 
60.6 
NE 
X Fine and starlight — brisk wind. ! 
©26 
29.798 
29.790 
53.2 
29.744 
29.738 
49.0 
37 
05.9 
45.5 
47.5 
38.7 
53.4 
NE 
C Fine— nearly cloudless— high wind throughout the day. Evening, 
} Fine and starlight. 
M27 
29.836 
29.828 
43.8 
29.724 
29.716 
45.0 
35 
03.5 
40.0 
41.3 
37.3 
51.8 
ENE 
Cloudy — brisk wind throughout the day. Ev. Overcast— brisk wind. 
( A.M. Cloudy — light brisk wind. P.M. Fine— light clouds and wind. 
T 28 
29.760 
29.752 
44.8 
29.776 
29.768 
46.6 
38 
03.3 
43.5 
47.3 
39.3 
44.6 
ENE 
t Evening, Fine and starlight. 
W29 
29.966 
29.958 
46.0 
29.984 
29.976 
45.5 
36 
04.3 
42.3 
50.7 
33.6 
49.0 
N 
Fine — it. clouds & wind throughout the day. Ev. Fine & starlight. 
c Cloudy— light wind throughout the day. Evening, Overcast— 
OT30 
29.866 
29.858 
46.0 
29.756 
29.748 
48.0 
39 
05.1 
48.8 
52.8 
38.5 
52.0 
S 
X light rain— high wind. 
( Cloudy— light wind, with occasional light showers throughout the 
1 day. Evening, Overcast— light rain. 
F31 
29.480 
29.472 
51.6 
29.398 
29.392 
52.3 
48 
04.0 
54.8 
52.3 
48.6 
56.2 
.036 
S 
Sum. 
( 9 A.M. 3 P.M. 
MEAN. 
29.901 
29.894 
46.1 
29.885 
29.877 
47.0 
39 
03.0 
43.6 
48.3 
39.6 
50.0 
.287 
Mean Barometer corrected < F. 29.858 . . 29.839 
\ C. 29 850 . . 29.830 
S 1 
29.540 
29.534 
51.7 
29.518 
29.510 
54.6 
48 
02.7 
51.3 
57.3 
49.6 
58.0 
.102 
S 
i A.M. Overcast— light rain— high wind. P.M. Cloudy— high wind, 
\ with showers. Evening, Overcast — high wind. j 
© 2 
29.510 
29.504 
54.0 
29.604 
29.600 
56.0 
50 
03.6 
54.7 
59.5 
51.3 
59.0 
.141 
s 
/A.M. Cloudy — high wind— high wind throughout the night. P.M. 
M 3 
29.840 
29.832 
54.3 
29.800 
29.794 
57.0 
50 
04.5 
56.3 
59.3 
50.8 
60.2 
.052 
SW var. 
Cloudy— light wind throughout the day. Evening, The same. 
T 4 
29.396 
29.390 
54.0 
29.384 
29.378 
55.5 
50 
01.4 
51.3 
51.3 
49.0 
61.3 
.263 
S 
fA.M. Cloudy— light wind— heavy rain early. P.M. Overcast — light 
\ rain and wind. Evening, The same. i 
W 5 
29.764 
29.758 
61.0 
29.840 
29.834 
54.7 
47 
04.6 
49.8 
54.7 
43.7 
56.3 
.283 
SW 
(A.M. Cloudy— brisk wind, hail, and rain — high wind during the 
\ night. P.M. Fine— It. clouds & wind. Ev. Cloudy— high wind. 
T 6 
29.870 
29.862 
52.5 
29.750 
29.744 
53.8 
47 
03.7 
51.3 
55.4 
45.0 
57.2 
.058 
S 
fA.M. Ovct.— sit. rain— high wind— ditto during night. P.M. Ovct. 
F 7 
29.586 
29.578 
54.9 
29.530 
29.522 
57.0 
52 
02.7 
53.6 
60.0 
50.2 
56.8 
S 
A.M. Overcast— slight rain & wind— high wind throughout the night. 
S 8 
29.612 
29.604 
64.2 
29.596 
29.588 
57.0 
48 
05.5 
51.0 
56.8 
47.6 
61.7 
.450 
S 
(A.M. Fine— It. clouds— brisk wind. Heavy gale, with heavy rain in 
1 the night. P.M. Fine— It. elds.— brisk wind. Ev. Fine & starlight. 
© 9 
29.636 
29.628 
52.7 
29.634 
29.628 
52.0 
47 
02.5 
44.9 
46.8 
44.8 
58.6 
NE 
Lightly overcast — light wind throughout the day. Ev. The same. 
M10 
29.938 
29.930 
49.7 
29.930 
29.922 
49.4 
40 
04.2 
41.7 
43.0 
36.4 
48.3 
NW 
j A.M. Fine— light clouds and wind. P.M. Cloudy— light snow— 
( rain and wind. Ev. Fine and starlight— sharp frost. 
d Til 
30.010 
30.002 
49.6 
30.000 
29.992 
47.7 
32 
04.2 
39.5 
44.6 
35.2 
48.0 
.055 
WNW 
( Fine— light clouds and wind throughout the day. Evening, Fine 
( and moonlight — light frost. 
g W12 
29.970 
29.962 
49.3 
29.914 
29.906 
46.3 
35 
03.6 
39.3 
43.7 
33.0 
45.7 
NW 
/A.M. Fine— It. clouds & wind. P.M. Cloudy— It. wind. Ev. Moon- 
1 light— light clouds. [slight snow. Ev. Light rain. 
T13 
29.830 
29.822 
46.2 
29.890 
29.882 
45.6 
34 
03.0 
38.3 
41.5 
35.0 
45.0 
.066 
NW 
A.M. Fine — It. elds. & wind — snow during the night. P.M. Cloudy— 
»F14 
29.914 
29.906 
45.0 
29.904 
29.896 
46.3 
35 
04.5 
44.3 
52.2 
34.0 
46.0 
W 
/ Cloudy — brisk wind throughout the day, with occasional slight rain. 
1 Evening, Light fog. 
S 15 
30.138 
30.130 
47.3 
30.120 
30.112 
49.6 
43 
03.1 
51.0 
55.7 
44.0 
53.3 
W 
A.M. Light fog & wind. P.M. Cloudy — light wind. Ev. The same. 
©16 
29.968 
29.960 
55.6 
29.858 
29.852 
53.5 
45 
05.3 
54.0 
58.6 
49.2 
57.6 
E 
fine — light clouds and wind throughout the day. Ev. Overcast. 
M 17 
29.964 
29.956 
58.0 
29.956 
29.948 
55.7 
48 
04.0 
52.0 
62.3 
45.7 
60.3 
N 
Ditto ditto. Ev. Fine and starlight. 
T 18 
30.150 
30.144 
56.0 
30.098 
30.090 
55.2 
42 
05.5 
52.7 
60.7 
45.8 
64.0 
NE 
Ditto ditto. Ditto. 
W19 
29.992 
29.984 
51.6 
29.876 
29.868 
54.2 
45 
01.8 
45.7 
58.8 
41.8 
62.2 
E 
/A.M. Light fog and wind. P.M. Fine — light clouds and wind. 
T 20 
29.736 
29.728 
57.7 
29.744 
29.740 
57.0 
49 
05.2 
57.3 
65.0 
45.8 
60.4 
S 
Fine— light clouds & wind throughout the day. Ev. Fine & starlight. 
F 21 
29.902 
29.896 
58.2 
29.888 
29.880 
58.7 
51 
04.0 
55.7 
61.7 
49.3 
67.3 
W 
Ditto ditto. Ev. Cloudy — light rain. 
S 22 
29.876 
29.868 
56.7 
29.954 
29.946 
58.2 
52 
04.0 
54.3 
54.5 
51.0 
65.6 
.050 
SSW 
(A.M. Cloudy — hail, rain, and wind. P.M. Cloudy — light clouds 
f and wind. Evening, Fine and starlight. 
(A.M. Cloudy — light wind. P.M. Fine — light clouds and wind. 
©23 
30.104 
30.096 
58.5 
30.068 
30.060 
56.7 
39 
05.7 
50.3 
57.3 
42.3 
63.7 
.041 
s 
M 24 
30.060 
30.052 
60.7 
30.022 
30.014 
55.7 
45 
04.6 
50.7 
55.7 
42.3 
58.6 
E 
(A.M. Fine— light clouds & wind. P.M. Cloudy— slight shower. 
T 25 
29.774 
29.766 
50.9 
29.580 
29.572 
52.2 
44 
03.5 
47.7 
52.5 
42.0 
57.0 
SSE 
1 Evening, Fine & starlight. [rain & wind. Ev. Fine & starlight. 
\.M. Ovct. — It. wind, with occasional showers. P.M. Cloudy — hail. 
W26 
29.670 
29.662 
49.0 
29.700 
29.692 
51.4 
41 
02.4 
41.3 
52.7 
38.7 
55.0 
.313 
W 
fA.M. Overcast— light rain, hail, and wind. P.M. Cloudy — light 
T 27 
29.856 
29.848 
52.9 
29.898 
29.890 
51.5 
41 
03.8 
45.0 
52.5 
40.6 
54.0 
.080 
NW 
Dvercast— light wind throughout the day. Ev. Fine and starlight. 
F 28 
29.800 
29.794 
50.9 
29.698 
29.690 
51.8 
43 
04.3 
49.3 
51.4 
43.2 
54.6 
E 
V.M. Cloudy — It. wind. P.M. Overcast — It. rain & wind. Ev. Same. 
' 
3 S 29 
29.712 
29.704 
51.2 
29.704 
29.698 
53.0 
40 
04.6 
49.8 
55.3 
45.4 
54.6 
.033 
W 
fA.M. Overcast— light wind. P.M. Cloudy— light wind. Evening, 
©30 
29.866 
29.860 
69.0 
29.934 
29.928 
57.2 
51 
06.1 
58.8 
62.5 
48.0 
66.0 
NE 
T ine — It. clouds— It. brisk wind throughout the day. Ev. Fine & starlt. 
I 
Sum 
( 9 A.M. 3 P.M. 
MEAN . 
29.833 
29.825 
54.1 
29.813 
29.806 
53.5 
44 
03.9 
49.4 
54.8 
44.0 
57.9 
.9S7 
Mean Barometer corrected < F. 29.769 .. 29.751 
1 
1 
( C. 29.760 .. 29.743 
