METEOROLOGICAL JOURNAL FOR MARCH AND APRIL, 1841 . 
9 o’clock, A. M. 
3 o’clock, P.M. 
•a 
C £ 
External Thermometers. 
ij-2 
o> 
£ 
1841. 
Barometer 
uncorrected. 
Att. 
Barometer 
uncorrected. 
Att. 
I* 
— >>s 
Fahrenheit. 
Self-re 
gisterin? 
erf 
O 
o.S<3 
REMARKS. 
Flint 
Crown 
Ther 
Ther 
9 A.M 
3P.M. 
Lowes 
Highes 
- S 35 
|S==” 
Glass. 
Glass. 
Glass. 
Glass. 
Q< 
— 5^ 
S H 
« 
3 
M 1 
29.614 
29.606 
41.9 
29.644 
29.636 
42.6 
36 
02.3 
39.3 
41.7 
36.9 
42.6 
SB 
Cloudy — light wind throughout the dav. Ev. Overcast — light rain. 
T 2 
29.6S8 
29.680 
41.9 
29.542 
29.536 
43.6 
37 
02.5 
37.4 
42.4 
35.0 
43.2 
.025 
sw 
Overcast— It. rain— brisk wind throughout the dav. Ev. The same. 
W 3 
29.324 
29.318 
43.7 
29.428 
29.422 
44.8 
39 
02.2 
42.4 
47.3 
37.3 
46.7 
.283 
NW 
[ A.M. Fine— light clouds and wind. P.M. Cloudy, with occasional 
T 4 
29.912 
29.904 
42.3 
29.874 
29.868 
43.8 
36 
02.7 
36.8 
44.7 
35.2 
48.3 
NW 
f Fine— light clouds and” wind throughout the day. Evening, Over- 
F 5 
29.S76 
29.870 
44.9 
29.616 
29.610 
46.6 
40 
02.4 
42.0 
45.3 
36.2 
45.4 
.083 
s 
1 cast— light rain. h 
f A.M. Fine— light clouds and wind. P.M. Overcast— light rain — 
S 6 
29.764 
29.758 
45.7 
29.900 
29.896 
47.0 
41 
03.4 
43.2 
50.4 
40.5 
50.3 
.158 
NW 
L high wind. Evening, I he same. 
Fine — light clouds and wind throughout tiie day. Ev. Cloudy. 
O© 7 
30.080 
30.072 
48.7 
30.140 
30.136 
50.2 
43 
03.0 
51.7 
57.8 
42.6 
52.5 
w 
Fine — It. clouds Sc wind throughout the day. Ev. Fine & moonlight. 
M 8 
30.414 
30.406 
50.0 
30.406 
30.400 
52.7 
45 
01.9 
50.5 
58.8 
49.6 
59.2 
sw 
f A.M. Light fog, with very slight rain. P.M. Fine— light cloud.. 
1 Evening, Fine and moonlight. 
A.M. Light fog. P.M. Fine— light clouds. Ev. Fine and moonlight. 
T 9 
30.444 
30.438 
51.0 
30.418 
30.410 
52.4 
46 
01.7 
4-4.5 
55.6 
43.4 
60.3 
ssw 
W10 
30.490 
30.484 
50.6 
30.454 
30.448 
52.3 
45 
02.5 
46.7 
57.6 
43.3 
56.5 
s 
A.M. Light fog. P.M. Cloudy— light wind. Ev. Fine& moonlight. 
Til 
30.512 
30.504 
49.4 
30.450 
30.442 
51.3 
44 
02.5 
45.2 
5S.3 
40.0 
58.7 
s 
A.M. Light fog. P.M. Fine & cloudless. Ev. Fine and moonlight. 
F 12 
30.400 
30.394 
51.2 
30.346 
30.338 
52.9 
46 
02.2 
46.6 
59.7 
42.2 
59.3 
E 
/A.M. Light fog. P.M. Fine and cloudless. Evening, Fine and 
S 13 
a ©14 
30.398 
30.388 
30.392 
30.380 
51.9 
47.7 
30.390 
30.296 
30.382 
30.290 
53.0 
50.0 
47 
45 
02.5 
01.3 
46.6 
40.2 
55.3 
52.4 
44.6 
37.7 
61.0 
56.7 
N 
E 
/A.M. Fine — light clouds and wind. P.M. Fine and cloudless. Ev. 
1 Overcast— light fog. 
A.M. Overcast — It. fog - . P.M. Fine — It. clouds. F.v. Fine & starlight. 
§ Ml5 
30.176 
30.170 
48.5 
30.098 
30.092 
52.0 
40 
02.0 
42.8 
59.7 
39.6 
53.7 
NE 
A.M. Light fog. P.M. Fine & cloudless. Ev. Fine and starlight. 
5 T 16 
29.942 
29.936 
50.6 
29.818 
29.810 
52.7 
47 
03.9 
49.7 
60.2 
41.6 
60.6 
S 
A.M. Fine — It. fog. P.M. Fine & cloudless. Ev. Fine & starlight. 
W17 
29.630 
29.624 
52.2 
29.604 
29.598 
54.0 
49 
02.9 
51.3 
54.7 
49.2 
61.7 
s 
| A.M. Overcast— slight rain and wind. P.M. Fine— light clouds and 
L wind. Evening, Fine and starlight. 
T 18 
29.444 
29.438 
51.6 
29.512 
29.506 
53.8 
48 
03.5 
51.7 
53.0 
46.8 
56.7 
E var. 
S A.M. Overcast— high wind— slight rain early. P.M. Cloudy— hi<rii 
Fl9 
29.628 
29.622 
51.0 
29.636 
29.630 
52.5 
48 
04.1 
49.7 
51.7 
44.2 
56.0 
SSWvar 
X A.M. Cloudy— high wiud.sajne throughout the night. P.M. Fine— 
S 20 
30.650 
29.644 
53.0 
29.640 
29.632 
51.7 
46 
04.6 
50.3 
47.7 
44,3 
54.0 
.022 
E 
A.M. Fine— It. clouds— brisk wind. P.M. Ov< t.— It. rain— brisk wind. 
©21 
29.672 
29.666 
53.2 
29.628 
29.622 
52.5 
46 
03.5 
49.5 
52.5 
43.6 
56.4 
.133 
S 
fA.M. line— light clouds and wind. P.M. Cloudy— brisk wind. 
L Evening, Overcast— brisk wind. 
M22 
©T 23 
29.378 
29.S78 
29.372 
29.870 
52.2 
54.3 
29.456 
30.030 
29.448 
30.022 
45.5 
53.9 
50 
48 
02.0 
03.5 
51.9 
49.3 
55.5 
56.5 
48.7 
43.2 
54,3 
56.6 
.036 
.025 
S var. 
SSW 
f A.M. Ovct.— very heavy gale, also throughout the night. P.M. Fine 
X —It. elds.— b. wind. Ev. Fine & s.ai It. p.m. hail &>ain— rainbow. 
fA.M. Cloudy — brisk wind. P.M. Fine — light clouds Sc wind. Ev. 
W24 
30.270 
30.262 
52.0 
29.258 
30.250 
53.6 
46 
03.5 
51.4 
54.3 
46.6 
58.3 
SE 
Cloudy— light wind throughout the day. Evening, Fine& starlight. 
T 25 
30.160 
30.152 
54.2 
30.044 
30.036 
53.9 
45 
03.5 
51.8 
57.3 
44.3 
55.7 
- 
SSE 
Fine— It- clouds & haze throughout the day. Ev. Fine and starlight. 
F 26 
29.728 
29.722 
55.0 
29.596 
29.590 
56.4 
49 
04.8 
55.5 
62.3 
47.0 
59.0 
S 
f Cloudy — light wind throughout the day. Ev. Early part cloudv— 
1 slight rain; afterwards fine and stai light. 
S 27 
29.778 
29.772 
55.6 
29.792 
29.784 
55.2 
48 
02.6 
51.5 
54.6 
45.0 
64,2 
.036 
s 
fA.M. Fine — it. elds. P.M. Fine — It. elds, with occasional showers. 
©28 
29.970 
29.966 
57.9 
29.930 
29.924 
54.9 
44 
02.7 
45.0 
54.5 
41.2 
59.7 
.105 
ssw 
\ Ev. J to 6, shower, with rainbow — after, fine and starlight. 
A.M. Fine — It. cloudsand wind. P.M. Overcast, asalsothe evening. 
M29 
29.938 
29.932 
52.3 
29.S74 
29.866 
55.0 
48 
03.0 
51.2 
54.3 
44.8 
56.6 
s 
Cloudy — It. wind throughout the dav. Evening, Overcast— It. rain, 
f A.M. Fine — light clouds and wind. P.M. Cloudy — light wind. 
X Evening, Overcast— very high wind. 
T30 
29.912 
29.904 
55.9 
29.950 
29.944 
54.4 
48 
03.3 
48.2 
53.8 
43.0 
57.0 
.072 
W ' 
W31 
29.678 
29.672 
57.7 
29.594 
29.588 
53.7 
46 
04.1 
49.0 
52.7 
44.7 
55.0 
.069 
S var. 
fA.M. High wind, and rain early, after which fine — light clouds. 
X P.M. Cloudy— high wind. Ev. Overcast— light rain. 
Sum. 
( 9 A.M. 3 P.M. 
MEAN . 
29.940 
29.933 
50.6 
29.915 
29. 90S 
51.3 
45 
02.9 
47.1 
53.6 
42.7 
55.4 
1.047 
Mean Barometer corrected 4 F. 29.fl.t5 .. 29.359 
lc. 29.377 .. 29.850 
T 1 
29.642 
29.636 
50.6 
29.654 
29.648 
51.7 
45 
03.2 
46.3 
50.7 
43.7 
54.7 
.061 
W 
Overcast— light wind throughout the day. Evening, Light rain. 
F 2 
29.662 
29.656 
58.2 
29.6S0 
29.674 
53.3 
46 
03.6 
47.7 
52.2 
44.6 
51.7 
.058 
NW 
Fine— It. clouds & wind throughout the day. Ev. Fine and starlight. 
S 3 
29.728 
29.720 
51.4 
29.63S 
29.630 
51.8 
44 
02.7 
45.0 
51.5 
38.2 
53.6 
SW 
A.M. Fine— It. fog. P.M. Fine— It. clouds. Ev. Fine Sc moonlight. 
© 4 
29.676 
29.670 
59.8 
29.552 
29.548 
51.6 
41 
03.0 
43.7 
52.3 
38.3 
53.6 
S 
f A.M. Fine— light clouds and wind. P.M. Overcast— brisk wind. 
X Evening, Light rain. 
M 5 
29.404 
29.398 
49.2 
29.432 
29.426 
51.9 
43 
03.3 
47.0 
51.7 
43.0 
56.0 
.102 
SE 
f A.M. Lightly overcast — light showers and wind. P.M. Fine — light 
OT 6 
29.710 
29.702 
49.9 
29.736 
29.728 
51.5 
43 
02.8 
46.4 
49.4 
43.2 
54.2 
N 
Cloudy— light wind throughout the day. Evening, Overcast— It. rain. 
W 7 
29.806 
29.798 
4S.6 
29.792 
29.786 
51.0 
40 
02.9 
43.3 
50.8 
40.3 
53.8 
.036 
E 
Cloudy — It. wind throughout the dav. Evening, Overcast — It. rain. 
T 8 
29.806 
29.800 
52.4 
29.758 
29.750 
51.4 
45 
03.5 
47.0 
50.7 
42.4 
54.0 
.033 
NW 
("Fine — light clouds, with occasional light showers throughout the 
F 9 
29.910 
29.902 
50.0 
29.884 
29.876 
51.3 
44 
03.2 
48.0 
52.3 
41.7 
52.5 
.125 
NW 
Fine— It. clouds and wind throughout the day. Ev. Fine Sc starlight. 
S 10 
30.082 
30.074 
4S.5 
30.040 
30.034 
48.4 
41 
03.7 
44.7 
45.7 
40.3 
53.7 
NW 
Cloudy — light wind throughout the day. Ev. Fine Sc starlight. 
©11 
29.954 
29.948 
46.0 
29.944 
29.938 
47.5 
38 
02.7 
40.8 
44.5 
38.6 
46.7 
N 
f Lightly overcast— light wind, with occasional showers throughout 
X the day. 5^ p.m. rainbow. Ev. Fine and starlight. 
Ml 2 
29.912 
29.904 
45. S 
29.924 
29.916 
46.6 
35 
03.0 
41.2 
44,3 
36.7 
47.2 
.025 
NNW 
f Fine— light clouds— brisk wind throughout the day. Eveuing,Over- 
L cast — very slight rain. 
f A.M. Fine — lignt clouds and wind. P.M. Cloudy— light wind. 
T13 
30.100 
30.092 
45.7 
30.118 
30.110 
4S.3 
38 
03.0 
45.3 
49.8 
37.7 
46.6 
S 
3 W14 
30.110 
30.102 
48.3 
30.034 
30.026 
50.3 
41 
02.7 
49.8 
54.8 
45.0 
53.0 
.080 
s 
X Ev. Overcast— light rain. [rain. 
Overcast— light wind throughout the day. Ev. Overcast— very slight 
5 T 15 
29.916 
29. 90S 
55.9 
29.818 
29.810 
51.6 
43 
04.0 
48.7 
47.3 
42.4 
56.7 
s 
f A.M. Fine— light clouds and wind, with occasional showers. P.M. 
1 Overcast — hail and rain. Evening, Light rain. 
Flo 
29.742 
29.736 
54.7 
29.72S 
29.722 
50.2 
41 
02.6 
45.7 
49.2 
37.7 
55.3 
.063 
ssw 
\.M. Fine— It. clouds Sc wind. P.M. Overcast— It. wind. Ev.The like. 
S 17 
29.914 
29.906 
53.2 
29.934 
29.926 
50.3 
41 
03.9 
46.4 
53.2 
42.4 
54.6 
w 
liick haze— light wind throughout the dav. F.v. Fine and starlight. 
©IS 
29.972 
29.964 
49.0 
29.942 
29.938 
51.5 
43 
03.5 
49.4 
57.5 
42.8 
54.6 
sw 
A.M. Lightly overcast— light wind. P.M. Fine— light cloudsand 
wind. Evening, Overcast. 
M 19 
29. 90S 
29.900 
54.0 
29.910 
29.902 
53.5 
42 
03.2 
48.7 
54,3 
44,8 
59.2 
.166 
NW 
Fine — light clouds and wind throughout the day — heavy rain earlv. 
Evening, Fine and starlight. 
T 20 
29.800 
29.794 
50.9 
29.690 
29.682 
52.4 
39 
03.7 
46.8 
52.0 
42.2 
56.8 
W 
•M. Light fog and wind. P.M. Overcast. Evening, The like. 
®W21 
29.852 
29.S4S 
53.3 
29.860 
29.852 
51.9 
45 
04.1 
47.6 
51.7 
41.7 
52.8 
NNE 
ine — It. clouds Sc wind throughout the day. Ev. Fine and starlight. 
T 22 
29.8S2 
29.S74 
4S.4- 
29.S06 
29.800 
50.3 
39 
04.3 
45.3 
49.8 
41.0 
53.2 
NE 
loudy — It. wind throughout the day. Ev. Overcast— It. rain & wind. 
F 23 
29.424 
29.416 
48.3 
29.534 
29.528 
49.9 
44 
00.2 
43.7 
46.7 
42.3 
51.6 
.500 
NW 
r A.M. Overcast — light steady rain, as also throughout the night. 
P.M. Overcast. Evening', Fine and starlighi. 
S 24 
29.712 
29.706 
60.3 
29.642 
29.636 
52.8 
43 
03.7 
4S.5 
54,3 
40.2 
55.0 
.333 
S var. ■ 
A.M. Cloudy— light brisk wind. P.M. Fine— light clouds — brisk 
wind. Evening, Overcast— light rain— high wind. 
©25 
29.688 
29.6S2 
72.9 
29.700 
29.696 
5 4.5 
46 
03. S 
50.5 
54,5 
43.9 
65.7 
.072 
s 
"A.M. Fine — light clouds — high wind — very high wind during the 
night. P.M. Overcast— brisk wind. F.v. The like. 
M 26 
30.040 
30.032 
54.5 
30.116 
30.10S 
57.7 
51 
04.2 
57.7 
63.2 
50.2 
59.3 
s 1 
loudy— light wind throughout the day, as also the evening. 
T 27 
30.140 
30.136 
71.6 
30.136 
30.12S 
61.8 
56 
05.4 
63.3 
71.0 
56.5 
72.2 
s 
ine— It. clouds Sc wind throughout the day. Ev. Fine and starlight. 
W2S 
30.200 
30.192 
62.3 
30.146 
30.13S 
62. S 
5S 
04.4 
63.3 
70.6 
57.0 
72.4 
.022 
N 
fFine— light clouds and wind throughout the day— rain early. 
T 29 
30.152 
30.144 
59.7 
30.142 
30.134 
62.2 
55 
01.3 
52.3 
67.0 
50.6 
71.6 
.072 
N 
fA.M. Cloudv, with occasional showers. P.M. Fine and cloudless. 
W30 
30.226 
30.21S 
65.3 
30.162 
30.154 
61.3 
47 
07.0 
58.4 
65.3 
46.6 
69.2 
NE F 
i Evening, Fine and starlight. 
ine— It. clouds— brisk wind throughout the day. Ev. Fine & starlight. 
1 
Sum. 
( 9 A.M. 3 M.P. 
MEAN. 
29.869 
29.862 
54.0 
29.848 
29.841 
52.7 
44 
03.4 
48.4 
53.6 
43.2 
56.4 
,.74S 
Mean Barometer corrected •< F. 20.805 . . 20.78/ 
1 
1 
1 C. 29.797 .. 29.779 
