METEOROLOGICAL JOURNAL FOR MARCH AND APRIL, 1842 
9 o’clock, A.M. 
3 o’clock, P.M. 
'O • 
c £ 
External Thermometers. 
ja ~ 
A 
1842. 
Barometer 
uncorrected. 
Att. 
Barometer 
uncorrected. 
Att. 
'o a? 
G 
Fahrenheit. 
Self-registering 
•2 
REMARKS. 
Flint 
Glass. 
Crown 
Glass. 
Tlier. 
Flint 
Glass. 
Crown 
Glass. 
Ther. 
Q< 
S h 
A.M 
J3 P.M. 
LowestjHighes 
u 
5 
T 1 
29.236 
29.230 
48.0 
29.380 
29.372 
50.7 
46 
01.5 
49.8 
48.6 
42.0 
50.5 
.047 
s 
[ / A.M. Overcast — slight rain— light wind. P.M. Fine — light clouds. 
1 Evening, Fine and starlight— light clouds. 
W 2 
29.770 
29.762 
45.4 
29.640 
29.636 
48.5 
40 
03.0 
43.7 
50.3 
37.8 
51.0 
s 
/ Overcast— brisk wind— light rain nearly the whole of the day. 
T 3 
29.916 
29.908 
50.2 
29.906 
29.898 
52.2 
47 
02.9 
52.3 
55.7 
43.7 
52.6 
.402 
ssw 
A.M. Cloudy — brisk wind. P.M. Fine — light clouds. Ev. Cloudy. 
F 4 
30.008 
30.000 
50.6 
29.966 
29.958 
51.7 
45 
03.3 
45.3 
49.0 
43.8 
55.8 
svv 
/ Cloudy— light wind throughout the day. Evening, Overcast — very 
S 5 
30.042 
30.036 
48.3 
30.082 
30.074 
50.3 
42 
02.1 
41.3 
49.8 
39.0 
50.6 
s 
Fine— light clouds throughout the day. Evening, Fine & starlight. 
© 6 
30.010 
30.002 
47.4 
29.888 
29.882 
48.2 
41 
02.9 
42.0 
49.5 
39.2 
52.2 
ssw 
Fine— nearly cloudless throughout the day. Ev. Fine and starlight. 
M 7 
29.750 
29.742 
45.7 
29.642 
29.636 
48.8 
40 
03.0 
44.3 
50.3 
39.0 
51.0 
s 
Cldy. — It. wind throughout the day. Ev. Overcast— very slight rain. 
T 8 
29.528 
29.520 
50.6 
29.504 
29.498 
51.7 
46 
03.4 
51.5 
53.5 
44.3 
51.8 
s 
f A.M. Cloudy — brisk wind — high wind throughout the night. P.M. 
1 Fine— light clouds. Evening, Overcast — light rain. 
W 9 
29.660 
29.652 
49.5 
29.650 
29.644 
49.8 
42 
03.4 
43.3 
46.8 
39.0 
54.6 
.150 
s 
f A.M. Fine — light clouds and wind with showers. P.M. Cloudy. 
( Evening, Overcast — light rain — high wind. 
T 10 
29.574 
29.568 
46.5 
29.830 
29.824 
47.9 
40 
04.3 
41.5 
46.8 
38.6 
49.4 
.455 
w 
/ A.M. Cloudy — very high w ind, as also throughout the night. P.M. 
1 Fine — light clouds— brisk wind. Evening. Fine and starlight. 
Overcast — light wind throughout the day. Evening, The same. 
F 11 
30.040 
30.032 
46.2 
29.900 
29.894 
48.5 
40 
03.4 
45.3 
51.0 
40.0 
48.6 
s 
0 s12 
30.094 
30.086 
48.8 
30.050 
30.042 
51.0 
42 
03.5 
44.3 
54.3 
41.3 
53.6 
w 
Fine — light clouds and wind throughout the day. Ev. Fine & starlight. 
©13 
29.940 
29.934 
50.2 
30.086 
30.082 
51.0 
44 
05.0 
46.3 
51.5 
43.7 
56.0 
.094 
w 
/ A.M. Fine — broken clouds— light wind— very high wind, and light 
1 rain early. P.M. Cloudy— brisk wind. Evening, Light fog. 
3 M 14 
30.276 
30.268 
48.3 
30.308 
30.300 
50.4 
43 
03.4 
45.4 
49.8 
44.2 
51.7 
.022 
s 
( Overcast— It. wind, with occasional slight rain throughout the day. 
1 Evening, Overcast. [Light fog. 
Overcast — light wind throughout the day — very slight rain early. Ev . 
§ T 15 
30.398 
30.392 
50.0 
30.384 
30.376 
51.5 
46 
02.3 
49.5 
54.0 
45.3 
50.8 
s 
5 wie 
30.360 
30.352 
52.0 
30.264 
30.256 
52.8 
49 
02.7 
51.3 
51.8 
49.8 
54.6 
s 
f Overcast — light wind throughout the day. Evening, Overcast— 
l very slight rain. 
^ T17 
30.188 
30.180 
52.4 
30.074 
30.066 
54.2 
48 
04.4 
50.3 
53.8 
47.4 
52.7 
w 
Cloudy' — It. wind throughout thedav. Ev. Overcast — light rain. 
F18 
29.792 
29.786 
54.3 
29.714 
29.706 
54.0 
48 
05.0 
48.7 
49.7 
45.7 
55.3 
.041 
w 
f Fine — It. clouds & wind throughout the day— high wind throughout 
[ the night. Evening, Slight rain. [Light rain. 
A.M. Fine— light clouds— brisk wind. P.M. Ovct.— brisk wind. Ev. 
S 19 
29.558 
29.552 
52.3 
29.420 
29.414 
50.3 
40 
05.1 
43.6 
45.3 
39.0 
52.3 
w 
©20 
29.298 
29.292 
47.9 
29.464 
29.456 
49.0 
42 
03.8 
41.7 
47.2 
41.4 
46.7 
.080 
NW 
f A.M. Overcast— light rain and wind. P.M. Fine — light clouds and 
X wind. Evening, Overcast — light rain. 
M21 
29.890 
29.884 
47.8 
30.018 
30.010 
47.7 
39 
03.2 
41.7 
45.0 
39.4 
48.0 
.105 
NW 
( A.M. Fine — light clouds— brisk wind. P.M. Light showers— brisk 
T22 
30.158 
30.150 
47.0 
30.032 
30.026 
47.8 
36 
03.5 
39.5 
44.7 
36.9 
46.4 
.091 
NW 
[ wind. Evening, Fine and moonlight. [brisk wind. 
A.M. Fine— It. clouds & wind. P.M. Cloudy 7 — brisk windy. Ev. Ovct. 
W23 
30.124 
30.118 
49.6 
30.130 
30.122 
45.0 
35 
04.7 
39.5 
37.7 
34.3 
45.2 
.094 
N 
/ A.M. Fine — light clouds — brisk wind — light snow. P.M. Fine— 
T 24 
30.240 
30.232 
41.6 
30.206 
30.198 
43.4 
35 
03.5 
37.8 
43.7 
33.6 
43.3 
.025 
N 
X light clouds— brisk wind — light snow. Ev. Fine and starlight. 
Overcast— light wind throughout the day. Evening, Slight rain. 
F 25 
30.128 
30.120 
44.8 
29.976 
29.968 
47.8 
39 
02.3 
44.7 
52.3 
37.9 
45.2 
SW 
Cloudy — light wind throughout the day. Evening, Overcast. 
@ S 26 
29.636 
29.630 
51.5 
29.592 
29.584 
48.3 
40 
04.2 
44.8 
48.2 
39.8 
53.4 
.086 
w 
/ A.M. Fine— light clouds and wind — high wind — light rain through- 
ly out the night. P.M. Fine — light showers. Evening, Cloudy. 
/A.M. Overcast — light wind. P.M. Fine — light clouds and wind. 
(. Evening, Very slight rain. 
©27 
29.774 
29.766 
47.6 
29.782 
29.776 
48.0 
40 
04.1 
43.3 
50.2 
36.0 
49.0 
w 
M2S 
29.720 
29.712 
47.0 
29.754 
29.746 
51.0 
43 
02.7 
50.3 
57.7 
43.0 
50.8 
w 
A.M. Overcast — It. wind. P.M. Cloudy — light wind. Ev. The same. 
T 29 
29.912 
29.904 
52.3 
29.960 
29.952 
53.3 
46 
03.8 
50.2 
56.8 
49.2 
58.5 
w 
Cloudy 7 — light wind throughout the day. Evening, The same. 
W30 
29.896 
29.888 
53.0 
29.836 
29.828 
54.7 
48 
03.0 
50.7 
55.7 
49.2 
57.4 
.016 
S 
(A.M. Overcast — light showers. P.M. Fine— light clouds, with 
\ occasional show r ers. Evening, Overcast. 
T31 
29.780 
29.774 
51.6 
29.592 
29.586 
53.2 
47 
02.5 
48.8 
55.0 
45.6 
57.4 
.069 
SSE 
(A.M. Overcast— slight rain— brisk wind. P.M. Overcast— very 
X slight rain. Evening, Overcast — light rain and w ind. 
Sum. 
( 9 A.M. 3 P.M. 
MEAN. 
29.893 
29.886 
49.0 
29.872 
29.865 
50.1 
42 
03.4 
45.6 
50.2 
41.6 
51.5 
1.777 
Mean Barometer corrected J. F. 29.842 .. 29.819 
(.C. 29.834 .. 29.811 
F 1 
29.340 
29.334 
52.8 
29.328 
29.324 
53.0 
45 
03.9 
45.0 
44.7 
43.4 
57.6 
.172 
S 
/ A.M. Cloudy — It. showers — brisk wind — very high w ind throughout 
t the night. P.M. Fine— It. clouds— hail & rain. Ev. Fine & starlight . 
S 2 
29.606 
29.600 
49.9 
29.702 
29.696 
49.8 
42 
02.9 
41.8 
43.8 
38.0 
48.6 
.088 
NW 
( A.M. Overcast — light brisk wind, with showers. P.M. Cloudy— 
X brisk wind. Evening, Fine and starlight. 
© 3 
29.836 
29.830 
53.7 
29.916 
29.910 
46.5 
36 
04.1 
38.4 
44.3 
34.2 
46.5 
NW 
f A.M. Cloudy — light brisk wind. P.M. Heavy clouds — brisk wind. 
X Evening, Cloudy — slight rain. 
M 4 
30.188 
30.180 
44.2 
30.244 
30.236 
46.0 
36 
04.5 
40.7 
44.5 
37.0 
46.0 
NW 
Cloudy — brisk wind throughout the day 7 . Evening, The same. 
T 5 
30.392 
30.384 
50.0 
30.334 
30.326 
46.6 
35 
05.2 
41.7 
46.5 
36.5 
46.7 
N 
A.M. Cloudy— It. wind. P.M. Fine— It. clouds. Ev. Fine& starlights 
W 6 
30.200 
30.194 
49.0 
30.046 
30.038 
46.8 
36 
04.7 
42.4 
50.0 
35.3 
47.5 
NE 
Fine— It. clouds & wind throughout the day. Ev. Fine & starlight. 
T 7 
29.862 
29.854 
45.2 
29.824 
29.816 
48.3 
42 
02.7 
43.7 
56.3 
39.6 
52.0 
N 
f A.M. Overcast— brisk wind. P.M. Fine — light clouds. Evening, 
X Fine and starlight. 
F 8 
30.094 
30.086 
48.0 
30.144 
30.136 
49.7 
43 
03.4 
44.8 
51.3 
39.4 
56.9 
NE 
f A.M. Cloudy— light brisk wind. P.M. Fine— nearly cloudless. 
X Evening, Fine and starlight. 
S 9 
30.358 
30.350 
52.7 
30.332 
30.324 
47.4 
36 
05.3 
44.2 
45.3 
37.0 
52.7 
E 
/ A.M. Cloudy — light wind. P.M. Fine — light clouds and wind. 
0 ©io 
30.388 
30.380 
43.8 
30.318 
30.312 
46.0 
33 
03.0 
43.2 
45.9 
37.0 
46.6 
E 
A.M Cloudy — light wind. P.M. Overcast — It. wind. Ev. Cloudv. 
Mil 
30.248 
30.240 
48.9 
30.164 
30.158 
46.8 
37 
05.1 
43.7 
46.3 
36.7 
46.3 
NE 
/ A.M. Cloudy — brisk wind. P.M. Fine— light clouds & w ind, with 
X hail shower. Evening, Overcast. 
T 12 
30.118 
30.112 
46.0 
30.032 
30.024 
45.2 
33 
06.2 
42.0 
43.3 
37.6 
46.7 
.050 
NE 
A.M. Cloudy — brisk wind. P.M. Overcast — It. snow. Ev. Overcast. 
W13 
29.990 
29.982 
42.3 
29.960 
29.954 
44.7 
36 
02.8 
39.2 
42.7 
37.8 
44.4 
N 
C Cloudy — brisk wind throughout the day — slight rain early. Evening, 
( Overcast — light rain. 
d T14 
29.932 
29.926 
42.5 
29.954 
29.948 
45.2 
38 
02.6 
41.2 
47.2 
37.8 
43.6 
.063 
N 
/A.M. Overcast— light brisk wind. P.M. Overcast— hail and rain— 
£F15 
30.084 
30.076 
46.0 
30.068 
30.060 
47.0 
39 
04.5 
44.3 
48.4 
40.3 
47.6 
N 
Cloudy — brisk wind throughout the day. Ev. Fine and moonlight. 
^816 
30.144 
30.136 
50.6 
30.124 
30.116 
46.9 
38 
04.6 
44.6 
47.4 
39.5 
49.0 
NE 
/ A.M. Cloudy— brisk wind. P.M. Fine — It. clouds— brisk wind. Ev. 
X Fine and starlight. 
( Overcast— brisk wind throughout the day. Evening, Overcast— 
©17 
30.206 
30.198 
44.0 
30.176 
30.172 
46.0 
40 
04.0 
44.4 
46.8 
37.8 
48.7 
N 
M18 
30.210 
30.202 
46.9 
30.194 
30.186 
47.6 
40 
03.6 
44.2 
47.3 
42.0 
47.4 
N 
X very slight rain. 
Overcast — light wind throughout the day. Evening, The same. 
T19 
30.232 
30.224 
45.5 
30.178 
30.170 
47.6 
40 
02.9 
42.3 
51.3 
41.3 
47.8 
N 
/A.M. Overcast — light wind. P.M. Fine — nearly cloudless. Ev. 
X Fine and starlight. 
W20 
30.182 
30.176 
53.3 
30.1.40 
30.132 
50.3 
43 
04.7 
49.4 
58.7 
38.7 
51.8 
N 
/A.M. Fine— light clouds and wind. P.M. Fine and cloudless. 
T21 
30.182 
30.176 
57.6 
30.108 
30.100 
51.7 
44 
03.1 
46.8 
55.7 
41.3 
59.5 
ENE 
X Evening, Fine and starlight. 
A.M. Cloudy — It. brisk wind. P.M. Fine — It. clouds. Ev. Overcast. 
F 22 
30.022 
30.014 
50.3 
29.944 
29.936 
53.0 
44 
02.1 
46.8 
60.7 
45.0 
56.5 
NE 
A.M. Overcast — It. brisk wind. P.M. Fine & cloudless. Ev. Cloudy. 
S 23 
29.942 
29.936 
60.0 
29.914 
29.906 
57.0 
50 
04.3 
54.3 
67.3 
47.0 
61.3 
NNW 
Fine— It. clouds and wind throughout the day. Ev. Fine & moonlight. 
•©24 
29.974 
29.966 
63.0 
29.946 
29.942 
59.0 
54 
03.8 
60.5 
61.5 
52.0 
68.6 
.097 
N 
( A.M. Fine— light clouds. P.M. at S past 2, heavy thunder & forked 
X lightning, with heaw rain. Ev. Fine and starlight. 
M25 
30.080 
30.072 
58.8 
30.068 
30.060 
60.3 
54 
05.2 
57.8 
66.5 
49.0 
69.3 
E 
Fine — It. clouds & wind throughout the day. Ev. Fine & moonlight. 
T26 
30.114 
30.108 
71.3 
30.076 
30.068 
59.0 
52 
07.7 
56.7 
59.3 
47.4 
67.5 
NE 
Fine — nearly cloudless throughout the day. Ev. Fine and starlight. 
W27 
30.048 
30.040 
67.8 
30.012 
30.004 
57.4 
46 
08.3 
54.3 
58.7 
44.5 
62.3 
NE 
( Fine — nearly cloudless— light wind throughout the day. Evening, 
X Fine and starlight. 
T28 
30.100 
30.092 
62.0 
30.080 
30.072 
5S.3 
48 
05.8 
54.7 
65.2 
45.8 
59.4 
N 
Fine— It. clouds & wind throughout the day. Ev. Fine & starlight. 
F 29 
30.088 
30.082 
62.3 
30.008 
30.000 
58.8 
46 
07.6 
55.3 
63.0 
45.7 
66.0 
NE 
A.M. Fine— It. clouds & wind. P.M. Fine & cloudless. Ev. Cloudy. 
S 30 
29.882 
29.876 
69.7 
29.822 
29.814 
60.3 
51 
06.9 
57.7 
68.7 
47.6 
64.6 
ENE 
/Fine — nearly cloudless— light wind throughout the day. Evening, 
X Fine and starlight. 
Sum. 
{ 0 A.M. 3 P.M. 
arometer corrected % F -30.007 .. 29.983 
XC. 29.999 .. 29.974 
MEAN . 
30.068 
30.061 
52.6 
30.039 
30.031 
50.7 
42 
04.5 
46.9 
52.6 
41.1 
53.8 
.470 
Mean B 
