ABSTRACT of the METEOROLOGICAL JOURNAL kept on board His Majesty’s Ship Hecla, 
during the Month of April, 1820. 
Temperature of Air 
in shade. 
Barometer. 
Prevailing Winds. 
Prevailing Weather. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
Maxi- 
mum. 
Mini. 
mum. 
Mean. 
1 
O 
- 0 
O 
—16 
0 
— 6.33 
inches. 
30.02 
inehes. 
30 01 
inches. 
30.013 
N.W. 
Light breezes and cloudy : snow. 
2 
— 2 
—25 
— 8.37 
30.02 
29.89 
29.955 
Round the compass. 
Light and variable with snow. 
3 
— 9 
—26 
— 18.71 
29.81 
29.79 
29.798 
North 
Light airs and fine. 
4 
~ 8 
—26 
— 14.75 
29.86 
29.33 
29.843 
North 
Ditto ditto. 
5 
— 5 
—24.5 
— 16.62 
30.00 
29.86 
29.908 
N.N.W. 
Ditto ditto. 
6 
—15 
—25 
— 18.75 
30.01 
29.96 
29.983 
N.N.W. 
Fresh breezes witli drift. 
7 
-13 
—26 
— 21.00 
30.00 
29.89 
29.910 
N.W. 
Moderate and fine. 
8 
-13 
—29 
— 20.46 
29.87 
29.84 
29.855 
North 
Light airs and fine. 
9 
—14 
—30 
— 21.85 
29.88 
29.83 
29.850 
S.E. 
Ditto ditto. 
10 
—12 
—32 
— 22.96 
29.80 
29.70 
29.730 
North 
Ditto ditto. 
11 
-12 
—27 
— 19.67 
29.68 
29.57 
29.620 
North 
Ditto ditto. 
12 
—11 
—29 
— 20.00 
29.64 
29.52 
29.565 
North 
Ditto ditto. 
13 
—15 
—31 
— 22.92 
29.85 
29.67 
29.768 
N.by.W. to South. 
Ditto ditto. 
14 
-14 
—29 
— 19.37 
29.95 
29.89 
29.932 
N.N.E. to S.S.E. 
Ditto ditto. 
15 
+ 6 
—17 
— 7.33 
29.72 
29.40 
29.543 
E.S.E. 
From fresh to light breezes. 
16 
— 5 
-19 
— 12.33 
29.90 
29.57 
29.770 
N.N.W. 
Light breezes and clear. 
17 
— 5 
—21 
— 13.62 
30.26 
29.94 
30.127 
Round the compass. 
Ditto ditto. 
18 
- 1 
-15 
— 8.17 
30.32 
30.23 
30.288 
Calm. 
Clear weather. 
19 
+ 2 
—13 
— 4.00 
30.23 
29.92 
30.052 
E.S.E. 
Light airs and fine. 
20 
+ 4 
— 9 
— 2.21 
29.78 
29.67 
29.697 
East. 
Fresh breezes : snow and drift. 
21 
+ 3 
-10 
— 3.17 
29.96 
29.70 
29.837 
N.N.W. 
Moderate and fine. 
22 
0 
—12 
— 4.63 
30.00 
[29.97 
29.987 
North 
Fresh breezes and hazy. 
23 
+ 13 
— 5 
+ 4.00 
29.89 
29.63 
29.756 
N.N.E. 
Fresh breezes with drift. 
24 
+ 14 
+ 4 
+ 10.42 
29.71 
29.67 
29.692 
East. 
Fresh breezes with snow and drift. 
25 
+ 14 
— 7 
+ 4.88 
30.20 
29.70 
29.970 
East to S.S.W. 
Moderate with snow and drift. 
26 
+ 11 
—12 
— 1.17 
30.55 
30.25 
30.380 
North. 
Light airs and fine weather. 
27 
+ 9 
—12 
+ 0.08 
30.86 
30.66 
30.803 
North to S.E. 
Ditto ditto. 
28 
+ 15 
— 5 
+ 4.83 
30.79 
30.46 
30.607 
Round the compass. 
Ditto ditto. 
29 
+ 22 
+ S 
+ 12.75 
30.66 
30.43 
30.555 
North. 
Light airs with snow. 
30 
+ 32 
+ 6 
+ 20,38 
30.67 
30.34 
30-505 
N.W. 
Ditto ditto. 
+ 32 
—32 
- 8.37 
30.86 
29.40 
29.978 
