16 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Monthly means of Meteorologio Observations at Bering Island — Continued. 
NUMBER OF FOGGY DATS. 
CLOUDINESS, EXPRESSED IN PERCENTAGES. 
[The percentage of cloudine.ss was obtained from the eye estimate.s of the observer, recorded on a scale of 0 to 
10 at each observation. Tlie mean of tlie three daily observations was used as the mean for the day ; 100 per 
cent represents sky completely overcast.] 
Year. 
Jan. 
Feb. 
Mar. 
Apr. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
1^’ov. 
Dec. 
1882 
03 
83 
60 
79 
73 
78 1 
1883 
86 
72 
86 
84 
90 
92 
89 
85 
73 
74 
77 
78 
1884.... 
91 
89 
88 
79 
87 
81 
66 
87 
65 
79 
83 
81 
1885.... 
88 
86 
90 
86 
75 
75 
63 
73 
86 
76 
77 
80 
1886 
84 
86 
86 
81 
Annual means: 82 in 1883, 81 in 1884, 80 in 1885. 
PERCENTAGE OF RELATIVE HUMIDITY. 
Year. 
Jan. 
Feb. 
M.ar. 
Apr. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
1882 
1883 
89.9 
91, 1 
93.5 
87.9 
84.0 
85.2 
82.6 
1884.... 
83.3 
84.3 
87.4 
90. 1 
88.5 
35.1 
92.2 
91.8 
82.4 
86.3 
90.8 
90.2 
1885.. .. 
1886.. .. 
89.9 
95.1 
93.2 
92.1 
89.3 
90.0 
89.0 
90.3 
89.4 
90.3 
92.7 
92.3 
91.5 
84.7 
90.2 
87.0 
Means . 
89.4 
89.9 
88.9 
89.3 
89.0 
88.4 
92.0 
92.5 
87.3 
85.0 
88.7 
86.6 
Annmal means: 87.7 for 1884, 90 for 1885. 
RAINFALL AND MELTED SNOW— AMOUNT OF, PRECIPITATION. 
Tear. 
Jan. 
Feb. 
Mar. 
Apr. 
May. 
June. 
July 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
1882 
2. 07 
1. 45 
1. 07 
1. 32 
3. 29 
2. 23 
2.21 
1883.... 
0.61 
2. 98 
0.61 
1.03 
0. 38 
2. 38 
1.77 
2. 25 
2. 50 
2. 90 
2.20 
1.96 
1884.... 
0. 94 
1. 49 
1.44 
1.38 
1.31 
0. 26 
2. 27 
1.71 
1.70 
3. 26 
3. 39 
0. 96 
1885.... 
1886 
0. 58 
0. 66 
0. 39 
1.50 
0. 25 
1.33 
0. 86 
1. 25 
1. 19 
1.63 
4. 05 
2. 15 
3. 32 
1. 34 
4. 08 
1.61 
Total: 21.57 inches in 1883; 20.11 inches in 1884; 21.45 inches in 1885. 
NUMBER OF DAYS ON WHICH 0.1 INCH OR MORE RAIN OR SNOW FELL. 
Tear. 
Jan. 
Feb. 
Mar. 
Apr. 
May. 
.June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
1882 
13 
18 
16 
5 
13 
7 
8 
18.83.... 
20 
19 
14 
18 
10 
20 
20 
19 
16 
16 
18 
19 
1884.... 
12 
14 
15 
12 
11 
5 
13 
15 
14 
20 
13 
16 
1885.... 
18 
8 
10 
7 
12 
12 
12 
14 
14 
12 
18 
8 
1886.... 
13 
12 
11 
9 
Total: 209 days in 1883; 160 days in 1884; 145 days in 1885. 
