50 
BULLETIN OF THE LABORATORIES 
SUMMARY FOR THE YEAR 1885. 
Jan, 
Feb. 
Mar 
Apr. 
May 
June 
July 
Aug 
Sept 
Oct. 
Nov 
Dec. 
Mean Relative 
Humidity 
84.1 
82.5 
81.0 
86.7 
79.0 
73.6 
68.2 
73-9 
76.2 
82.6 
84.6 
Mean Tempera- 
ture.. 
22.6 
18.6 
28.5 
48-3 
6p.6 
67.7 
75-5 

0-3 
50-4 
40.4 
305 
Highest Temper- 
ature 
56.0 
50.0 
58.0 
82.0 
85.0 
90.0 
93-0 
83-5 
76.0 
67.0 
59-0 
Date of Highest 
Temperature 
6th 
2Sth 
31st 
23d 
17 th 
7 th 
1 7th 

26 th 
ist 
7th 
9th 
Lowest Temper- 
ature 
-10.0 
-12. 
-2 
22 
33-0 
43 - 
46. 

37-0 
u-.s 
20.0 
-I 
Date of Lowest 
Temperature _ 
22d 
nth 
20th 
20th 
14th 
2d 
9th 
30th 
1st 
— 
23d 
24th 
31st 
29 th 
7th 
Range of Tem- 
perature _ 
66.0 
62.0 
6.0 
6.) 
c;2.o 
47.0 
47.0 
46-5 
48 5 
47 - 
60. 
Mean Daily 
Range of Temp 
i 
1 16. 1 
1 
20. 1 
17.0 
20.3 
21. 1 
23.8 
23.2 

22, 1 
19.0 
^ 3-7 
14.9 
Number of Clear 
Days — 
1 
i 
13 
1 1 
9 
10 
9 
U 
24 
18 
12 
1 1 
5 
Number of Fair 
Davs 
5 
7 
10 
13 
16 
10 
7 

2 
j 
,S 
7 
Number of Cl’dy 
Days . 
i ' 
13 
10 
12 
7 
6 
3 
0 
5 
1" 
14 
19 
Number of Days 
Rnin Fell 
14 
14 
' 10 
7 
9 
1 1 
10 

3 
9 
5 
10 
Total Rainfall for 
the Month. 
4-15 
2.80 
•45 
2 - 9 .S 
3 -” 
4.06 
3-90 

2.58 
,3.48 
2.90 
2. 10 
Prevailing Direc- 
tion of Wind- 
W 
SW 
W 
W 
W 
W 
W 
— 
W 
W 
W 
W 
