206 
J. HOPKINSON-CLIMA.TOLOGrICA.L OBSERVATIONS 
BERKHAMSTED. 
(Rose Bank.) 
Latitude: 51° 45' 40" IN’. Longitude: 0° 33' 30" W. Altitude: 
400 feet. 
Observer : Edward Mawley , F.R.Met.Soc. 
M onths 
Temperature of the Air 
Humidity 
Cloud, 0-10 
Rain 
Means 
Extremes 
Am’nt 
Days 
Mean 
Min. 
Max. 
Range 
Min. 
Max. 
O 
O 
O 
O 
O 
0 
% 
ins. 
Jan. 
33*5 
27-8 
39‘i 
ii*3 
11 *2 
50-2 
93 
8-4 
272 
16 
Feb. 
37-8 
3 ri 
445 
I3-4 
i7'9 
52-4 
89 
6-6 
•80 
8 
March . 
37-8 
3°-6 
45* 1 
*4*5 
T 9*3 
56-6 
82 
7'i 
1-87 
15 
April . 
43’i 
34 *° 
52 '2 
l8‘2 
233 
635 
76 
6 6 
i*34 
11 
May.... 
487 
40-9 
5b-4 
155 
32-6 
67*1 
78 
77 
2*36 
23 
June. 
58-9 
48*2 
697 
21-5 
395 
82-0 
70 
55 
•88 
4 
July. 
635 
51-8 
75*i 
23*3 
40-1 
84-9 
63 
45 
75 
10 
August..... 
60’4 
49-0 
71-8 
22*8 
37-8 
85-0 
65 
5‘i 
•89 
7 
Sept. 
53‘2 
45*9 
60-6 
147 
33*i 
66-9 
79 
7-0 
2’6o 
i7 
Oct. 
44‘4 
36-9 
51-9 
150 
23*2 
60 *2 
84 
7° 
177 
12 
Nov. 
397 
347 
447 
IO'O 
16-8 
53’4 
91 
7-8 
3’24 
18 
Dec. 
36-8 
32-1 
41-4 
9'3 
227 
52-9 
90 
7‘4 
177 
18 
Year. 
46*5 
38*6 
54'4 
15-8 
11 “2 
p 
'O 
00 
80 
67 
20*99 
159 
ST. ALBANS. 
(The Grange.) 
Latitude : 51° 45' 9" N. Longitude : 0° 20' 7" W. Altitude : 
380 feet. 
Observer: John Ilopkinson, F.R.Met.Soc. 
Months 
Temperature of the Air 
Humidity 
Cloud, 0-10 
Rain 
Means 
Extremes 
0 
< 
Days 
Mean 
Min. 
Max. 
Range 
Min. 
Max. 
O 
O 
O 
O 
O 
O 
% 
ins. 
Jan. 
345 
29*0 
39-6 
io-6 
137 
48*8 
89 
8-o 
1-88 
16 
Feb. 
385 
3i-8 
44-8 
13-0 
20-8 
54‘ 2 
90 
62 
•64 
8 
March .... 
385 
3i5 
45-i 
13*6 
21 ’9 
55-6 
88 
7*4 
170 
12 
April . 
43 0 
347 
5i *4 
167 
26-3 
62 - o 
80 
5-6 
I *22 
12 
May. 
49 - 9 
42*1 
57*6 
155 
34-o 
667 
79 
80 
2'12 
22 
June . 
60 *5 
49‘8 
71-2 
21*4 
42-4 
82-2 
69 
5*7 
'65 
4 
July. 
64*9 
54*o 
75-8 
21*8 
44-8 
86-o 
63 
4*6 
•88 
11 
August. 
61 *4 
5i5 
71-4 
20*1 
43'2 
847 
67 
45 
1 07 
7 
Sept. 
53-8 
46*8 
6o - 9 
I4-I 
355 
675 
79 
5*8 
3* 12 
18 
Oct. 
447 
385 
5 1 * 1 
12*8 
25 *9 
597 
84 
7-0 
1 -62 
l 3 
Nov. 
39-8 
347 
44’8 
IO-I 
18*6 
54*6 
92 
7*i 
3*40 
20 
Dec. 
37*0 
31-6 
42-4 
io*8 
23-9 
52*6 
90 
75 
i*54 
19 
Year .... 
47 "2 
39-6 
547 
I 5’ 1 
137 
86-o 
81 
6*5 
19-84 
162 
