OF 1910 IN HERTFORDSHIRE. 
259 
Table VI. — Climatological Observations taken at Rosebank, 
Berkhamsted. Latitude: 51° 45' 40" N. Longitude: 
0° 33' 30" W. Altitude: 400 feet. Observer: Edward 
Mawley, E.R.Met. Soc. 
Months 
Temperature of the Air 
Humidity 
Cloud, 0-10 
Rain 
Means 
Extremes 
Amount 
Days 
Mean 
Min. 
Max. 
Range 
Min. 
Max. 
O 
O 
O 
O 
O 
O 
% 
ins. 
Jan. 
38-2 
33' 1 
43*3 
10-2 
16*2 
53*8 
91 
7-0 
i*99 
15 
Feb. 
407 
34-8 
46-5 
117 
27-8 
53*8 
88 
6-9 
3 50 
23 
March . 
427 
35-6 
497 
14-1 
29*9 
55*o 
83 
5*3 
I -20 
10 
April. 
45'6 
37-8 
53*4 
15-6 
26 0 
64-2 
77 
8-i 
1*41 
16 
May. 
52-6 
43*4 
617 
18-3 
2 7*6 
75*o 
80 
7*5 
2 '24 
19 
June. 
59 1 
50-1 
68-o 
17*9 
40*9 
78 9 
77 
8*o 
3*8l 
11 
July. 
577 
50*3 
65*1 
14-8 
42-6 
7 4*o 
80 
8-8 
2 ’01 
11 
August. 
59*8 
52-1 
67*5 
i5*4 
45*2 
73*5 
79 
7*3 
270 
20 
Sept. 
54*8 
467 
63-0 
167 
34*9 
73*5 
85 
8-o 
•63 
8 
Oct. 
52-2 
45*8 
58*5 
127 
39*o 
7 CT 2 
9i 
9*i 
2-68 
!5 
| Nov.| 
377 
30*3 
44*7 
14*4 
21-3 
55*3 
89 
7*i 
3’5i 
15 
i Dec. . 
427 
38-2 
47-2 
9-0 
25-1 
53*5 
93 
8-o 
5*7i 
23 
| Year . 
1 1 
48-6 
4i*3 
55*8 
I4‘5 
l6*2 
ON 
OO 
84 
7*7 
3i*39 
186 
Table VII .—Other Meteorological Observations taken at Berk¬ 
hamsted by Mr. Mawley. 
l 
Months 
Pressure 
of the 
atmo¬ 
sphere 
Temperature at 9 a.m. 
Day 
s of 
Bright Sunshine 
of the 
air 
of 
evapo¬ 
ration 
of the soil 
clear 
sky 
over¬ 
cast 
Total 
hours 
Max.in 
one day 
Sun¬ 
less 
days 
at 1ft. 
at 2 ft. 
ins. 
O 
O 
O 
O 
Jan. 
29*852 
37*3 
36*3 
38*5 
40*4 
5 
15 
65 
6*8 
10 
Feb.. 
•661 
40*2 
38*8 
38*6 
39*4 
4 
10 
80 
7*4 
5 
March 
30*185 
40*8 
387 
42*0 
42 *6 
9 
11 
154 
10*1 
3 
April.... 
29*852 
45*6 
42*5 
46*7 
46*6 
1 
14 
116 
10*5 
2 
May .... 
•906 
5i*9 
48*9 
54*3 
52*9 
2 
8 
204 
14*2 
1 
June ... 
•910 
59*o 
55*2 
62 *o 
60 - 6 
2 
17 
179 
13*9 
3 
July .... 
•898 
57*o 
53*8 
60 *8 
60 *4 
1 
17 
126 
13*3 
August 
•918 
59*7 
56*3 
62*0 
61 *6 
0 
9 
148 
ii*6 
1 
Sept. 
30*247 
54*4 
52*2 
57*4 
58*2 
2 
12 
ii5 
10*7 
2 
Oct. 
*035 
5o*8 
49*6 
54*o 
55*i 
1 
21 
61 
7*0 
8 
Nov. 
29*658 
35*6 
34*4 
40*5 
44*3 
4 
7 
73 
6*3 
7 
Dec. 
•712 
42*3 
41*4 
41*4 
42*5 
2 
16 
25 
5*5 
14 
Year 
29*903 
47*9 
457 
49*9 
5o*4 
33 
157 
1346 
14*2 
57 
