ON THE HOURLY OBSERVATIONS OF THE THERMOMETER. 187 
Table II. Showing the Mean Temperature of each Hour for 
each Month of 1833 5 and for the whole Year. 
Hour. 
Jan. 
Feb. 
Mar. 
April. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Mean an¬ 
nual temp, 
of each 
hour. 
1 A.M. 
40*40 
46*10 
38*50 
44*70 
52*00 
53*56 
56*20 
54*00 
52*80 
51*20 
47*50 
48*66 
48*80 
2 ... 
40*50 
45*70 
38*20 
44*50 
51*60 
53*46 
55*80 
53*23 
52*50 
51*00 
47*10 
48*70 
48*52 
3 ... 
40*20 
45*00 
38*10 
44*30 
51*50 
53*50 
55*40 
53*10 
52*40 
50*80 
47*10 
48*70 
48*34 
4 ... 
40*20 
45*20 
37*90 
43*80 
51*50 
53*40 
55*00 
52*70 
52*16 
50*26 
46*96 
48*60 
48*14 
5 ... 
40*00 
45*00 
37*50 
43*90 
51*70 
54*06 
55*30 
52*70 
52*00 
50*00 
46*96 
48*60 
48*14 
6 ... 
39*70 
45*10 
37*60 
44*20 
53*40 
55*86 
57*40 
54*00 
53*26 
50*30 
46*70 
48*76 
48*85 
7 ... 
39*80 
45*20 
38*50 
46*26 
56*30 
57*50 
59*90 
56*70 
54*50 
51*10 
47*40 
49*10 
50*18 
8 ... 
40*50 
45*50 
40*20 
49*10 
59*10 
59*26 
62*20 
60*20 
57*06 
52*96 
48*60 
49*50 
52*14 
9 ... 
41*20 
46*60 
42*80 
50*90 
61*00 
60*30 
63*70 
63*20 
58*90 
55*96 
49*86 
49*70 
53*67 
10 ... 
42*20 
47*50 
45*00 
51*80 
62*40 
60*70 
65*80 
65*20 
61*00 
58*40 
51*00 
50*70 
55*14 
11 ... 
43*20 
48*60 
45*50 
52*96 
63*70 
61*06 
67*2066*70 
61*90 
59*80 
52*30 
51*20 
56*15 
12 ... 
44*30 
49*80 
46*70 
53*70 
64*30 
61*40 
67*60 
66*60 
63*06 
60*56 
53*60 
51*70 
56*95 
1 P.M. 
44*40 
49*50 
47*20 
54*10 
64*70 
61*70 
67*60 
67*10 
63*30 
60*90 
53*60 
51*80 
57*15 
2 ... 
43*90 
48*90 
46*70 
53*70 
65*00 
61*70 
67*00 
67*10 
63*30 
60*10 
53*70 
51*30 
56*86 
3 ... 
43*90 
48*70 
46*00 
53*00 
64*20 
60*90 
67*20 
66*40 
62*1659*2052*36 
50*70 
56*22 
' 4 ... 
43*30 
47*80 
45*40 
52*20 
63*48 
60*76 
66*50 
65*50 
61*00 58*00 51*40 
50*36 
55*47 
5 • • • 
42*60 
47*20 
44*50 
50*86 
62*10 
59*70 
65*30 
64*40 
59*36 
56*46 
50*20 
49*26 
54*32 
6 ... 
42*00 
46*60 
43*30 
49*50 
60*36 
58*80 
63*60 
62*70 
57*8054*90 
49*86 
49*10 
53*20 
7 ... 
41*70 
46*50 
42*20 
47*90 
58*47 
57*70 
61*90 
60*70 
56*2054*00 
49*70 
49*06 
52*16 
8 ... 
41*20 
46*50 
41*50 
46*80 
56*87 
56*90 
60*30 
59*30 
55*4653*50 
49*30 
49*06 
51*38 
9 ... 
41*30 
46*60 
40*90 
46*20 
55*60 
55*96 
58*90 
57*90 
54*6052*90 
48*60 
49*00 
50*70 
10 ... 
41*00 
46*50 
40*40 
45*60 
54*20 
55*40 
57*90 
56*60 
53*6652*40 
48*20 
48*86 
50*00 
11 ... 
40*80 
46*40 
39*70 
45*40 
53*89 
55*10 
57*30 
55*70 
53*16 
51*86 
47*80 
48*86 
49*65 
12 ... 
40*50 
46*30 
39*10 
44*80 
53*28 
54*66 
56*50 
54*80 
52*90 
51*76 
47*60 
48*86 
49*17 
Means 
41*60 
46*78 
41*80 
48*34 
57*94 
57*20 
61*31 
59*81 
56*85 
54*50 
49*40 
49*50 
52*13 
Mean temp, of the whole year by this table, from 8760 observations, 52*13. 
