TRANS. ST. LOUIS ACAD. SCIENCE. 
500 
the sky, rises from December gradually till May, falls a little in 
June and July and more in August, rises to its highest point in 
September, is yet high in October and then falls rapidly till De¬ 
cember, to rise again in January. 
The temperature of our continental locality shows a great dif¬ 
ference from that of the western coast of Europe ; as a convenient 
example we may refer to the temperature of London. Their win¬ 
ters are warmer from the latter part of November until the begin- 
ningof March, and their summers much cooler from this period to 
the latter third of November ; and the mean is much higher here. 
Whole 
Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dec. year. 
St. Louis'.. 31.8 35.4 43.7 56.2 66.3 74.7 79.2 76.8 69.0 56.1 42.8 33.4 55.4 
London... 37.2 39.3 42.7 48.1 54.5 60.8 63.6 62.0 57.6 50.4 42.7 39.7 49.9 
Difference.45.4 +3.9 -1.0 -8.1 -11.8 -13.9 -15.6 -14.8 -11.4 -5.7 -0.1 +6.3 -5.5 
MEAN AND EXTREME TEMPERATURES IN ST. LOUIS FROM 1836 to 1882. 
1836-1882 
Mean' 
Values fc 
Day. 
>r each ! 
| Extrer 
ne Maxima an 
on each Day > 
d Minin 
of the Y 
ia observed 
posed 
Min. | 
Max. | 
1 Mean. 
j Min. I 
Year. 
| Max. 
Year. 
Jan. 1 
23.55 
36.77 
30.16 
_22.5 
1864 
68.0 
1876 
31.5 
2 
25.35 
37.97 
31.66 
— 13!o 
1879 
65.5 
1855 
31,3 
3 
25.54 
38.55 
32.04 
—15.5 
66.5 
1874, 1880 
31.0 
4 
23.95 
35.82 
29.88 
— 6.0 
63.5 
1880 
30.5 
5 
23.45 
39.22 
31.33 J 
— 8.5 
1864 
62 0 
1876 
24.36 
37.66 
31.01 
—13.1 
65A 
30.9 
6 
! 23.76 
37.63 
30.69 
— 9.0 
1879 
64.0 
1880 
30.0 
7 
22.33 
33.95 
28.14 
— 1.0 
1881 
64.0 
1839 
29.4 
8 
22.75 
34.61 
28.68 
— 6.0 
1877 
68.0 
1876 
29.0 
9 
22.65 
35.48 
29.06 
—18.0 
1875 
65.5 
“ 
29.0 
10 
22.67 
34.82 
28.74 
—11.0 
1881 
70.0 
1839 
22.83 
35.29 
29.06 
— 9.0 
66.3 
29.4 
11 
25.42 
39.20 
32.31 
— 1.0 
1881 
71.0 
1839 
12 
26.69 
39.27 
32.98 
— 2.0 
1852 
65.0 
1863 
30.2 
13 
24.61 
36.81 
30.71 
0.0 
u 
59.0 
u 
30.6 
14 
25.61 
38.11 
31.86 
—12.5 
1881 
64.0 
1848 
31.0 
15 
26.71 
39.67 
33.19 
— 2.5 
1875 
1847 
31.4 
25.80 
38.61 
32.21 
— 60 
65^0 
30.6 
16 
24.03 
36.27 
! 30.15 
2.0 
1841 
63.0 
1845 
31.8 
17 
21.09 
34.27 
27.68 
—11.0 
64.0 
1842 
32.0 
18 
21.65 
34.32 
27.98 
—12.5 
1857 
66.0 
32.0 
19 
23.63 
38.09 
30.86 
—12.0 
1852 
6L0 
1843 
32.0 
39.54 
33.68 
— 1.5 
1866 
64.0 
32.0 
23^64 
36.49 30.07 
— 7.0 
63.6 
31.9 
21 
25.97 
38.79 
32.38 
— 3.0 
1854 
67.0 
1843 
I 32.0 
22 
23.84 
39.19 
31.52 
— 2.5 
1857 
1858 
32.0 
23 
24.63 
38.36 
31.49 
.0.0 
1854 
62!o 
1864 
32.0 
24 
25.57 
39.64 
32.60 
2.0 
1873 
65.0 
. 1860 
32.2 
25 
27.26 
41.63 
34.44 
— 55 
1840 
65.0 
1864 
32.4 
25.45 
39.52 
32.48 
- 1.8 
64.2 
32.1 
