408 — 
Tabella I. 
Medie decadiche delle temperature minima , massima e media degli Osservatoci 
di Milano , Roma e Siracusa nel venticinquennio 1886-1910. 
MESE 
Decade 
MILANO 
ROMA 
SIRACUSA 
minimo 
massimo 
media 
minimo 
massimo 
media 
minimo 
massimo 
media 
Gennaio . 
la 
— 3.8 
7.5 
1.1 
— 0.4 
13.6 
6.5 
5.3 
16.3 
10.4 
2 a 
— 4.9 
8.7 
0.9 
— 0.7 
13.6 
6.0 
5.1 
16.1 
10.2 
3* 
— 4.5 
9.8 
1.5 
0.0 
13.7 
6.7 
4.2 
15.7 
10.3 
Febbraio. 
]a 
— 3.1 
10.6 
2.7 
0.2 
14.3 
7.7 
4.9 
16.6 
10.5 
2 a 
— 2.3 
11.9 
3.8 
0.0 
15.0 
7.1 
4.2 
16.6 
10.3 
3 a 
— 1.1 
12.5 
4.7 
1.6 
15 6 
8.7 
6.2 
17.3 
11.3 
Marzo. 
la 
0.2 
15.1 
6.4 
1.4 
16.5 
8.9 
5.6 
17.3 
11.2 
2 a 
1.1 
17.5 
82 
2.8 
17.9 
10.6 
6.0 
19.4 
12.5 
3 a 
2.7 
19.4 
9.8 
3.7 
19.1 
11.4 
6.8 
20.0 
12.9 
Aprile. 
1* 
3.8 
21.1 
11.5 
5.2 
19.7 
12.3 
7.8 
20.0 
135 
2 a 
5.2 
22.6 
12.8 
5.2 
21.1 
13.4 
8.3 
21.9 
14.4 
3 a 
7.0 
24.6 
14.5 
7.1 
22 7 
15.0 
9.6 
22.8 
15.6 
Maggio. 
l a 
7.8 
25.5 
15.6 
8.3 
24.0 
15.9 
10.5 
24.3 
16.5 
2 a 
8.8 
27.9 
17 3 
9.5 
25 9 
17.5 
11.8 
25.6 
17.7 
3 a 
10.1 
29 9 
19.0 
10 8 
27.7 
19.2 
13.1 
27.1 
19.3 
Giugno . 
l a 
13.0 
81.1 
21.3 
13.2 
29.3 
21.2 
14.5 
29.0 
20.5 
2 a 
13.1 
31.2 
21.1 
13.5 
28.6 
21.0 
15.9 
29.3 
21.8 
3 a 
13.7 
32.8 
23.0 
15.2 
31,0 
22.9 
17.2 
31.4 
23.4 
Luglio. 
l a 
15.1 
33.6 
23.6 
15.6 
31.8 
23.8 
18.5 
33.1 
24.8 
2 a 
15.5 
33.8 
24.0 
16.1 
33.0 
24.4 
19.0 
33.5 
25.1 
3 a 
15.9 
34.0 
24.4 
16.9 
33.4 
25.1 
20.2 
34.2 
25.7 
Agosto. 
l a 
15.8 
32.9 
23.9 
16.6 
32.7 
24.8 
203 
34.0 
25.9 
2 a 
15.4 
32 5 
23.6 
16.2 
32.5 
24.3 
20.1 
33.8 
25.8 
3 a 
14.1 
30 9 
22.4 
15.2 
31.9 
23.3 
19.2 
32 5 
25.1 
Settembre. 
l a 
13.8 
30.0 
20.7 
148 
30.5 
22.8 
19.1 
32.0 
24.6 
2 a 
11.9 
27.5 
19.1 
13.0 
29.1 
21.0 
17 2 
30.4 
23.5 
3 a 
11.1 
25.1 
17.6 
12.2 
26.4 
19.4 
16.7 
28.8 
22.2 
Ottobre. 
l a 
9.3 
23.3 
16 1 
11.7 
25.7 
19.0 
15.9 
27.4 
21.5 
2 a 
6.1 
20.4 
13.1 
8.4 
23.8 
16.4 
13.9 
26.7 
19.9 
3 a 
4.7 
17.6 
10.6 
7.1 
22.1 
15.0 
12.3 
24.0 
18.1 
Novembre. 
l a 
3.8 
15.3 
9.4 
6.7 
20.3 
13.6 
11.2 
23.1 
17.1 
2 a 
1.7 
13.3 
6.5 
4.3 
18.6 
11.7 
9.6 
21.5 
15.5 
3 a 
— 1.0 
11.2 
4.4 
2.0 
16.2 
9.2 
8.2 
19.5 
13.4 
Dicembre . .... 
l a 
— 1.0 
10.3 
3.9 
1 7 
15.6 
8.9 
7.2 
18.6 
13.0 
2 a 
— 2.5 
9.1 
2.8 
0.8 
14.8 
8.0 
6.3 
17.2 
12 3 
3 a 
— 3.5 
7.9 
1.8 
0.4 
14.2 
7.3 
6.0 
17 0 
11.7 
