Average data for 10 years
1 December
Monday
−5°
−8°
2 December
Tuesday
−4°
−7°
3 December
Wednesday
−3°
−6°
4 December
Thursday
−4°
−7°
5 December
Friday
−5°
−7°
6 December
Saturday
−4°
−7°
7 December
Sunday
−4°
−7°
8 December
Monday
−4°
−7°
9 December
Tuesday
−4°
−7°
10 December
Wednesday
−4°
−7°
11 December
Thursday
−4°
−7°
12 December
Friday
−3°
−8°
13 December
Saturday
−4°
−9°
14 December
Sunday
−6°
−10°
15 December
Monday
−6°
−10°
16 December
Tuesday
−5°
−9°
17 December
Wednesday
−5°
−8°
18 December
Thursday
−6°
−10°
19 December
Friday
−5°
−10°
20 December
Saturday
−4°
−9°
21 December
Sunday
−6°
−11°
22 December
Monday
−7°
−12°
23 December
Tuesday
−8°
−12°
24 December
Wednesday
−8°
−11°
25 December
Thursday
−8°
−12°
26 December
Friday
−7°
−11°
27 December
Saturday
−7°
−11°
28 December
Sunday
−7°
−11°
29 December
Monday
−7°
−11°
30 December
Tuesday
−6°
−9°
31 December
Wednesday
−5°
−9°
In December, the weather in Ostrov is typically freezing. Average daily high temperature in December is about 5 degrees below zero. On average, Ostrov has 19 cloudy, 10 snowy, 1 sunny, and 1 partly cloudy day in December. The snowfalls are usually moderate.