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