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