Average data for 10 years
1 December
Sunday
+5°
+2°
2 December
Monday
+4°
+3°
3 December
Tuesday
+4°
+2°
4 December
Wednesday
+3°
+1°
5 December
Thursday
+3°
+1°
6 December
Friday
+2°
0°
7 December
Saturday
+2°
0°
8 December
Sunday
+2°
0°
9 December
Monday
+1°
0°
10 December
Tuesday
+2°
+2°
11 December
Wednesday
+3°
+2°
12 December
Thursday
+4°
+2°
13 December
Friday
+2°
0°
14 December
Saturday
+1°
0°
15 December
Sunday
+1°
0°
16 December
Monday
+1°
+1°
17 December
Tuesday
+4°
+2°
18 December
Wednesday
+3°
+1°
19 December
Thursday
+5°
+3°
20 December
Friday
+5°
+3°
21 December
Saturday
+2°
+1°
22 December
Sunday
+3°
+1°
23 December
Monday
+2°
−1°
24 December
Tuesday
+2°
0°
25 December
Wednesday
+1°
0°
26 December
Thursday
+2°
+2°
27 December
Friday
+4°
+3°
28 December
Saturday
+3°
+1°
29 December
Sunday
+2°
0°
30 December
Monday
+3°
−2°
31 December
Tuesday
+3°
−2°
Cities with similar weather in December
Germany
Berlin
Germany
Hamburg
Denmark
Copenhagen
Switzerland
Geneva
Slovenia
Ljubljana
December in Hermiston is the coldest month of the year. In December, the weather in Hermiston is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Hermiston has 13 cloudy, 9 rainy, 5 partly cloudy, and 4 sunny days in December. The rains are usually light. December as well as January and March is considered the most uncomfortable time to visit Hermiston.