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