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