Average data for 10 years
1 January
Monday
+2°
−3°
2 January
Tuesday
+1°
0°
3 January
Wednesday
−3°
−4°
4 January
Thursday
+1°
−4°
5 January
Friday
+1°
−2°
6 January
Saturday
+2°
−2°
7 January
Sunday
+1°
−2°
8 January
Monday
+1°
−3°
9 January
Tuesday
0°
−2°
10 January
Wednesday
+2°
−2°
11 January
Thursday
+3°
0°
12 January
Friday
+4°
+2°
13 January
Saturday
+2°
+1°
14 January
Sunday
0°
−1°
15 January
Monday
0°
−3°
16 January
Tuesday
0°
−2°
17 January
Wednesday
0°
−3°
18 January
Thursday
+2°
0°
19 January
Friday
+1°
−1°
20 January
Saturday
+1°
0°
21 January
Sunday
−3°
−4°
22 January
Monday
−2°
−4°
23 January
Tuesday
−2°
−4°
24 January
Wednesday
−1°
−4°
25 January
Thursday
+1°
−4°
26 January
Friday
0°
−3°
27 January
Saturday
+1°
−1°
28 January
Sunday
0°
−3°
29 January
Monday
0°
−3°
30 January
Tuesday
+2°
−2°
31 January
Wednesday
+1°
−2°
Cities with similar weather in January
United States
New York
Finland
Helsinki
Latvia
Riga
Estonia
Tallinn
Sweden
Stockholm
January in Boston is the snowiest, the windiest, and the coldest month of the year. In January, the weather in Boston is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Boston has 14 partly cloudy, 11 sunny, 3 rainy, 2 snowy, and 1 cloudy day in January. The rains are usually heavy. January as well as February, March, and December is considered the most uncomfortable time to visit Boston.