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