Average data for 10 years
1 January
Wednesday
+4°
−1°
2 January
Thursday
+3°
−1°
3 January
Friday
+3°
−1°
4 January
Saturday
+4°
−1°
5 January
Sunday
+3°
−2°
6 January
Monday
+3°
−2°
7 January
Tuesday
+2°
−2°
8 January
Wednesday
+1°
−3°
9 January
Thursday
+3°
−2°
10 January
Friday
+3°
−2°
11 January
Saturday
+3°
−3°
12 January
Sunday
+4°
−1°
13 January
Monday
+5°
0°
14 January
Tuesday
+3°
−2°
15 January
Wednesday
+2°
−4°
16 January
Thursday
+2°
−3°
17 January
Friday
+1°
−4°
18 January
Saturday
+1°
−3°
19 January
Sunday
+2°
−4°
20 January
Monday
+1°
−2°
21 January
Tuesday
0°
−5°
22 January
Wednesday
0°
−6°
23 January
Thursday
+1°
−4°
24 January
Friday
+2°
−3°
25 January
Saturday
+2°
−3°
26 January
Sunday
+1°
−4°
27 January
Monday
+2°
−3°
28 January
Tuesday
+2°
−3°
29 January
Wednesday
+1°
−4°
30 January
Thursday
+2°
−4°
31 January
today
+1°
−4°
Cities with similar weather in January
Czech Republic
Karlovy Vary
Poland
Warsaw
Kazakhstan
Aktau
Poland
Gdansk
United States
Boston
January in Allentown is the snowiest and the coldest month of the year. In January, the weather in Allentown is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Allentown has 10 partly cloudy, 9 sunny, 5 cloudy, 4 rainy, and 3 snowy days in January. The rains are usually heavy. January as well as February, March, April, and November is considered the most uncomfortable time to visit Allentown.