Average data for 10 years
1 December
Monday
+8°
+3°
2 December
Tuesday
+7°
+1°
3 December
Wednesday
+7°
0°
4 December
Thursday
+7°
+1°
5 December
Friday
+6°
+1°
6 December
Saturday
+5°
0°
7 December
Sunday
+5°
0°
8 December
Monday
+4°
−1°
9 December
Tuesday
+4°
−1°
10 December
Wednesday
+5°
0°
11 December
Thursday
+5°
0°
12 December
Friday
+5°
0°
13 December
Saturday
+4°
−1°
14 December
Sunday
+4°
−1°
15 December
Monday
+5°
0°
16 December
Tuesday
+5°
0°
17 December
Wednesday
+5°
0°
18 December
Thursday
+5°
0°
19 December
Friday
+3°
−2°
20 December
Saturday
+2°
−2°
21 December
Sunday
+4°
−2°
22 December
Monday
+5°
−1°
23 December
Tuesday
+5°
0°
24 December
Wednesday
+5°
0°
25 December
Thursday
+4°
−1°
26 December
Friday
+2°
−2°
27 December
Saturday
+4°
−1°
28 December
Sunday
+5°
−1°
29 December
Monday
+5°
0°
30 December
Tuesday
+4°
0°
31 December
Wednesday
+3°
−1°
Cities with similar weather in December
Hungary
Budapest
Austria
Vienna
Kyrgyzstan
Bishkek
Bulgaria
Sofia
Kazakhstan
Aktau
In December, the weather in Allentown is typically cold. Average daily high temperature in December is about 5 degrees above zero. On average, Allentown has 9 sunny, 9 partly cloudy, 7 rainy, 5 cloudy, and 1 snowy day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Allentown.