Weather in Allentown: December
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Average day temperature: | 39.6°F |
| Average night temperature: | 31.6°F | |
 |
Number of sunny days: | 11 days |
| Day length: | 9.3 - 9.5 hours | |
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Number of days with precipitation: | 3 days |
| Precipitation totals: | 1.1 in. | |
| more information | ||
14 days
forecast
forecast
| Allentown |
weather in
January
January
| Allentown |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 50°F. At the same time the lowest night temperature was 14°F. Daily and nightly averages during December were 35.8°F and 28.3°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in Allentown in December is 1.1 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 7.2 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.9.
Best time for vacation in Allentown
Allentown on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Allentown
Local time: 22:18
January 10, saturday
0000
45°F
E
6 mph
6 mph
0300
41°F
S
9 mph
9 mph
0600
37°F
S
4 mph
4 mph
0900
36°F
S
2 mph
2 mph
1200
36°F
W
5 mph
5 mph
1500
37°F
W
9 mph
9 mph
1800
37°F
SW
7 mph
7 mph
2100
34°F
SW
4 mph
4 mph
