Annual Weather Averages Near Allentown
Averages are for Lehigh Valley International Airport, which is 6 kilometers from Allentown.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Allentown
High Temp: 30 °C
Low Temp: -6 °C
Mean Temp: 11 °C
Precipitation: 100.9 mm
Humidity: 67%
Dew Point: 5 °C
Wind: 18 km/h
Pressure: 1018 mbar
Visibility: 14 km
一月 Climate & Weather Averages in Allentown
High Temp: 3 °C
Low Temp: -6 °C
Mean Temp: -1 °C
Precipitation: 82.5 mm
Humidity: 67%
Dew Point: -7 °C
Wind: 20 km/h
Pressure: 1019 mbar
Visibility: 14 km
二月 Climate & Weather Averages in Allentown
High Temp: 5 °C
Low Temp: -5 °C
Mean Temp: 0 °C
Precipitation: 73.8 mm
Humidity: 63%
Dew Point: -7 °C
Wind: 21 km/h
Pressure: 1019 mbar
Visibility: 14 km
三月 Climate & Weather Averages in Allentown
High Temp: 10 °C
Low Temp: -1 °C
Mean Temp: 4 °C
Precipitation: 92.1 mm
Humidity: 59%
Dew Point: -3 °C
Wind: 22 km/h
Pressure: 1018 mbar
Visibility: 15 km
四月 Climate & Weather Averages in Allentown
High Temp: 17 °C
Low Temp: 4 °C
Mean Temp: 10 °C
Precipitation: 91.2 mm
Humidity: 58%
Dew Point: 2 °C
Wind: 21 km/h
Pressure: 1016 mbar
Visibility: 15 km
五月 Climate & Weather Averages in Allentown
High Temp: 22 °C
Low Temp: 10 °C
Mean Temp: 16 °C
Precipitation: 94.2 mm
Humidity: 65%
Dew Point: 9 °C
Wind: 18 km/h
Pressure: 1016 mbar
Visibility: 15 km
六月 Climate & Weather Averages in Allentown
High Temp: 27 °C
Low Temp: 15 °C
Mean Temp: 21 °C
Precipitation: 114.1 mm
Humidity: 68%
Dew Point: 15 °C
Wind: 16 km/h
Pressure: 1015 mbar
Visibility: 14 km
七月 Climate & Weather Averages in Allentown
High Temp: 30 °C
Low Temp: 18 °C
Mean Temp: 24 °C
Precipitation: 134.3 mm
Humidity: 68%
Dew Point: 18 °C
Wind: 14 km/h
Pressure: 1015 mbar
Visibility: 14 km
八月 Climate & Weather Averages in Allentown
High Temp: 29 °C
Low Temp: 17 °C
Mean Temp: 23 °C
Precipitation: 118.6 mm
Humidity: 71%
Dew Point: 17 °C
Wind: 12 km/h
Pressure: 1016 mbar
Visibility: 14 km
九月 Climate & Weather Averages in Allentown
High Temp: 25 °C
Low Temp: 13 °C
Mean Temp: 19 °C
Precipitation: 126.6 mm
Humidity: 72%
Dew Point: 13 °C
Wind: 14 km/h
Pressure: 1018 mbar
Visibility: 15 km
十月 Climate & Weather Averages in Allentown
High Temp: 18 °C
Low Temp: 6 °C
Mean Temp: 12 °C
Precipitation: 106.7 mm
Humidity: 71%
Dew Point: 7 °C
Wind: 16 km/h
Pressure: 1019 mbar
Visibility: 15 km
十一月 Climate & Weather Averages in Allentown
High Temp: 12 °C
Low Temp: 0 °C
Mean Temp: 6 °C
Precipitation: 82.0 mm
Humidity: 68%
Dew Point: 0 °C
Wind: 17 km/h
Pressure: 1020 mbar
Visibility: 15 km
十二月 Climate & Weather Averages in Allentown
High Temp: 6 °C
Low Temp: -3 °C
Mean Temp: 1 °C
Precipitation: 95.1 mm
Humidity: 70%
Dew Point: -4 °C
Wind: 18 km/h
Pressure: 1019 mbar
Visibility: 14 km