Average annual temperature is 19 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -2.5 °C
Number of sunny days: 171
Number of rainy days: 194
Number of snow days:
Average annual precipitation: 1244 mm
Look at detailed online map of Allentown
* Weather data for Allentown United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 23 | 27.2 | 29.1 | 30.9 | 32.7 | 35.3 | 37.6 | 38.7 | 33.6 | 29.1 | 25.5 | 23.2 |
| Average daytime temperature (°C) | 16.7 | 20.2 | 21.9 | 25.2 | 27.5 | 30.8 | 34.7 | 34 | 29.1 | 24 | 18.9 | 15.4 |
| Average temperature (°C) | 11.2 | 14.6 | 15.6 | 18.7 | 21.4 | 24.9 | 28.1 | 27.8 | 23.4 | 18.3 | 13.2 | 10.2 |
| Average night temperature (°C) | 7.1 | 10.3 | 10.4 | 13.3 | 16.4 | 19.9 | 23.2 | 23.1 | 18.6 | 13.5 | 8.9 | 6.4 |
| Absolute minimum temperature (°C) | -2.5 | -0.6 | -1.6 | 7.4 | 9 | 16.4 | 21.1 | 20 | 14.4 | 7.5 | -0.9 | -1.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.6 | 11.5 | 12.5 | 13.4 | 14.1 | 14.3 | 14.3 | 13.7 | 12.9 | 11.9 | 10.9 | 10.2 |
| Daylight mean duration (h) | 10.3 | 11 | 12 | 13 | 13.8 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.1 | 10.6 | 11.5 | 12.5 | 13.5 | 14.2 | 13.8 | 12.9 | 11.9 | 10.9 | 10.2 | 10 |
| Sunshine mean duration (h) | 7 | 8 | 8.4 | 10.3 | 10.6 | 11 | 11.3 | 11.4 | 10.2 | 9.9 | 8 | 7 |
| Precipitation (mm) | 202 | 92 | 104 | 115 | 50 | 208 | 101 | 99 | 47 | 77 | 56 | 93 |
| Sunny days | 16 | 13 | 16 | 11 | 10 | 9 | 6 | 7 | 16 | 25 | 20 | 22 |
| Rainy days | 15 | 15 | 15 | 19 | 21 | 21 | 25 | 24 | 14 | 6 | 10 | 9 |
The largest precipitation sum in Allentown is at