Average annual temperature is 19.7 °C
Absolute maximum temperature: 42.8 °C
Absolute minimum temperature: -4.0 °C
Number of sunny days: 192 days
Number of rainy days: 173 days
Look at detailed online map of City of Allen
* Weather data for City of Allen United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 24.7 | 27.1 | 26.9 | 30.9 | 33.6 | 37.9 | 39.3 | 42.8 | 40.7 | 32.3 | 27.9 | 24.2 |
| Average daytime temperature (°C) | 15.1 | 16.1 | 20.0 | 22.5 | 27.7 | 32.7 | 35.4 | 39.0 | 33.2 | 25.1 | 18.4 | 15.4 |
| Average temperature (°C) | 10.0 | 9.9 | 14.5 | 17.1 | 22.5 | 27.1 | 30.0 | 33.2 | 27.8 | 19.9 | 13.4 | 10.1 |
| Average night temperature (°C) | 6.0 | 5.8 | 10.4 | 12.5 | 18.2 | 22.3 | 25.2 | 27.4 | 22.9 | 15.7 | 9.1 | 6.0 |
| Absolute minimum temperature (°C) | -3.9 | -4.0 | -0.5 | 7.3 | 11.3 | 17.9 | 21.3 | 21.9 | 19.4 | 0.5 | -0.7 | -1.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.7 | 6.3 | 7.8 | 8.1 | 9.0 | 10.8 | 11.4 | 12.1 | 10.0 | 8.1 | 7.6 | 7.4 |
| Precipitation (mm) | 94 | 133 | 235 | 138 | 168 | 161 | 114 | 7 | 63 | 251 | 72 | 73 |
| Sunny days | 21 | 13 | 12 | 12 | 12 | 8 | 15 | 26 | 13 | 18 | 21 | 21 |
| Rainy days | 10 | 15 | 19 | 18 | 19 | 22 | 16 | 5 | 17 | 13 | 9 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Allen during the most sunny months:
The largest precipitation sum in City of Allen is at