Average annual temperature is 24.9 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: 3.2 °C
Number of sunny days: 202 days
Number of rainy days: 163 days
Look at detailed online map of Weslaco
* Weather data for Weslaco 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) | 30.5 | 35.1 | 37.1 | 33.1 | 34.3 | 41.6 | 39.5 | 40.7 | 40.0 | 37.3 | 32.2 | 28.8 |
| Average daytime temperature (°C) | 25.8 | 25.3 | 29.6 | 28.3 | 31.1 | 37.2 | 37.4 | 37.5 | 37.0 | 30.7 | 24.0 | 23.2 |
| Average temperature (°C) | 19.9 | 18.8 | 23.1 | 23.1 | 26.2 | 30.6 | 31.3 | 31.4 | 30.7 | 25.2 | 19.4 | 18.1 |
| Average night temperature (°C) | 16.0 | 14.5 | 18.9 | 19.2 | 22.3 | 25.8 | 26.9 | 26.9 | 26.3 | 21.4 | 16.0 | 14.0 |
| Absolute minimum temperature (°C) | 6.8 | 3.2 | 8.1 | 12.9 | 19.0 | 21.2 | 24.6 | 24.4 | 23.2 | 9.3 | 9.4 | 5.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.6 | 13.0 | 12.3 | 11.5 | 10.9 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.5 | 8.7 | 7.9 | 8.6 | 10.2 | 12.5 | 12.2 | 11.9 | 11.0 | 8.3 | 5.8 | 6.7 |
| Precipitation (mm) | 10 | 11 | 34 | 180 | 57 | 37 | 43 | 46 | 12 | 62 | 98 | 27 |
| Sunny days | 22 | 20 | 14 | 9 | 7 | 23 | 20 | 19 | 17 | 12 | 19 | 20 |
| Rainy days | 9 | 8 | 17 | 21 | 24 | 7 | 11 | 12 | 13 | 19 | 11 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Weslaco during the most sunny months:
The largest precipitation sum in Weslaco is at