Average annual temperature is 15.8 °C
Absolute maximum temperature: 41.2 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 255 days
Number of rainy days: 101 days
Number of snow days: 9 days
Look at detailed online map of Guadalupe County
* Weather data for Guadalupe County 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) | 19.1 | 19.9 | 23.4 | 28.8 | 31.8 | 38.5 | 41.2 | 39.3 | 36.6 | 30.7 | 26.2 | 18.7 |
| Average daytime temperature (°C) | 10.9 | 13.0 | 16.8 | 23.1 | 27.1 | 31.6 | 36.7 | 34.3 | 30.1 | 23.7 | 17.1 | 10.9 |
| Average temperature (°C) | 4.6 | 5.2 | 9.5 | 14.5 | 19.3 | 24.4 | 29.3 | 27.3 | 23.3 | 16.0 | 9.8 | 5.1 |
| Average night temperature (°C) | 0.2 | -0.1 | 3.1 | 6.4 | 12.2 | 16.4 | 21.5 | 20.6 | 16.5 | 9.7 | 4.4 | 0.9 |
| Absolute minimum temperature (°C) | -7.8 | -10.4 | -4.1 | -2.2 | 7.8 | 10.6 | 16.5 | 16.6 | 11.4 | -4.1 | -5.1 | -5.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 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) | 8.0 | 8.8 | 9.7 | 11.7 | 11.5 | 12.6 | 12.4 | 11.7 | 10.7 | 10.0 | 8.4 | 7.9 |
| Precipitation (mm) | 8 | 16 | 13 | 6 | 55 | 28 | 13 | 13 | 16 | 11 | 26 | 78 |
| Sunny days | 23 | 20 | 23 | 25 | 13 | 21 | 18 | 17 | 21 | 25 | 23 | 26 |
| Rainy days | 5 | 5 | 7 | 5 | 18 | 9 | 13 | 14 | 9 | 5 | 7 | 4 |
| Snow days | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
The largest precipitation sum in Guadalupe County is at