Average annual temperature is 23.8 °C
Absolute maximum temperature: 43.1 °C
Absolute minimum temperature: 1.4 °C
Number of sunny days: 205 days
Number of rainy days: 160 days
Look at detailed online map of McMullen County
* Weather data for McMullen 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) | 31.9 | 33.9 | 35.8 | 36.0 | 33.7 | 43.1 | 41.7 | 43.1 | 40.8 | 34.6 | 31.2 | 27.2 |
| Average daytime temperature (°C) | 23.2 | 24.3 | 29.0 | 27.9 | 30.6 | 38.7 | 39.2 | 39.7 | 37.8 | 29.3 | 22.4 | 21.8 |
| Average temperature (°C) | 16.6 | 16.8 | 21.5 | 21.8 | 25.2 | 31.3 | 32.2 | 32.4 | 31.3 | 23.7 | 17.5 | 15.5 |
| Average night temperature (°C) | 11.5 | 11.7 | 16.6 | 17.4 | 20.9 | 25.1 | 26.4 | 26.5 | 25.9 | 19.7 | 13.6 | 10.5 |
| Absolute minimum temperature (°C) | 1.5 | 1.4 | 6.9 | 12.2 | 16.3 | 20.7 | 23.9 | 24.0 | 24.1 | 7.8 | 5.0 | 3.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.6 | 11.2 | 12.0 | 12.9 | 13.6 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.7 | 10.4 |
| 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) | 7.1 | 7.9 | 7.2 | 8.0 | 9.4 | 12.7 | 12.4 | 11.8 | 11.1 | 8.4 | 6.2 | 7.6 |
| Precipitation (mm) | 74 | 20 | 59 | 131 | 183 | 21 | 12 | 55 | 23 | 118 | 41 | 18 |
| Sunny days | 20 | 16 | 7 | 9 | 6 | 22 | 20 | 26 | 20 | 18 | 18 | 23 |
| Rainy days | 11 | 12 | 24 | 21 | 25 | 8 | 11 | 5 | 10 | 13 | 12 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit McMullen County during the most sunny months:
The largest precipitation sum in McMullen County is at