Average annual temperature is 21.6 °C
Absolute maximum temperature: 42.7 °C
Absolute minimum temperature: 1.0 °C
Number of sunny days: 134 days
Number of rainy days: 231 days
Look at detailed online map of Sam Houston
* Weather data for Sam Houston 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 | 27.2 | 28.6 | 29.3 | 31.9 | 38.3 | 39.7 | 42.7 | 39.1 | 35.4 | 29.3 | 24.9 |
| Average daytime temperature (°C) | 18.4 | 20.2 | 23.3 | 24.3 | 28.6 | 34.1 | 36.8 | 39.1 | 34.5 | 27.4 | 20.5 | 18.8 |
| Average temperature (°C) | 13.7 | 14.7 | 18.3 | 19.3 | 23.6 | 28.0 | 30.3 | 32.0 | 28.3 | 21.6 | 15.6 | 13.1 |
| Average night temperature (°C) | 10.2 | 10.6 | 14.4 | 15.5 | 19.5 | 23.5 | 25.5 | 26.3 | 23.5 | 17.4 | 11.8 | 9.0 |
| Absolute minimum temperature (°C) | 1.3 | 1.0 | 2.9 | 10.2 | 13.3 | 19.3 | 22.8 | 23.1 | 19.3 | 8.0 | 3.9 | 2.4 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| 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) | 6.2 | 7.1 | 7.2 | 7.3 | 8.7 | 10.9 | 12.2 | 12.1 | 10.7 | 8.4 | 6.6 | 7.7 |
| Precipitation (mm) | 328 | 70 | 144 | 236 | 176 | 92 | 34 | 14 | 57 | 114 | 187 | 146 |
| Sunny days | 12 | 8 | 6 | 5 | 10 | 7 | 7 | 15 | 10 | 16 | 18 | 20 |
| Rainy days | 19 | 20 | 25 | 25 | 21 | 23 | 24 | 16 | 20 | 15 | 12 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Sam Houston during the most sunny months:
The largest precipitation sum in Sam Houston is at