Average annual temperature is 12.2 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -11.3 °C
Number of sunny days: 146 days
Number of rainy days: 211 days
Number of snow days: 8 days
Look at detailed online map of Katy
* Weather data for Katy 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) | 17.9 | 21.3 | 22.4 | 28.7 | 28.3 | 31.7 | 31.5 | 31.0 | 30.8 | 26.4 | 19.7 | 17.2 |
| Average daytime temperature (°C) | 8.6 | 11.8 | 11.7 | 19.3 | 21.7 | 25.6 | 28.3 | 26.6 | 23.6 | 18.2 | 12.0 | 9.3 |
| Average temperature (°C) | 3.8 | 5.1 | 5.3 | 12.1 | 15.1 | 19.2 | 22.5 | 21.1 | 18.2 | 13.0 | 6.0 | 4.6 |
| Average night temperature (°C) | 0.4 | 0.3 | 0.5 | 5.9 | 9.2 | 13.4 | 18.1 | 16.6 | 13.7 | 8.8 | 1.5 | 1.1 |
| Absolute minimum temperature (°C) | -6.0 | -11.3 | -8.8 | -0.9 | 2.0 | 9.0 | 14.4 | 11.0 | 8.4 | 0.3 | -7.6 | -6.1 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.3 | 6.7 | 6.7 | 8.5 | 9.9 | 11.2 | 11.2 | 10.5 | 9.0 | 6.9 | 7.0 | 4.9 |
| Precipitation (mm) | 102 | 80 | 103 | 43 | 79 | 119 | 141 | 176 | 72 | 91 | 47 | 76 |
| Sunny days | 8 | 12 | 11 | 14 | 17 | 12 | 5 | 8 | 12 | 13 | 20 | 14 |
| Rainy days | 21 | 13 | 18 | 16 | 14 | 18 | 26 | 23 | 18 | 18 | 10 | 16 |
| Snow days | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Katy during the most sunny months:
The largest precipitation sum in Katy is at