Average annual temperature is 16.9 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: 1.3 °C
Number of sunny days: 243 days
Number of rainy days: 122 days
Look at detailed online map of Rowland Heights
* Weather data for Rowland Heights 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) | 20.4 | 24.5 | 22.8 | 32.4 | 28.3 | 31.4 | 38.3 | 38.3 | 35.6 | 36.7 | 30.4 | 28.0 |
| Average daytime temperature (°C) | 15.6 | 17.5 | 16.4 | 22.9 | 22.5 | 25.0 | 33.5 | 31.9 | 28.3 | 28.6 | 24.5 | 20.7 |
| Average temperature (°C) | 10.5 | 10.8 | 11.3 | 15.1 | 16.3 | 18.4 | 23.8 | 23.6 | 21.2 | 20.2 | 16.7 | 14.1 |
| Average night temperature (°C) | 7.0 | 6.2 | 8.0 | 10.1 | 12.2 | 13.8 | 16.3 | 17.4 | 16.5 | 14.5 | 11.0 | 9.7 |
| Absolute minimum temperature (°C) | 2.6 | 1.7 | 1.3 | 5.7 | 8.7 | 11.3 | 13.1 | 14.7 | 13.8 | 10.0 | 7.6 | 6.2 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 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) | 6.5 | 8.2 | 7.4 | 10.4 | 9.5 | 10.6 | 12.5 | 11.2 | 9.3 | 9.9 | 8.9 | 7.6 |
| Precipitation (mm) | 315 | 128 | 249 | 5 | 16 | 6 | 0 | 82 | 88 | 4 | 41 | 86 |
| Sunny days | 14 | 15 | 10 | 24 | 19 | 18 | 31 | 26 | 18 | 25 | 21 | 22 |
| Rainy days | 17 | 13 | 21 | 6 | 12 | 12 | 0 | 5 | 12 | 6 | 9 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Rowland Heights during the most sunny months:
The largest precipitation sum in Rowland Heights is at