Average annual temperature is 13.6 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -10.0 °C
Number of sunny days: 183 days
Number of rainy days: 180 days
Number of snow days: 2 days
Look at detailed online map of Sylmar
* Weather data for Sylmar 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) | 15.3 | 20.8 | 18.2 | 29.5 | 28.2 | 34.7 | 34.3 | 32.6 | 35.3 | 27.8 | 20.6 | 15.3 |
| Average daytime temperature (°C) | 8.5 | 9.9 | 11.2 | 19.8 | 22.2 | 26.6 | 30.1 | 28.9 | 25.3 | 20.1 | 11.9 | 9.2 |
| Average temperature (°C) | 4.9 | 4.9 | 5.9 | 13.7 | 16.0 | 20.6 | 24.8 | 23.8 | 20.4 | 14.8 | 7.0 | 5.3 |
| Average night temperature (°C) | 1.8 | 0.9 | 1.2 | 8.8 | 10.1 | 15.5 | 20.5 | 19.4 | 16.3 | 10.7 | 2.9 | 2.0 |
| Absolute minimum temperature (°C) | -4.1 | -10.0 | -4.9 | 1.6 | 3.9 | 10.7 | 17.9 | 15.5 | 10.9 | 5.1 | -5.0 | -3.2 |
| 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 | 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 | 14.7 | 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) | 4.8 | 6.8 | 7.6 | 9.5 | 11.3 | 10.8 | 11.9 | 10.5 | 8.3 | 8.6 | 7.6 | 4.9 |
| Precipitation (mm) | 115 | 53 | 81 | 139 | 32 | 96 | 163 | 104 | 139 | 69 | 71 | 192 |
| Sunny days | 12 | 16 | 15 | 16 | 19 | 11 | 9 | 14 | 13 | 18 | 23 | 17 |
| Rainy days | 19 | 10 | 16 | 14 | 12 | 19 | 22 | 17 | 17 | 13 | 7 | 14 |
| Snow days | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Sylmar during the most sunny months:
The largest precipitation sum in Sylmar is at