Average annual temperature is 21.6 °C
Absolute maximum temperature: 45.8 °C
Absolute minimum temperature: -3.8 °C
Number of sunny days: 308 days
Number of rainy days: 57 days
Look at detailed online map of City of Barstow
* Weather data for City of Barstow 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) | 26.5 | 32.5 | 33.2 | 36.1 | 38.1 | 45.8 | 43.5 | 43.9 | 41.0 | 35.2 | 33.2 | 27.0 |
| Average daytime temperature (°C) | 18.1 | 19.5 | 26.0 | 29.2 | 33.4 | 39.7 | 39.7 | 38.7 | 37.1 | 29.1 | 20.6 | 18.7 |
| Average temperature (°C) | 10.3 | 10.4 | 16.6 | 20.4 | 25.7 | 32.3 | 33.3 | 32.5 | 30.0 | 21.8 | 13.7 | 11.0 |
| Average night temperature (°C) | 3.7 | 4.3 | 9.5 | 13.2 | 18.5 | 24.1 | 26.5 | 25.9 | 23.0 | 15.6 | 8.3 | 4.8 |
| Absolute minimum temperature (°C) | -3.8 | -3.4 | 2.0 | 6.7 | 13.9 | 17.6 | 23.4 | 20.9 | 19.6 | 1.1 | 1.4 | -2.6 |
| 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) | 10.4 | 11.1 | 12.0 | 12.9 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.6 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.4 | 8.4 | 9.7 | 11.3 | 11.3 | 12.8 | 12.9 | 11.6 | 11.1 | 9.3 | 7.8 | 8.7 |
| Precipitation (mm) | 18 | 7 | 0 | 1 | 16 | 2 | 0 | 8 | 1 | 14 | 11 | 7 |
| Sunny days | 30 | 22 | 28 | 27 | 20 | 28 | 29 | 24 | 27 | 23 | 24 | 26 |
| Rainy days | 1 | 6 | 3 | 3 | 11 | 2 | 2 | 7 | 3 | 8 | 6 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Barstow during the most sunny months:
The largest precipitation sum in City of Barstow is at