Average annual temperature is 7.5 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -27.7 °C
Number of sunny days: 165 days
Number of rainy days: 149 days
Number of snow days: 51 days
Look at detailed online map of Hayward
* Weather data for Hayward 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) | 2.6 | 5.7 | 5.7 | 24.0 | 31.7 | 30.9 | 30.6 | 30.2 | 33.2 | 28.6 | 16.2 | 10.6 |
| Average daytime temperature (°C) | -3.8 | -2.0 | 1.5 | 9.0 | 21.6 | 26.6 | 25.4 | 25.5 | 22.4 | 12.8 | 5.3 | 3.4 |
| Average temperature (°C) | -6.8 | -7.1 | -3.0 | 3.6 | 14.6 | 20.1 | 20.1 | 20.1 | 17.5 | 9.1 | 1.1 | -0.4 |
| Average night temperature (°C) | -9.1 | -11.1 | -6.7 | -0.2 | 9.2 | 15.2 | 15.5 | 15.7 | 13.9 | 6.2 | -1.9 | -2.9 |
| Absolute minimum temperature (°C) | -23.8 | -27.7 | -13.9 | -9.1 | 0.7 | 6.8 | 10.6 | 10.6 | 5.5 | -5.9 | -14.8 | -11.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.6 | 15.0 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.0 | 7.1 | 6.6 | 6.7 | 10.9 | 12.5 | 12.2 | 10.8 | 8.1 | 6.1 | 5.3 | 4.0 |
| Precipitation (mm) | 65 | 55 | 58 | 169 | 45 | 104 | 73 | 64 | 158 | 92 | 9 | 44 |
| Sunny days | 16 | 15 | 12 | 9 | 17 | 16 | 5 | 17 | 8 | 13 | 22 | 15 |
| Rainy days | 3 | 4 | 4 | 16 | 14 | 14 | 26 | 14 | 22 | 18 | 7 | 7 |
| Snow days | 12 | 9 | 15 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 9 |
The best time to visit Hayward during the most sunny months:
Months with the longest average daylight duration in Hayward:
The largest precipitation sum in Hayward is at