Average annual temperature is 9.8 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -14.2 °C
Number of sunny days: 127 days
Number of rainy days: 198 days
Number of snow days: 40 days
Look at detailed online map of Hiroo Chō
* Weather data for Hiroo Chō Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.3 | 6.6 | 15.3 | 16.8 | 23.8 | 27.2 | 31.4 | 33.3 | 29.2 | 23.2 | 18.6 | 12.0 |
| Average daytime temperature (°C) | -2.1 | -0.8 | 6.5 | 11.9 | 16.5 | 21.4 | 26.0 | 26.9 | 23.8 | 16.4 | 10.2 | 1.9 |
| Average temperature (°C) | -5.5 | -3.5 | 3.2 | 8.2 | 12.5 | 17.7 | 22.2 | 23.7 | 20.3 | 12.7 | 6.8 | -1.4 |
| Average night temperature (°C) | -8.5 | -6.5 | 0.1 | 5.2 | 9.3 | 14.8 | 19.3 | 21.3 | 17.8 | 9.7 | 3.5 | -4.4 |
| Absolute minimum temperature (°C) | -14.1 | -14.2 | -4.6 | -0.4 | 2.2 | 7.4 | 14.5 | 15.4 | 12.0 | 3.5 | -4.8 | -10.9 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.2 | 8.3 | 8.2 | 9.5 | 8.7 | 9.5 | 7.4 | 7.0 | 8.1 | 6.6 | 6.4 |
| Precipitation (mm) | 52 | 89 | 122 | 209 | 106 | 106 | 84 | 219 | 229 | 155 | 189 | 71 |
| Sunny days | 16 | 12 | 15 | 10 | 7 | 8 | 10 | 4 | 5 | 12 | 12 | 16 |
| Rainy days | 2 | 2 | 11 | 20 | 24 | 22 | 21 | 27 | 25 | 19 | 18 | 7 |
| Snow days | 13 | 14 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
The largest precipitation sum in Hiroo Chō is at