Average annual temperature is 11.9 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: -15.8 °C
Number of sunny days: 129 days
Number of rainy days: 212 days
Number of snow days: 24 days
Look at detailed online map of Shirasawamachi-iwamuro
* Weather data for Shirasawamachi-iwamuro 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) | 13.4 | 14.4 | 18.8 | 23.4 | 27.8 | 28.0 | 32.9 | 33.1 | 31.7 | 22.9 | 22.1 | 18.3 |
| Average daytime temperature (°C) | 4.7 | 6.1 | 12.9 | 16.4 | 19.7 | 23.3 | 29.0 | 30.0 | 26.9 | 18.2 | 13.6 | 9.3 |
| Average temperature (°C) | -1.0 | 0.6 | 6.7 | 10.0 | 14.0 | 18.8 | 23.6 | 24.8 | 22.2 | 12.4 | 7.4 | 2.6 |
| Average night temperature (°C) | -5.2 | -3.1 | 1.3 | 4.1 | 8.5 | 14.8 | 18.3 | 20.5 | 18.1 | 7.7 | 2.4 | -1.9 |
| Absolute minimum temperature (°C) | -15.8 | -7.9 | -5.8 | -4.2 | -1.1 | 6.4 | 14.3 | 16.6 | 10.9 | 2.5 | -4.2 | -6.1 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 6.8 | 7.6 | 8.4 | 9.1 | 9.1 | 8.0 | 10.3 | 10.5 | 8.8 | 8.8 | 7.6 | 7.6 |
| Precipitation (mm) | 47 | 51 | 97 | 72 | 156 | 227 | 140 | 99 | 152 | 73 | 58 | 58 |
| Sunny days | 11 | 11 | 14 | 15 | 13 | 8 | 5 | 4 | 5 | 15 | 13 | 15 |
| Rainy days | 7 | 11 | 17 | 15 | 18 | 22 | 26 | 27 | 25 | 16 | 17 | 11 |
| Snow days | 13 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The largest precipitation sum in Shirasawamachi-iwamuro is at