Average annual temperature is 13.8 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -7.6 °C
Number of sunny days: 133 days
Number of rainy days: 223 days
Number of snow days: 9 days
Look at detailed online map of Gero-shi
* Weather data for Gero-shi 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 | 13.3 | 22.0 | 26.7 | 29.4 | 28.7 | 34.7 | 35.0 | 32.0 | 24.9 | 22.6 | 18.6 |
| Average daytime temperature (°C) | 6.8 | 8.1 | 15.1 | 17.7 | 21.7 | 25.1 | 30.0 | 31.0 | 28.2 | 20.0 | 15.0 | 9.7 |
| Average temperature (°C) | 1.8 | 3.1 | 9.1 | 12.1 | 16.2 | 20.3 | 24.7 | 25.3 | 23.3 | 14.4 | 10.1 | 4.9 |
| Average night temperature (°C) | -1.9 | -0.9 | 4.2 | 7.2 | 11.7 | 16.3 | 20.4 | 21.0 | 19.4 | 10.3 | 6.4 | 1.1 |
| Absolute minimum temperature (°C) | -7.6 | -5.9 | -2.6 | 1.6 | 5.6 | 11.2 | 16.4 | 17.3 | 12.6 | 5.8 | -2.4 | -3.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.7 | 7.2 | 8.6 | 8.1 | 8.8 | 7.7 | 9.7 | 10.2 | 9.5 | 8.6 | 7.5 | 6.5 |
| Precipitation (mm) | 48 | 70 | 159 | 253 | 312 | 388 | 287 | 170 | 164 | 76 | 160 | 115 |
| Sunny days | 15 | 13 | 14 | 12 | 11 | 8 | 7 | 4 | 7 | 17 | 14 | 11 |
| Rainy days | 11 | 14 | 17 | 18 | 20 | 22 | 24 | 27 | 23 | 14 | 16 | 17 |
| Snow days | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Gero-shi is at