7 cities · avg annual temperature 13.2°C
| City | Population | Avg temp | Since 1900 |
|---|---|---|---|
| Niigata | 505,272 | 13.7°C | +2.7° |
| Joetsu | 204,137 | 12.7°C | +2.7° |
| Nagaoka | 195,318 | 12.9°C | +2.9° |
| Kashiwazaki | 86,183 | 13.3°C | +2.8° |
| Sanjo | 82,893 | 13.5°C | +2.8° |
| Shibata | 80,793 | 12.8°C | +2.8° |
| Niitsu-honcho | 65,910 | 13.7°C | +2.7° |