| Station | Spring | Summer | Fall | Winter |
| Tehran | Increasing (99%) | Increasing (99%) | Increasing (99%) | Increasing (99%) |
| Semnan | No meaning | No meaning | Decreasing (95%) | No meaning |
| Isfahan | Increasing (99%) | Increasing (99%) | Increasing (99%) | Decreasing (95%) |
| Arak | No meaning | No meaning | No meaning | No meaning |
| Qom | No meaning | No meaning | Increasing (95%) | No meaning |