The dollar opened the year at 5,049 Toman and closed at 13,102 Toman — up about 159.50% over the year. The year's high was 17,539 Toman in September–October 2018, the low 4,410 Toman in March–April 2018.
| Period | Open | High | Low | Close |
|---|---|---|---|---|
| Mar-Apr 2018 | 5,049 | 5,660 | 4,410 | 4,410 |
| Apr-May 2018 | 5,623 | 6,414 | 5,623 | 6,414 |
| May-Jun 2018 | 6,364 | 7,491 | 6,364 | 7,491 |
| Jun-Jul 2018 | 8,358 | 8,358 | 7,946 | 8,134 |
| Jul-Aug 2018 | 9,316 | 10,577 | 9,316 | 10,414 |
| Aug-Sep 2018 | 11,011 | 14,588 | 11,011 | 14,588 |
| Sep-Oct 2018 | 17,539 | 17,539 | 12,510 | 12,510 |
| Oct-Nov 2018 | 14,039 | 14,039 | 11,920 | 12,771 |
| Nov-Dec 2018 | 12,110 | 12,110 | 9,990 | 9,990 |
| Dec 2018 – Jan 2019 | 10,750 | 11,630 | 10,600 | 11,630 |
| Jan-Feb 2019 | 11,830 | 12,350 | 11,830 | 12,350 |
| Feb-Mar 2019 | 13,300 | 13,300 | 13,102 | 13,102 |
