| Hijri Month | Starts On | Day of Week | Days in Month |
|---|---|---|---|
| Muharram 635 | 24-Aug-1237 | Monday | 29 days. |
| Safar 635 | 22-Sep-1237 | Tuesday | 30 days. |
| Rabi al-awwal 635 | 22-Oct-1237 | Thursday | 30 days. |
| Rabi al-thani 635 | 21-Nov-1237 | Saturday | 30 days. |
| Jumada al-awwal 635 | 21-Dec-1237 | Monday | 29 days. |
| Jumada al-thani 635 | 19-Jan-1238 | Tuesday | 30 days. |
| Rajab 635 | 18-Feb-1238 | Thursday | 29 days. |
| Shaban 635 | 19-Mar-1238 | Friday | 30 days. |
| Ramadan 635 | 18-Apr-1238 | Sunday | 29 days. |
| Shawwal 635 | 17-May-1238 | Monday | 29 days. |
| Dhu al-Qidah 635 | 15-Jun-1238 | Tuesday | 30 days. |
| Dhu al-Hijjah 635 | 15-Jul-1238 | Thursday | 29 days. |