| Jan | 6: , 12: , 20: , 28: |
| Feb | 4:, 11:, 19:, 27: |
| Mar | 5:, 13:, 21:, 28: |
| Apr | 4:, 11:, 20:, 26: |
| May | 3:, 11:, 19:, 26: |
| Jun | 2:, 10:, 17:, 24: |
| Jul | 1:, 9:, 17:, 23:, 31: |
| Aug | 8:, 15:, 22:, 30: |
| Sep | 6:, 13:, 20:, 28: |
| Oct | 6:, 12:, 20:, 28: |
| Nov | 4:, 11:, 19:, 27: |
| Dec | 4:, 10:, 18:, 26: |
Special Moon Events in 2021
- Super Full Moon: Apr 26
- Micro New Moon: May 11
- Super Full Moon: May 26
- Partial Lunar Eclipse visible in Pierre on May 26
- Blue Moon: Aug 22 (third Full Moon in a season with four Full Moons)
- Super New Moon: Nov 4
- Micro Full Moon: Nov 19
- Partial Lunar Eclipse visible in Pierre on Nov 19
- Super New Moon: Dec 4
- Micro Full Moon: Dec 18
- No Black Moon in 2021 (third New Moon in a season with four New Moons)