Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 55.99% | π |
| Wednesday, May 2, 2001 | First Quarter | 67.16% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 77.44% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 86.27% | π |
| Saturday, May 5, 2001 | Waxing Gibbous | 93.15% | π |
| Sunday, May 6, 2001 | Full Moon | 97.73% | π |
| Monday, May 7, 2001 | Full Moon | 99.84% | π |
| Tuesday, May 8, 2001 | Full Moon | 99.51% | π |
| Wednesday, May 9, 2001 | Full Moon | 96.92% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 92.36% | π |
| Friday, May 11, 2001 | Waning Gibbous | 86.16% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 78.69% | π |
| Sunday, May 13, 2001 | Waning Gibbous | 70.29% | π |
| Monday, May 14, 2001 | Last Quarter | 61.25% | π |
| Tuesday, May 15, 2001 | Last Quarter | 51.88% | π |
| Wednesday, May 16, 2001 | Last Quarter | 42.42% | π |
| Thursday, May 17, 2001 | Last Quarter | 33.15% | π |
| Friday, May 18, 2001 | Waning Crescent | 24.37% | π |
| Saturday, May 19, 2001 | Waning Crescent | 16.39% | π |
| Sunday, May 20, 2001 | Waning Crescent | 9.57% | π |
| Monday, May 21, 2001 | Waning Crescent | 4.31% | π |
| Tuesday, May 22, 2001 | New Moon | 1.01% | π |
| Wednesday, May 23, 2001 | New Moon | 0.01% | π |
| Thursday, May 24, 2001 | New Moon | 1.55% | π |
| Friday, May 25, 2001 | Waxing Crescent | 5.68% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 12.24% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 20.86% | π |
| Monday, May 28, 2001 | First Quarter | 31.03% | π |
| Tuesday, May 29, 2001 | First Quarter | 42.14% | π |
| Wednesday, May 30, 2001 | First Quarter | 53.57% | π |
| Thursday, May 31, 2001 | First Quarter | 64.7% | π |