Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 63.39% | π |
| Wednesday, May 2, 2001 | Waxing Gibbous | 74.04% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 83.43% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 91.02% | π |
| Saturday, May 5, 2001 | Full Moon | 96.42% | π |
| Sunday, May 6, 2001 | Full Moon | 99.4% | π |
| Monday, May 7, 2001 | Full Moon | 99.9% | π |
| Tuesday, May 8, 2001 | Full Moon | 98.05% | π |
| Wednesday, May 9, 2001 | Waning Gibbous | 94.13% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 88.45% | π |
| Friday, May 11, 2001 | Waning Gibbous | 81.38% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 73.27% | π |
| Sunday, May 13, 2001 | Last Quarter | 64.42% | π |
| Monday, May 14, 2001 | Last Quarter | 55.13% | π |
| Tuesday, May 15, 2001 | Last Quarter | 45.67% | π |
| Wednesday, May 16, 2001 | Last Quarter | 36.31% | π |
| Thursday, May 17, 2001 | Waning Crescent | 27.32% | π |
| Friday, May 18, 2001 | Waning Crescent | 19.02% | π |
| Saturday, May 19, 2001 | Waning Crescent | 11.76% | π |
| Sunday, May 20, 2001 | Waning Crescent | 5.92% | π |
| Monday, May 21, 2001 | New Moon | 1.9% | π |
| Tuesday, May 22, 2001 | New Moon | 0.08% | π |
| Wednesday, May 23, 2001 | New Moon | 0.73% | π |
| Thursday, May 24, 2001 | Waxing Crescent | 3.97% | π |
| Friday, May 25, 2001 | Waxing Crescent | 9.73% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 17.69% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 27.39% | π |
| Monday, May 28, 2001 | First Quarter | 38.25% | π |
| Tuesday, May 29, 2001 | First Quarter | 49.64% | π |
| Wednesday, May 30, 2001 | First Quarter | 60.94% | π |
| Thursday, May 31, 2001 | Waxing Gibbous | 71.57% | π |