Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 61.39% | π |
| Wednesday, May 2, 2001 | Waxing Gibbous | 72.21% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 81.86% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 89.81% | π |
| Saturday, May 5, 2001 | Waxing Gibbous | 95.63% | π |
| Sunday, May 6, 2001 | Full Moon | 99.05% | π |
| Monday, May 7, 2001 | Full Moon | 99.98% | π |
| Tuesday, May 8, 2001 | Full Moon | 98.55% | π |
| Wednesday, May 9, 2001 | Waning Gibbous | 94.97% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 89.59% | π |
| Friday, May 11, 2001 | Waning Gibbous | 82.74% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 74.78% | π |
| Sunday, May 13, 2001 | Last Quarter | 66.04% | π |
| Monday, May 14, 2001 | Last Quarter | 56.81% | π |
| Tuesday, May 15, 2001 | Last Quarter | 47.36% | π |
| Wednesday, May 16, 2001 | Last Quarter | 37.97% | π |
| Thursday, May 17, 2001 | Waning Crescent | 28.89% | π |
| Friday, May 18, 2001 | Waning Crescent | 20.45% | π |
| Saturday, May 19, 2001 | Waning Crescent | 12.97% | π |
| Sunday, May 20, 2001 | Waning Crescent | 6.85% | π |
| Monday, May 21, 2001 | New Moon | 2.47% | π |
| Tuesday, May 22, 2001 | New Moon | 0.23% | π |
| Wednesday, May 23, 2001 | New Moon | 0.42% | π |
| Thursday, May 24, 2001 | New Moon | 3.2% | π |
| Friday, May 25, 2001 | Waxing Crescent | 8.52% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 16.12% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 25.55% | π |
| Monday, May 28, 2001 | First Quarter | 36.25% | π |
| Tuesday, May 29, 2001 | First Quarter | 47.58% | π |
| Wednesday, May 30, 2001 | First Quarter | 58.95% | π |
| Thursday, May 31, 2001 | Waxing Gibbous | 69.74% | π |