Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 57.56% | π |
| Wednesday, May 2, 2001 | First Quarter | 68.64% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 78.75% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 87.34% | π |
| Saturday, May 5, 2001 | Waxing Gibbous | 93.92% | π |
| Sunday, May 6, 2001 | Full Moon | 98.16% | π |
| Monday, May 7, 2001 | Full Moon | 99.94% | π |
| Tuesday, May 8, 2001 | Full Moon | 99.29% | π |
| Wednesday, May 9, 2001 | Full Moon | 96.4% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 91.59% | π |
| Friday, May 11, 2001 | Waning Gibbous | 85.2% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 77.59% | π |
| Sunday, May 13, 2001 | Last Quarter | 69.08% | π |
| Monday, May 14, 2001 | Last Quarter | 59.98% | π |
| Tuesday, May 15, 2001 | Last Quarter | 50.58% | π |
| Wednesday, May 16, 2001 | Last Quarter | 41.13% | π |
| Thursday, May 17, 2001 | Last Quarter | 31.91% | π |
| Friday, May 18, 2001 | Waning Crescent | 23.22% | π |
| Saturday, May 19, 2001 | Waning Crescent | 15.38% | π |
| Sunday, May 20, 2001 | Waning Crescent | 8.75% | π |
| Monday, May 21, 2001 | New Moon | 3.73% | π |
| Tuesday, May 22, 2001 | New Moon | 0.73% | π |
| Wednesday, May 23, 2001 | New Moon | 0.07% | π |
| Thursday, May 24, 2001 | New Moon | 1.97% | π |
| Friday, May 25, 2001 | Waxing Crescent | 6.44% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 13.31% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 22.18% | π |
| Monday, May 28, 2001 | First Quarter | 32.52% | π |
| Tuesday, May 29, 2001 | First Quarter | 43.71% | π |
| Wednesday, May 30, 2001 | First Quarter | 55.13% | π |
| Thursday, May 31, 2001 | First Quarter | 66.18% | π |