Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 64.04% | π |
| Wednesday, May 2, 2001 | Waxing Gibbous | 74.63% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 83.93% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 91.41% | π |
| Saturday, May 5, 2001 | Full Moon | 96.67% | π |
| Sunday, May 6, 2001 | Full Moon | 99.49% | π |
| Monday, May 7, 2001 | Full Moon | 99.85% | π |
| Tuesday, May 8, 2001 | Full Moon | 97.88% | π |
| Wednesday, May 9, 2001 | Waning Gibbous | 93.84% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 88.07% | π |
| Friday, May 11, 2001 | Waning Gibbous | 80.93% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 72.76% | π |
| Sunday, May 13, 2001 | Last Quarter | 63.88% | π |
| Monday, May 14, 2001 | Last Quarter | 54.57% | π |
| Tuesday, May 15, 2001 | Last Quarter | 45.11% | π |
| Wednesday, May 16, 2001 | Last Quarter | 35.76% | π |
| Thursday, May 17, 2001 | Waning Crescent | 26.81% | π |
| Friday, May 18, 2001 | Waning Crescent | 18.56% | π |
| Saturday, May 19, 2001 | Waning Crescent | 11.38% | π |
| Sunday, May 20, 2001 | Waning Crescent | 5.63% | π |
| Monday, May 21, 2001 | New Moon | 1.73% | π |
| Tuesday, May 22, 2001 | New Moon | 0.05% | π |
| Wednesday, May 23, 2001 | New Moon | 0.85% | π |
| Thursday, May 24, 2001 | Waxing Crescent | 4.24% | π |
| Friday, May 25, 2001 | Waxing Crescent | 10.14% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 18.22% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 28.01% | π |
| Monday, May 28, 2001 | First Quarter | 38.91% | π |
| Tuesday, May 29, 2001 | First Quarter | 50.31% | π |
| Wednesday, May 30, 2001 | First Quarter | 61.59% | π |
| Thursday, May 31, 2001 | Waxing Gibbous | 72.17% | π |