Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 63.72% | π |
| Wednesday, May 2, 2001 | Waxing Gibbous | 74.35% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 83.69% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 91.22% | π |
| Saturday, May 5, 2001 | Full Moon | 96.55% | π |
| Sunday, May 6, 2001 | Full Moon | 99.45% | π |
| Monday, May 7, 2001 | Full Moon | 99.87% | π |
| Tuesday, May 8, 2001 | Full Moon | 97.96% | π |
| Wednesday, May 9, 2001 | Waning Gibbous | 93.98% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 88.26% | π |
| Friday, May 11, 2001 | Waning Gibbous | 81.15% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 73.01% | π |
| Sunday, May 13, 2001 | Last Quarter | 64.14% | π |
| Monday, May 14, 2001 | Last Quarter | 54.84% | π |
| Tuesday, May 15, 2001 | Last Quarter | 45.38% | π |
| Wednesday, May 16, 2001 | Last Quarter | 36.03% | π |
| Thursday, May 17, 2001 | Waning Crescent | 27.06% | π |
| Friday, May 18, 2001 | Waning Crescent | 18.79% | π |
| Saturday, May 19, 2001 | Waning Crescent | 11.56% | π |
| Sunday, May 20, 2001 | Waning Crescent | 5.77% | π |
| Monday, May 21, 2001 | New Moon | 1.81% | π |
| Tuesday, May 22, 2001 | New Moon | 0.06% | π |
| Wednesday, May 23, 2001 | New Moon | 0.79% | π |
| Thursday, May 24, 2001 | Waxing Crescent | 4.11% | π |
| Friday, May 25, 2001 | Waxing Crescent | 9.94% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 17.96% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 27.71% | π |
| Monday, May 28, 2001 | First Quarter | 38.59% | π |
| Tuesday, May 29, 2001 | First Quarter | 49.99% | π |
| Wednesday, May 30, 2001 | First Quarter | 61.27% | π |
| Thursday, May 31, 2001 | Waxing Gibbous | 71.88% | π |