Moon Calendar for May, 2001
| Date | Moon Phase | Illumination | Moon Icon |
|---|---|---|---|
| Tuesday, May 1, 2001 | First Quarter | 65.08% | π |
| Wednesday, May 2, 2001 | Waxing Gibbous | 75.58% | π |
| Thursday, May 3, 2001 | Waxing Gibbous | 84.72% | π |
| Friday, May 4, 2001 | Waxing Gibbous | 92% | π |
| Saturday, May 5, 2001 | Full Moon | 97.04% | π |
| Sunday, May 6, 2001 | Full Moon | 99.63% | π |
| Monday, May 7, 2001 | Full Moon | 99.76% | π |
| Tuesday, May 8, 2001 | Full Moon | 97.58% | π |
| Wednesday, May 9, 2001 | Waning Gibbous | 93.36% | π |
| Thursday, May 10, 2001 | Waning Gibbous | 87.45% | π |
| Friday, May 11, 2001 | Waning Gibbous | 80.2% | π |
| Saturday, May 12, 2001 | Waning Gibbous | 71.95% | π |
| Sunday, May 13, 2001 | Last Quarter | 63.01% | π |
| Monday, May 14, 2001 | Last Quarter | 53.68% | π |
| Tuesday, May 15, 2001 | Last Quarter | 44.22% | π |
| Wednesday, May 16, 2001 | Last Quarter | 34.89% | π |
| Thursday, May 17, 2001 | Waning Crescent | 25.99% | π |
| Friday, May 18, 2001 | Waning Crescent | 17.83% | π |
| Saturday, May 19, 2001 | Waning Crescent | 10.76% | π |
| Sunday, May 20, 2001 | Waning Crescent | 5.18% | π |
| Monday, May 21, 2001 | New Moon | 1.47% | π |
| Tuesday, May 22, 2001 | New Moon | 0.01% | π |
| Wednesday, May 23, 2001 | New Moon | 1.06% | π |
| Thursday, May 24, 2001 | Waxing Crescent | 4.7% | π |
| Friday, May 25, 2001 | Waxing Crescent | 10.82% | π |
| Saturday, May 26, 2001 | Waxing Crescent | 19.08% | π |
| Sunday, May 27, 2001 | Waxing Crescent | 29% | π |
| Monday, May 28, 2001 | First Quarter | 39.98% | π |
| Tuesday, May 29, 2001 | First Quarter | 51.39% | π |
| Wednesday, May 30, 2001 | First Quarter | 62.63% | π |
| Thursday, May 31, 2001 | Waxing Gibbous | 73.11% | π |