| 100% | STPAT | 5 | Figure celebrated on March 17, informally: 2 wds. |
| 82% | STPAT | 5 | Figure celebrated on March 17, for short: 2 wds., abbr. |
| 50% | ERIN | 4 | Land celebrated on March 17 |
| 47% | PATRICK | 7 | Irish saint whose day is celebrated on March 17 |
| 45% | ROBKARDASHIAN | 13 | Reality TV star who turned 30 on March 17, 2017 (2 wds.) |
| 45% | CHICAGORIVER | 12 | Midwest body of water traditionally dyed green on March 17 in honor of 40-Across (2 wds.) |
| 44% | STPAT | 5 | March 17 honoree, for short: 2 wds. |
| 43% | IRISH | 5 | Nationality celebrated on a March 17 holiday |
| 42% | SAINTPATRICK | 12 | Missionary known as the "Apostle of Ireland" who has been honored in the United States on March 17 since 1601 (2 wds.) |
| 42% | STPAT | 5 | Irish figure who's the focus of March 17, familiarly: 2 wds., abbr. |
| 41% | NEWYEAR | 7 | It's celebrated on the evening of December 31: 2 wds. |
| 41% | DANIELCRAIG | 11 | "Skyfall" actor who turned 50 on March 2, 2018 (2 wds.) |
| 39% | STPATS | 6 | Celebration every March 17, for short (2 wds.) |
| 37% | IRISH | 5 | Partiers on March 17 |
| 37% | PATRICK | 7 | Saint celebrated on March 17th |
| 36% | PIPED | 5 | Played on March 17, perhaps |
| 36% | SNOWANGEL | 9 | Figure formed on winter days by lying on the ground and moving all four limbs: 2 wds. |
| 36% | CLOVERS | 7 | Symbols much seen on March 17 |
| 36% | STPAT | 5 | March 17 honoree, informally |
| 35% | NOWRUZ | 6 | Iranian New Year, celebrated on March 21, 2022 |
| 35% | OREO | 4 | Cookie that's officially celebrated on March 6 |
| 35% | IRISH | 5 | Like everyone on March 17, it's said |
| 34% | EDSHEERAN | 9 | "Perfect" singer collaborating on 17-Across: 2 wds. |
| 34% | PBJ | 3 | Sandwich celebrated on April 2 |
| 33% | CANDLEMASDAY | 12 | Christian observance celebrated on Feb. 2 |
| 33% | AUTISM | 6 | Neurodevelopmental disorder celebrated on April 2 |
| 33% | PARADE | 6 | March, perhaps on March 17 |
| 33% | SAMBA | 5 | Dance celebrated on Dec. 2 in Brazil |
| 33% | APOP | 4 | Each, informally: 2 wds. |
| 32% | GROUNDHOG | 9 | ___ Day (rodent-themed holiday celebrated on February 2) |