| Clue | Source | Date |
|---|---|---|
| Easter falls on the first Sunday after the full moon following which Northern Hemisphere event? (6.7) | ||
| Beginning of spring | Newsday | 16 Jun 2022 |
| Spring date of equal day and night | The Telegraph Quick | 18 May 2018 |
| Beginning of spring | Eugene Sheffer | 27 Jan 2018 |
| Spring opener | The Washington Post | 06 Feb 2016 |
| Beginning of spring | ||
| Spring time | ||
| It occurs a little over six weeks after Groundhog Day | ||
| Timely season starter? | ||
| Spring start | ||
| Spring beginning | ||
| March 20, in 23 Across | ||
| March event | ||
| March 20 | ||
| March 21, 1955: 4:36 A. M. | ||
| Phenomenon of March 21. |