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% Probability of Indicated Temperature or Lower on or After Date |
|||||
| 90% | 75% | 50% | 25% | 10% | |
| 36 | May 1 | May 9 | May 22 | June 1 | June 9 |
| 32 | April 16 | April 20 | May 5 | May 13 | May 18 |
| 28 | March 23 | April 7 | April 14 | April 22 | May 6 |
| 24 | March 4 | March 16 | March 30 | April 11 | April 21 |
| 20 | Feb. 3 | Feb. 16 | March 4 | March 18 | March 29 |