NOAA 1991–2020 freeze normals
Frost Dates in Puerto Rico
Last and first frost at the 26 NOAA stations behind this site's Puerto Rico pages.
None of the 26 stations gets a 32°F night in at least half of winters; 26 recorded no freeze at all in 1991–2020.
Puerto Rico places by frost date
| Place | ZIP | Last frost | First frost | Season | Winters with 32°F |
|---|---|---|---|---|---|
| San Juan | 00926 | — | — | — | 0% |
| Caguas | 00725 | — | — | — | 0% |
| Bayamon | 00956 | — | — | — | 0% |
| Arecibo | 00612 | — | — | — | 0% |
| Trujillo Alto | 00976 | — | — | — | 0% |
| Vega Baja | 00693 | — | — | — | 0% |
| Carolina | 00987 | — | — | — | 0% |
| Aguadilla | 00603 | — | — | — | 0% |
| San Juan | 00924 | — | — | — | 0% |
| Rio Grande | 00745 | — | — | — | 0% |
| Humacao | 00791 | — | — | — | 0% |
| Cayey | 00736 | — | — | — | 0% |
| Juana Diaz | 00795 | — | — | — | 0% |
| Mayaguez | 00680 | — | — | — | 0% |
| Isabela | 00662 | — | — | — | 0% |
| Manati | 00674 | — | — | — | 0% |
| Cabo Rojo | 00623 | — | — | — | 0% |
| Aguada | 00602 | — | — | — | 0% |
| Dorado | 00646 | — | — | — | 0% |
| Guayama | 00784 | — | — | — | 0% |
| Yauco | 00698 | — | — | — | 0% |
| Fajardo | 00738 | — | — | — | 0% |
| Utuado | 00641 | — | — | — | 0% |
| Sabana Grande | 00637 | — | — | — | 0% |
| Salinas | 00751 | — | — | — | 0% |
| Guanica | 00653 | — | — | — | 0% |
50% dates from NOAA NCEI U.S. Climate Normals 1991–2020, one row per station; a state page is published when at least 5 stations stand behind its pages. Where a freeze comes in fewer than nine winters in ten, the dates describe the winters that have one.