Frost dates for 33472 — Boynton Beach, FL
Frost is light and occasional here — typically a few cold nights around midwinter (about 0 a year). Cover tender plants when frost is forecast.
How Boynton Beach compares
- In a typical year, frost nights in Boynton Beach fall between January 17 and January 22. In 1 year in 10 the first frost comes as early as December 31, or the last frost as late as February 7.
- Nearby Boca Raton, FL, 20 km away, rarely gets frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 31 |
| 50% (median) | January 22 |
| 10% (safe for tender plants) | February 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 31 |
| 50% (median) | January 17 |
| 90% (late) | February 5 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Boynton Beach, FL only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Loxahatchee Nwr, FL weather station, 5 km away (elevation 20 ft (6 m)).
ZIP codes in Boynton Beach: 33424 33425 33426 33435 33436 33437 33472 33473 33474
Frost dates near Boynton Beach
- Lake Worth rare frost
- Greenacres rare frost
- Delray Beach Jan 22 · Jan 17
- Wellington rare frost
- Royal Palm Beach rare frost
- Boca Raton rare frost
- West Palm Beach rare frost
- Loxahatchee Jan 21 · Jan 15
Frequently asked questions
When is the last frost in Boynton Beach, FL?
The median last spring frost in Boynton Beach, FL is January 22. There is still about a 10% chance of frost after February 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Boynton Beach, FL?
The median first fall frost is January 17, with about a 10% chance of frost before December 31.
How long is the growing season in Boynton Beach, FL?
About 360 days between the median last spring frost and first fall frost.
What planting zone is Boynton Beach, FL?
Boynton Beach, FL is in USDA hardiness zone 10b.