Frost dates for 33478 — Jupiter, FL
Frost is light and occasional here — typically a few cold nights around midwinter (about 1 a year). Cover tender plants when frost is forecast.
How Jupiter compares
- In a typical year, frost nights in Jupiter fall between January 15 and January 21. In 1 year in 10 the first frost comes as early as December 25, or the last frost as late as February 12.
- Nearby West Palm Beach, FL, 26 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 29 |
| 50% (median) | January 21 |
| 10% (safe for tender plants) | February 12 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 25 |
| 50% (median) | January 15 |
| 90% (late) | February 9 |
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
Jupiter, 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 Palm Beach Gardens, FL weather station, 12 km away (elevation 20 ft (6 m)).
ZIP codes in Jupiter: 33458 33468 33469 33477 33478
Frost dates near Jupiter
- Palm Beach Gardens Jan 21 · Jan 15
- Hobe Sound Jan 26 · Jan 15
- North Palm Beach Jan 26 · Jan 16
- Loxahatchee Jan 21 · Jan 15
- Royal Palm Beach rare frost
- Port Salerno Jan 23 · Jan 18
- West Palm Beach rare frost
- Palm City Jan 23 · Jan 18
Frequently asked questions
When is the last frost in Jupiter, FL?
The median last spring frost in Jupiter, FL is January 21. There is still about a 10% chance of frost after February 12, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Jupiter, FL?
The median first fall frost is January 15, with about a 10% chance of frost before December 25.
How long is the growing season in Jupiter, FL?
About 359 days between the median last spring frost and first fall frost.
What planting zone is Jupiter, FL?
Jupiter, FL is in USDA hardiness zone 10b.