Neptune Beach, FL frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 4 a year). Cover tender plants when frost is forecast.
How Neptune Beach compares
- In a typical year, frost nights in Neptune Beach fall between January 10 and January 31. In 1 year in 10 the first frost comes as early as December 16, or the last frost as late as March 2.
- Compared with Jacksonville, FL, 24 km away, the last frost here is 1 day earlier than there.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 1 |
| 50% (median) | January 31 |
| 10% (safe for tender plants) | March 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 16 |
| 50% (median) | January 10 |
| 90% (late) | February 14 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Neptune Beach, FL
Neptune Beach, FL frost dates — last frost Jan 31, first frost Jan 10, zone 9b. whenisthelastfrost.com
In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.
When to plant vegetables in Neptune Beach, FL
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 8 – Nov 22 | Jan 3 – Jan 17 | — | — |
| Peppers | Nov 22 – Dec 6 | Feb 14 – Feb 28 | — | — |
| Eggplant | Nov 22 – Dec 6 | Feb 14 – Feb 28 | — | — |
| Tomatoes | Dec 6 – Dec 20 | Feb 7 – Feb 21 | — | — |
| Lettuce | Dec 6 – Dec 20 | Jan 10 – Jan 24 | Jan 3 – Feb 7 | Nov 15 – Dec 13 |
| Kale | Dec 6 – Dec 20 | Jan 3 – Jan 17 | Jan 3 – Jan 17 | Nov 1 – Nov 22 |
| Broccoli | Dec 6 – Dec 20 | Jan 17 – Jan 31 | — | Oct 4 – Oct 25 |
| Cabbage | Dec 6 – Dec 20 | Jan 10 – Jan 24 | — | Oct 4 – Oct 25 |
| Cauliflower | Dec 6 – Dec 20 | Jan 17 – Jan 31 | — | Oct 4 – Oct 25 |
| Okra | Dec 20 – Jan 3 | Feb 21 – Mar 7 | Feb 21 – Mar 7 | — |
| Basil | Dec 20 – Jan 3 | Feb 7 – Feb 21 | — | — |
| Peas | — | — | Dec 20 – Jan 10 | Oct 18 – Nov 8 |
| Spinach | — | — | Dec 20 – Jan 10 | Nov 15 – Dec 6 |
| Radishes | — | — | Dec 27 – Feb 7 | Nov 29 – Dec 20 |
| Cucumbers | Jan 3 – Jan 10 | Feb 14 – Feb 21 | Feb 7 – Feb 21 | Oct 25 – Nov 8 |
| Zucchini & Summer Squash | Jan 3 – Jan 10 | — | Feb 7 – Feb 21 | Nov 1 – Nov 15 |
| Winter Squash & Pumpkins | Jan 3 – Jan 10 | — | Feb 7 – Feb 21 | — |
| Melons & Watermelon | Jan 3 – Jan 10 | Feb 14 – Feb 28 | — | — |
| Carrots | — | — | Jan 10 – Feb 7 | Oct 18 – Nov 1 |
| Beets | — | — | Jan 10 – Feb 7 | Nov 1 – Nov 15 |
| Potatoes | — | — | Jan 10 – Jan 31 | — |
| Swiss Chard | — | — | Jan 17 – Feb 14 | Nov 1 – Nov 15 |
| Cilantro | — | — | Jan 17 – Feb 7 | Nov 15 – Dec 6 |
| Green Beans | — | — | Feb 7 – Feb 28 | Oct 25 – Nov 8 |
| Sweet Corn | — | — | Feb 7 – Feb 21 | — |
| Sweet Potatoes | — | Feb 14 – Mar 7 | — | — |
| Garlic | — | — | — | Dec 27 – Jan 31 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Jacksonville Beach, FL weather station, 3 km away (elevation 10 ft (3 m)).
Frost dates near Neptune Beach
- Jacksonville Beach Jan 31 · Jan 10
- Atlantic Beach Feb 1 · Jan 5
- Ponte Vedra Beach Jan 31 · Jan 10
- Ponte Vedra Jan 31 · Jan 10
- Jacksonville Feb 1 · Jan 5
- Saint Johns Feb 1 · Jan 5
- Orange Park Feb 1 · Jan 5
- Yulee Feb 2 · Jan 4
- Fleming Island Feb 1 · Jan 5
- Fernandina Beach Feb 2 · Jan 4
Frequently asked questions
When is the last frost in Neptune Beach, FL?
The median last spring frost in Neptune Beach, FL is January 31. There is still about a 10% chance of frost after March 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Neptune Beach, FL?
The median first fall frost is January 10, with about a 10% chance of frost before December 16.
How long is the growing season in Neptune Beach, FL?
About 344 days between the median last spring frost and first fall frost.
What planting zone is Neptune Beach, FL?
Neptune Beach, FL is in USDA hardiness zone 9b.