Patterson, LA frost dates
Last spring frostJan 30median date
First fall frostJan 1median date
Growing season336 daysfrost-free
Hardiness zone9bZone 9b
Frost is light and occasional here — typically a few cold nights around midwinter (about 7 a year). Cover tender plants when frost is forecast.
How Patterson compares
- In a typical year, frost nights in Patterson fall between January 1 and January 30. In 1 year in 10 the first frost comes as early as December 2, or the last frost as late as March 5.
- Nearby Baton Rouge, LA, 88 km away, has a regular frost season (last frost Feb 25), a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 30 |
| 50% (median) | January 30 |
| 10% (safe for tender plants) | March 5 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 2 |
| 50% (median) | January 1 |
| 90% (late) | February 2 |
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 Patterson, LA
Patterson, LA frost dates — last frost Jan 30, first frost Jan 1, 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.
Crop
JFMAMJJASOND
Start indoors: Nov 7 to Nov 21Transplant outside: Jan 2 to Jan 16
Start indoors: Nov 21 to Dec 5Transplant outside: Feb 13 to Feb 27
Start indoors: Nov 21 to Dec 5Transplant outside: Feb 13 to Feb 27
Start indoors: Dec 5 to Dec 19Transplant outside: Feb 6 to Feb 20
Start indoors: Dec 5 to Dec 19Transplant outside: Jan 9 to Jan 23Sow outdoors: Jan 2 to Feb 6Plant for fall: Nov 6 to Dec 4
Start indoors: Dec 5 to Dec 19Transplant outside: Jan 2 to Jan 16Sow outdoors: Jan 2 to Jan 16Plant for fall: Oct 23 to Nov 13
Start indoors: Dec 5 to Dec 19Transplant outside: Jan 16 to Jan 30Plant for fall: Sep 25 to Oct 16
Start indoors: Dec 5 to Dec 19Transplant outside: Jan 9 to Jan 23Plant for fall: Sep 25 to Oct 16
Start indoors: Dec 5 to Dec 19Transplant outside: Jan 16 to Jan 30Plant for fall: Sep 25 to Oct 16
Start indoors: Dec 19 to Jan 2Start indoors: Dec 19 to Jan 2Transplant outside: Feb 20 to Mar 6Sow outdoors: Feb 20 to Mar 6
Start indoors: Dec 19 to Jan 2Start indoors: Dec 19 to Jan 2Transplant outside: Feb 6 to Feb 20
Sow outdoors: Dec 19 to Jan 9Sow outdoors: Dec 19 to Jan 9Plant for fall: Oct 9 to Oct 30
Sow outdoors: Dec 19 to Jan 9Sow outdoors: Dec 19 to Jan 9Plant for fall: Nov 6 to Nov 27
Sow outdoors: Dec 26 to Feb 6Sow outdoors: Dec 26 to Feb 6Plant for fall: Nov 20 to Dec 11
Start indoors: Jan 2 to Jan 9Transplant outside: Feb 13 to Feb 20Sow outdoors: Feb 6 to Feb 20Plant for fall: Oct 16 to Oct 30
Start indoors: Jan 2 to Jan 9Sow outdoors: Feb 6 to Feb 20Plant for fall: Oct 23 to Nov 6
Start indoors: Jan 2 to Jan 9Sow outdoors: Feb 6 to Feb 20
Start indoors: Jan 2 to Jan 9Transplant outside: Feb 13 to Feb 27
Sow outdoors: Jan 9 to Feb 6Plant for fall: Oct 9 to Oct 23
Sow outdoors: Jan 9 to Feb 6Plant for fall: Oct 23 to Nov 6
Sow outdoors: Jan 9 to Jan 30
Sow outdoors: Jan 16 to Feb 13Plant for fall: Oct 23 to Nov 6
Sow outdoors: Jan 16 to Feb 6Plant for fall: Nov 6 to Nov 27
Sow outdoors: Feb 6 to Feb 27Plant for fall: Oct 16 to Oct 30
Sow outdoors: Feb 6 to Feb 20
Transplant outside: Feb 13 to Mar 6
Plant for fall: Dec 18 to Jan 22Plant for fall: Dec 18 to Jan 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Patterson, LA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 7 – Nov 21 | Jan 2 – Jan 16 | — | — |
| Peppers | Nov 21 – Dec 5 | Feb 13 – Feb 27 | — | — |
| Eggplant | Nov 21 – Dec 5 | Feb 13 – Feb 27 | — | — |
| Tomatoes | Dec 5 – Dec 19 | Feb 6 – Feb 20 | — | — |
| Lettuce | Dec 5 – Dec 19 | Jan 9 – Jan 23 | Jan 2 – Feb 6 | Nov 6 – Dec 4 |
| Kale | Dec 5 – Dec 19 | Jan 2 – Jan 16 | Jan 2 – Jan 16 | Oct 23 – Nov 13 |
| Broccoli | Dec 5 – Dec 19 | Jan 16 – Jan 30 | — | Sep 25 – Oct 16 |
| Cabbage | Dec 5 – Dec 19 | Jan 9 – Jan 23 | — | Sep 25 – Oct 16 |
| Cauliflower | Dec 5 – Dec 19 | Jan 16 – Jan 30 | — | Sep 25 – Oct 16 |
| Okra | Dec 19 – Jan 2 | Feb 20 – Mar 6 | Feb 20 – Mar 6 | — |
| Basil | Dec 19 – Jan 2 | Feb 6 – Feb 20 | — | — |
| Peas | — | — | Dec 19 – Jan 9 | Oct 9 – Oct 30 |
| Spinach | — | — | Dec 19 – Jan 9 | Nov 6 – Nov 27 |
| Radishes | — | — | Dec 26 – Feb 6 | Nov 20 – Dec 11 |
| Cucumbers | Jan 2 – Jan 9 | Feb 13 – Feb 20 | Feb 6 – Feb 20 | Oct 16 – Oct 30 |
| Zucchini & Summer Squash | Jan 2 – Jan 9 | — | Feb 6 – Feb 20 | Oct 23 – Nov 6 |
| Winter Squash & Pumpkins | Jan 2 – Jan 9 | — | Feb 6 – Feb 20 | — |
| Melons & Watermelon | Jan 2 – Jan 9 | Feb 13 – Feb 27 | — | — |
| Carrots | — | — | Jan 9 – Feb 6 | Oct 9 – Oct 23 |
| Beets | — | — | Jan 9 – Feb 6 | Oct 23 – Nov 6 |
| Potatoes | — | — | Jan 9 – Jan 30 | — |
| Swiss Chard | — | — | Jan 16 – Feb 13 | Oct 23 – Nov 6 |
| Cilantro | — | — | Jan 16 – Feb 6 | Nov 6 – Nov 27 |
| Green Beans | — | — | Feb 6 – Feb 27 | Oct 16 – Oct 30 |
| Sweet Corn | — | — | Feb 6 – Feb 20 | — |
| Sweet Potatoes | — | Feb 13 – Mar 6 | — | — |
| Garlic | — | — | — | Dec 18 – Jan 22 |
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 Morgan City, LA weather station, 10 km away (elevation 7 ft (2 m)).
Frost dates near Patterson
- Morgan City Jan 30 · Jan 1
- Berwick Jan 30 · Jan 1
- Centerville Feb 11 · Dec 8
- Amelia Jan 30 · Jan 1
- Garden City Feb 11 · Dec 8
- Franklin Feb 11 · Dec 8
- Pierre Part Feb 21 · Dec 5
- Gibson Feb 5 · Dec 17
- Baldwin Feb 11 · Dec 8
- Charenton Feb 11 · Dec 8
Frequently asked questions
When is the last frost in Patterson, LA?
The median last spring frost in Patterson, LA is January 30. There is still about a 10% chance of frost after March 5, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Patterson, LA?
The median first fall frost is January 1, with about a 10% chance of frost before December 2.
How long is the growing season in Patterson, LA?
About 336 days between the median last spring frost and first fall frost.
What planting zone is Patterson, LA?
Patterson, LA is in USDA hardiness zone 9b.