Frost dates for 70402 — Hammond, LA
Last spring frostMar 8median date
First fall frostNov 19median date
Growing season256 daysfrost-free
Hardiness zone9aZone 9a
How Hammond compares
- In 8 years out of 10, the last spring frost in Hammond falls between February 12 and March 31, a 47-day window. The first fall frost falls between November 3 and December 8.
- The median last frost is 5 days later than the Louisiana median of Mar 3.
- Its 256-day growing season is longer than 34% of the 388 Louisiana places with a regular frost season (state median 266 days).
- The last frost is 5 days later than the zone 9a median of Mar 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9a chart.
- The weather station records an average of 31 nights a year at or below 32°F.
- Compared with Baton Rouge, LA, 60 km away, the last frost here is 11 days later than there and the growing season is 18 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 12 |
| 50% (median) | March 8 |
| 10% (safe for tender plants) | March 31 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 3 |
| 50% (median) | November 19 |
| 90% (late) | December 8 |
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 Hammond, LA
Frost dates for 70402 — Hammond, LA — last frost Mar 8, first frost Nov 19, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 14 to Dec 28Transplant outside: Feb 8 to Feb 22
Start indoors: Dec 28 to Jan 11Start indoors: Dec 28 to Jan 11Transplant outside: Mar 22 to Apr 5
Start indoors: Dec 28 to Jan 11Start indoors: Dec 28 to Jan 11Transplant outside: Mar 22 to Apr 5
Start indoors: Jan 11 to Jan 25Transplant outside: Mar 15 to Mar 29
Start indoors: Jan 11 to Jan 25Transplant outside: Feb 15 to Mar 1Sow outdoors: Feb 8 to Mar 15Plant for fall: Sep 24 to Oct 22
Start indoors: Jan 11 to Jan 25Transplant outside: Feb 8 to Feb 22Sow outdoors: Feb 8 to Feb 22Plant for fall: Sep 10 to Oct 1
Start indoors: Jan 11 to Jan 25Transplant outside: Feb 22 to Mar 8Plant for fall: Aug 13 to Sep 3
Start indoors: Jan 11 to Jan 25Transplant outside: Feb 15 to Mar 1Plant for fall: Aug 13 to Sep 3
Start indoors: Jan 11 to Jan 25Transplant outside: Feb 22 to Mar 8Plant for fall: Aug 13 to Sep 3
Start indoors: Jan 25 to Feb 8Transplant outside: Mar 29 to Apr 12Sow outdoors: Mar 29 to Apr 12
Start indoors: Jan 25 to Feb 8Transplant outside: Mar 15 to Mar 29
Sow outdoors: Jan 25 to Feb 15Plant for fall: Aug 27 to Sep 17
Sow outdoors: Jan 25 to Feb 15Plant for fall: Sep 24 to Oct 15
Sow outdoors: Feb 1 to Mar 15Plant for fall: Oct 8 to Oct 29
Start indoors: Feb 8 to Feb 15Transplant outside: Mar 22 to Mar 29Sow outdoors: Mar 15 to Mar 29Plant for fall: Sep 3 to Sep 17
Start indoors: Feb 8 to Feb 15Sow outdoors: Mar 15 to Mar 29Plant for fall: Sep 10 to Sep 24
Start indoors: Feb 8 to Feb 15Sow outdoors: Mar 15 to Mar 29
Start indoors: Feb 8 to Feb 15Transplant outside: Mar 22 to Apr 5
Sow outdoors: Feb 15 to Mar 15Plant for fall: Aug 27 to Sep 10
Sow outdoors: Feb 15 to Mar 15Plant for fall: Sep 10 to Sep 24
Sow outdoors: Feb 15 to Mar 8
Sow outdoors: Feb 22 to Mar 22Plant for fall: Sep 10 to Sep 24
Sow outdoors: Feb 22 to Mar 15Plant for fall: Sep 24 to Oct 15
Sow outdoors: Mar 15 to Apr 5Plant for fall: Sep 3 to Sep 17
Sow outdoors: Mar 15 to Mar 29
Transplant outside: Mar 22 to Apr 12
Plant for fall: Nov 5 to Dec 10
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Hammond, LA
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 14 – Dec 28 | Feb 8 – Feb 22 | — | — |
| Peppers | Dec 28 – Jan 11 | Mar 22 – Apr 5 | — | — |
| Eggplant | Dec 28 – Jan 11 | Mar 22 – Apr 5 | — | — |
| Tomatoes | Jan 11 – Jan 25 | Mar 15 – Mar 29 | — | — |
| Lettuce | Jan 11 – Jan 25 | Feb 15 – Mar 1 | Feb 8 – Mar 15 | Sep 24 – Oct 22 |
| Kale | Jan 11 – Jan 25 | Feb 8 – Feb 22 | Feb 8 – Feb 22 | Sep 10 – Oct 1 |
| Broccoli | Jan 11 – Jan 25 | Feb 22 – Mar 8 | — | Aug 13 – Sep 3 |
| Cabbage | Jan 11 – Jan 25 | Feb 15 – Mar 1 | — | Aug 13 – Sep 3 |
| Cauliflower | Jan 11 – Jan 25 | Feb 22 – Mar 8 | — | Aug 13 – Sep 3 |
| Okra | Jan 25 – Feb 8 | Mar 29 – Apr 12 | Mar 29 – Apr 12 | — |
| Basil | Jan 25 – Feb 8 | Mar 15 – Mar 29 | — | — |
| Peas | — | — | Jan 25 – Feb 15 | Aug 27 – Sep 17 |
| Spinach | — | — | Jan 25 – Feb 15 | Sep 24 – Oct 15 |
| Radishes | — | — | Feb 1 – Mar 15 | Oct 8 – Oct 29 |
| Cucumbers | Feb 8 – Feb 15 | Mar 22 – Mar 29 | Mar 15 – Mar 29 | Sep 3 – Sep 17 |
| Zucchini & Summer Squash | Feb 8 – Feb 15 | — | Mar 15 – Mar 29 | Sep 10 – Sep 24 |
| Winter Squash & Pumpkins | Feb 8 – Feb 15 | — | Mar 15 – Mar 29 | — |
| Melons & Watermelon | Feb 8 – Feb 15 | Mar 22 – Apr 5 | — | — |
| Carrots | — | — | Feb 15 – Mar 15 | Aug 27 – Sep 10 |
| Beets | — | — | Feb 15 – Mar 15 | Sep 10 – Sep 24 |
| Potatoes | — | — | Feb 15 – Mar 8 | — |
| Swiss Chard | — | — | Feb 22 – Mar 22 | Sep 10 – Sep 24 |
| Cilantro | — | — | Feb 22 – Mar 15 | Sep 24 – Oct 15 |
| Green Beans | — | — | Mar 15 – Apr 5 | Sep 3 – Sep 17 |
| Sweet Corn | — | — | Mar 15 – Mar 29 | — |
| Sweet Potatoes | — | Mar 22 – Apr 12 | — | — |
| Garlic | — | — | — | Nov 5 – Dec 10 |
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 Hammond 5 E, LA weather station, 10 km away (elevation 36 ft (11 m)).
ZIP codes in Hammond: 70401 70402 70403 70404
Frost dates near Hammond
- Natalbany Mar 8 · Nov 19
- Tickfaw Mar 8 · Nov 19
- Ponchatoula Mar 8 · Nov 19
- Albany Mar 8 · Nov 19
- Robert Mar 8 · Nov 19
- Independence Mar 7 · Nov 18
- Loranger Mar 8 · Nov 19
- Springfield Mar 8 · Nov 19
Frequently asked questions
When is the last frost in Hammond, LA?
The median last spring frost in Hammond, LA is March 8. There is still about a 10% chance of frost after March 31, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Hammond, LA?
The median first fall frost is November 19, with about a 10% chance of frost before November 3.
How long is the growing season in Hammond, LA?
About 256 days between the median last spring frost and first fall frost.
What planting zone is Hammond, LA?
Hammond, LA is in USDA hardiness zone 9a.