Frost dates for 77520 — Baytown, TX
Last spring frostFeb 20median date
First fall frostDec 4median date
Growing season287 daysfrost-free
Hardiness zone9bZone 9b
How Baytown compares
- In 8 years out of 10, the last spring frost in Baytown falls between January 23 and March 14, a 50-day window. The first fall frost falls between November 12 and January 4.
- The median last frost is 23 days earlier than the Texas median of Mar 15.
- Its 287-day growing season is longer than 92% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is typical for zone 9b, where the median is Feb 20.
- The weather station records an average of 9 nights a year at or below 32°F.
- Nearby Pasadena, TX, 21 km away, gets only light, occasional frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 23 |
| 50% (median) | February 20 |
| 10% (safe for tender plants) | March 14 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 12 |
| 50% (median) | December 4 |
| 90% (late) | January 4 |
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 Baytown, TX
Frost dates for 77520 — Baytown, TX — last frost Feb 20, first frost Dec 4, zone 9b. whenisthelastfrost.com
Crop
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Start indoors: Nov 28 to Dec 12Transplant outside: Jan 23 to Feb 6
Start indoors: Dec 12 to Dec 26Transplant outside: Mar 6 to Mar 20
Start indoors: Dec 12 to Dec 26Transplant outside: Mar 6 to Mar 20
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Feb 27 to Mar 13
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Jan 30 to Feb 13Sow outdoors: Jan 23 to Feb 27Plant for fall: Oct 9 to Nov 6
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Jan 23 to Feb 6Sow outdoors: Jan 23 to Feb 6Plant for fall: Sep 25 to Oct 16
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Feb 6 to Feb 20Plant for fall: Aug 28 to Sep 18
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Jan 30 to Feb 13Plant for fall: Aug 28 to Sep 18
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Feb 6 to Feb 20Plant for fall: Aug 28 to Sep 18
Start indoors: Jan 9 to Jan 23Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 13 to Mar 27
Start indoors: Jan 9 to Jan 23Transplant outside: Feb 27 to Mar 13
Sow outdoors: Jan 9 to Jan 30Plant for fall: Sep 11 to Oct 2
Sow outdoors: Jan 9 to Jan 30Plant for fall: Oct 9 to Oct 30
Sow outdoors: Jan 16 to Feb 27Plant for fall: Oct 23 to Nov 13
Start indoors: Jan 23 to Jan 30Transplant outside: Mar 6 to Mar 13Sow outdoors: Feb 27 to Mar 13Plant for fall: Sep 18 to Oct 2
Start indoors: Jan 23 to Jan 30Sow outdoors: Feb 27 to Mar 13Plant for fall: Sep 25 to Oct 9
Start indoors: Jan 23 to Jan 30Sow outdoors: Feb 27 to Mar 13
Start indoors: Jan 23 to Jan 30Transplant outside: Mar 6 to Mar 20
Sow outdoors: Jan 30 to Feb 27Plant for fall: Sep 11 to Sep 25
Sow outdoors: Jan 30 to Feb 27Plant for fall: Sep 25 to Oct 9
Sow outdoors: Jan 30 to Feb 20
Sow outdoors: Feb 6 to Mar 6Plant for fall: Sep 25 to Oct 9
Sow outdoors: Feb 6 to Feb 27Plant for fall: Oct 9 to Oct 30
Sow outdoors: Feb 27 to Mar 20Plant for fall: Sep 18 to Oct 2
Sow outdoors: Feb 27 to Mar 13
Transplant outside: Mar 6 to Mar 27
Plant for fall: Nov 20 to Dec 25
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Baytown, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 28 – Dec 12 | Jan 23 – Feb 6 | — | — |
| Peppers | Dec 12 – Dec 26 | Mar 6 – Mar 20 | — | — |
| Eggplant | Dec 12 – Dec 26 | Mar 6 – Mar 20 | — | — |
| Tomatoes | Dec 26 – Jan 9 | Feb 27 – Mar 13 | — | — |
| Lettuce | Dec 26 – Jan 9 | Jan 30 – Feb 13 | Jan 23 – Feb 27 | Oct 9 – Nov 6 |
| Kale | Dec 26 – Jan 9 | Jan 23 – Feb 6 | Jan 23 – Feb 6 | Sep 25 – Oct 16 |
| Broccoli | Dec 26 – Jan 9 | Feb 6 – Feb 20 | — | Aug 28 – Sep 18 |
| Cabbage | Dec 26 – Jan 9 | Jan 30 – Feb 13 | — | Aug 28 – Sep 18 |
| Cauliflower | Dec 26 – Jan 9 | Feb 6 – Feb 20 | — | Aug 28 – Sep 18 |
| Okra | Jan 9 – Jan 23 | Mar 13 – Mar 27 | Mar 13 – Mar 27 | — |
| Basil | Jan 9 – Jan 23 | Feb 27 – Mar 13 | — | — |
| Peas | — | — | Jan 9 – Jan 30 | Sep 11 – Oct 2 |
| Spinach | — | — | Jan 9 – Jan 30 | Oct 9 – Oct 30 |
| Radishes | — | — | Jan 16 – Feb 27 | Oct 23 – Nov 13 |
| Cucumbers | Jan 23 – Jan 30 | Mar 6 – Mar 13 | Feb 27 – Mar 13 | Sep 18 – Oct 2 |
| Zucchini & Summer Squash | Jan 23 – Jan 30 | — | Feb 27 – Mar 13 | Sep 25 – Oct 9 |
| Winter Squash & Pumpkins | Jan 23 – Jan 30 | — | Feb 27 – Mar 13 | — |
| Melons & Watermelon | Jan 23 – Jan 30 | Mar 6 – Mar 20 | — | — |
| Carrots | — | — | Jan 30 – Feb 27 | Sep 11 – Sep 25 |
| Beets | — | — | Jan 30 – Feb 27 | Sep 25 – Oct 9 |
| Potatoes | — | — | Jan 30 – Feb 20 | — |
| Swiss Chard | — | — | Feb 6 – Mar 6 | Sep 25 – Oct 9 |
| Cilantro | — | — | Feb 6 – Feb 27 | Oct 9 – Oct 30 |
| Green Beans | — | — | Feb 27 – Mar 20 | Sep 18 – Oct 2 |
| Sweet Corn | — | — | Feb 27 – Mar 13 | — |
| Sweet Potatoes | — | Mar 6 – Mar 27 | — | — |
| Garlic | — | — | — | Nov 20 – Dec 25 |
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 Baytown, TX weather station, 19 km away (elevation 26 ft (8 m)).
ZIP codes in Baytown: 77520 77521 77522 77523
Frost dates near Baytown
- La Porte Jan 31 · Dec 14
- Highlands Feb 20 · Dec 4
- Mont Belvieu Feb 20 · Dec 4
- Deer Park Jan 30 · Dec 28
- Channelview Feb 2 · Dec 25
- Seabrook Jan 31 · Dec 14
- Pasadena Jan 30 · Dec 28
- Crosby Feb 20 · Dec 4
Frequently asked questions
When is the last frost in Baytown, TX?
The median last spring frost in Baytown, TX is February 20. There is still about a 10% chance of frost after March 14, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Baytown, TX?
The median first fall frost is December 4, with about a 10% chance of frost before November 12.
How long is the growing season in Baytown, TX?
About 287 days between the median last spring frost and first fall frost.
What planting zone is Baytown, TX?
Baytown, TX is in USDA hardiness zone 9b.