Last frost date in La Porte, TX
Expect the last frost in La Porte around January 31. Frost after March 5 happens in only one year out of ten. The first fall frost usually arrives about December 14, which leaves 317 frost-free days. An early freeze before November 19 happens one year in ten.
- Safe after (10% risk)
- Mar 5
- Average first frost
- Dec 14
- Frost-free season
- 317 days
- Hard freeze (28°F) ends
- Jan 17
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2261°
- FriOct 2365°
- SatOct 2465°
- SunOct 2565°
- MonOct 2665°
- TueOct 2764°
- WedOct 2864°
Planting calendar for La Porte
Windows count forward or back from the average frost dates above. Click a crop for dates across Texas.
TomatoesFeb 15–Mar 1
PumpkinsFeb 15–Mar 1
SunflowersFeb 15–Mar 8
CucumbersFeb 22–Mar 1
CornFeb 15–Mar 1
Sweet potatoesFeb 21–Mar 7
WatermelonFeb 15–Mar 1
Green beansFeb 15–Mar 8
ZucchiniFeb 15–Mar 1
OkraFeb 21–Mar 7
PeppersFeb 15–Mar 1
BasilFeb 15–Mar 1
Butternut squashFeb 15–Mar 1
CantaloupeFeb 15–Mar 1
EggplantFeb 15–Mar 1
PotatoesJan 3–Jan 17
OnionsDec 20–Jan 10
CarrotsJan 10–Feb 14
LettuceJan 17–Feb 7
BroccoliJan 3–Jan 17
BeetsJan 3–Feb 14
PeasDec 20–Jan 3
CabbageJan 3–Jan 17
RadishesDec 27–Feb 7
Brussels sproutsJan 17–Jan 31
SpinachDec 20–Jan 10
CilantroJan 17–Feb 7
KaleJan 3–Jan 17
Collard greensJan 3–Jan 17
TurnipsJan 3–Jan 17
DillJan 31–Feb 14
CeleryFeb 7–Feb 14
CauliflowerJan 17–Jan 31
LeeksJan 17–Jan 31
Swiss chardJan 17–Feb 14
ParsleyJan 17–Feb 7
Tulip bulbsDec 15–Jan 15
GarlicOct 15–Nov 30
Daffodil bulbsOct 15–Nov 30
StrawberriesJan 3–Jan 17
AsparagusJan 3–Jan 17Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Dec 25 | Jan 31 | Mar 5 | Nov 19 | Dec 14 | Jan 19 |
| Hard freeze, 28°F | Dec 19 | Jan 17 | Feb 24 | Dec 6 | Jan 3 | Feb 5 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Houston Nwso (USC00414333) sits 13.7 miles from the center of La Porte at 19 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in La Porte, TX?
The average last frost date in La Porte is January 31, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after March 5.
When is the first frost in La Porte?
The first frost in fall usually comes around December 14. One year in ten it arrives before November 19.
How long is the growing season in La Porte?
About 317 days between the average last and first frost.
When should I plant tomatoes in La Porte?
Plant tomato seedlings outside from February 15 to March 1. Start seeds indoors six to eight weeks earlier.
Nearby in Texas
- Deer ParkFeb 2
- PasadenaJan 30
- BaytownFeb 20
- ChannelviewFeb 2
- CloverleafFeb 2
- League CityJan 31
- FriendswoodJan 31
- DickinsonJan 31
- PearlandJan 31
- Texas CityJan 25
- AlvinFeb 14
- La MarqueJan 31