Frost dates for Portland, TX
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
January 31
typical year
Safe to plant
March 2
frost is over in 9 of 10 years
First fall frost
December 22
typical year
Growing season
331 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Jan 3 – 17 | – |
| Spinach | – | Dec 20 – Jan 10 | Oct 27 – Nov 10 |
| Lettuce | – | Jan 3 – 24 | Oct 27 – Nov 10 |
| Radishes | – | Jan 3 – Feb 14 | Nov 10 – 24 |
| Onions | – | Jan 3 – 17 | – |
| Potatoes | – | Jan 10 – 24 | – |
| Carrots | – | Jan 10 – 31 | Sep 29 – Oct 13 |
| Beets | – | Jan 3 – 17 | Oct 13 – 27 |
| Kale | Nov 22 – Dec 6 | Jan 3 – 17 | Oct 13 – 27 |
| Broccoli | Nov 22 – Dec 6 | Jan 17 – 31 | Oct 13 – 27 |
| Cabbage | Nov 8 – 22 | Jan 3 – 17 | Oct 13 – 27 |
| Garlic | – | – | Nov 10 – Dec 1 |
| Warm-season crops | |||
| Tomatoes | Jan 5 – 19 | Mar 2 – 16 | – |
| Peppers | Dec 29 – Jan 12 | Mar 9 – 23 | – |
| Cucumbers | – | Mar 2 – 23 | – |
| Zucchini | – | Mar 2 – 30 | – |
| Pumpkins | – | Mar 2 – 23 | – |
| Green beans | – | Mar 2 – Oct 13 | – |
| Sweet corn | – | Mar 2 – 30 | – |
| Basil | Jan 26 – Feb 9 | Mar 9 – 16 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | March 2 | January 31 | December 24 |
| Fall frost before | November 29 | December 22 | February 1 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around January 11 (February 17 in a late year), and the first one in fall around January 1.
Towns that use these dates
This is the nearest NOAA station with frost records for 1 town.
Portland
Where these dates come from
NOAA weather station CORPUS CHRISTI NWS, TX US (USC00412011), 1991–2020 climate normals. It's the nearest station for 5 zip codes, all within 7 miles:
78401, 78405, 78406, 78407, 78408
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.