Frost dates for ZIP 78402 (Corpus Christi, TX)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Corpus Christi, TX (6 miles away).
Freezes are uncommon here
NOAA's normals for this station show a 32°F night in about 88% of years (about 4 freezing night(s) a year on average). The dates below describe freeze timing for the station's record; in many years there may be no 32°F freeze at all.
- Average last spring frostJan 2850% chance of a 32°F freeze after this date
- Average first fall frostDec 2150% chance of a 32°F freeze by this date
- Growing season (frost-free)331 daysmedian, 32°F threshold
- USDA hardiness zone10a30 to 35°F avg. coldest night
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Dec 16 (prior Dec) |
| 50% (the "average" last frost) | Jan 28 |
| 10% (safe-side: only 1 year in 10 freezes later) | Feb 28 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Nov 25 |
| 50% (the "average" first frost) | Dec 21 |
| 90% (late: most years have frozen by now) | Jan 26 (next year) |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Feb 16 | Dec 5 |
| 32°F (freeze) | Jan 28 | Dec 21 |
| 28°F (hard freeze) | Jan 8 | Dec 30 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
This week in Corpus Christi
Soil temperature now
2-inch depth
76°F 55°F or warmer
24-hour average · latest 76°F, as of Oct 17, 8:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of RB Farms Inc (20 mi), LaRosa Ranch Refugio (31 mi), Kingsville (34 mi).
4-inch depth
77°F 55°F or warmer
24-hour average · latest 78°F, as of Oct 17, 8:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of RB Farms Inc (20 mi), LaRosa Ranch Refugio (31 mi), Kingsville (34 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
No frost in the 7-day forecast.
| Period | High | Low | Forecast |
|---|---|---|---|
| Tonight | 58° | Mostly Clear | |
| Sunday | 74° | 65° | Sunny |
| Monday | 77° | 69° | Partly Sunny |
| Tuesday | 80° | 71° | Sunny |
| Wednesday | 82° | 70° | Sunny |
| Thursday | 84° | 70° | Sunny |
| Friday | 85° | 73° | Sunny |
National Weather Service forecast, issued Oct 17, 8:28 PM CDT. Frost can form above 32°F on clear, calm nights. Full NWS forecast.
Free frost alerts for 78402
An email when the National Weather Service forecasts a freeze for this ZIP, plus the spring soil-temperature heads-up. At most a few a month.
Alerts open soon. This form is a preview and doesn't send anything yet.
Where these numbers come from
Station: Corpus Christi, TX (NOAA GHCN-Daily ID USW00012924), elevation 45 ft, 6.4 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Corpus Christi NWS, TX | 6 mi | Jan 31 | Dec 22 |
| Corpus Christi Cabaniss Fld, TX | 11 mi | Jan 15 | Dec 30 |
| C C Botanical Gardens, TX | 13 mi | Jan 29 | Dec 24 |
The average last-frost dates of these stations span 16 days, a rough guide to local variation. See data sources & methods.
Questions
When is the last frost in 78402?
The average (50% chance) last spring freeze of 32°F for ZIP 78402 is January 28. For a safer planting date, use February 28, when only 1 year in 10 still sees a later freeze.
When is the first frost in 78402?
The average first fall freeze is December 21. In 1 year in 10 it comes by November 25.
What hardiness zone is 78402?
ZIP 78402 is in USDA zone 10a (30 to 35°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
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