USDA Hardiness Zone 10a
Frost Dates for 78417 — Corpus Christi, Texas
NOAA 1991–2020 normals from Corpus Christi Cabaniss Field, TX (30 ft), 2 miles south.
Updated
A freeze (32°F) reaches Corpus Christi in 64% of winters. When it does, the first fall frost comes around December 30 and the last spring frost around January 15; after February 23 the chance of another is under 6%.
- Last spring frost
- January 15
- First fall frost
- December 30
- Winters with a freeze
- 64%
- Hardiness zone
- 10a
50%, in freezing years
50%, in freezing years
32°F or below, 1991–2020
30 to 35°F (-1.1 to 1.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 13%
- Snow per year
- 0.3"
median, 1991–2020
median, 1991–2020
2 of 16 observed
NOAA normal
Frost risk by date in Corpus Christi
In the 64% of winters that bring a 32°F night, half of springs at Corpus Christi Cabaniss Field, TX see their last 32°F night by January 15; only one in ten is past it by December 11, and one in ten still has one after February 23. Counting the winters with no freeze at all, the risk of a 32°F night after February 23 is under 6% and after January 15 32%. The 39 days between the even-odds date and the one-in-ten date is wider than at 99% of the 339 Texas stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.
In fall the first 32°F night comes by December 30 in half of years, as early as December 1 one year in ten, and holds off past February 6 one year in ten. A hard freeze of 28°F is less common: it came in 23% of winters. The freeze-free season lasts 353 days in a typical year, longer than at 99% of the 339 Texas stations; it reaches 365 days one year in ten and falls short of 313 one year in ten. On average 3 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 18 days longer, to about February 2, and return around December 12. A 24°F night is unusual: 4% of winters had one.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F95% of yrs | Dec 24 | Jan 7 | Jan 19 | Jan 28 | Feb 2 | Feb 8 | Feb 17 | Feb 25 | Mar 4 |
| 32°F64% of yrs | Dec 11 | Dec 22 | Jan 1 | Jan 6 | Jan 15 | Jan 25 | Feb 1 | Feb 7 | Feb 23 |
| 28°F23% of yrs | too rare for a date | ||||||||
| 24°F4% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F95% of yrs | Nov 19 | Nov 26 | Dec 1 | Dec 7 | Dec 12 | Dec 20 | Dec 29 | Jan 5 | Jan 23 |
| 32°F64% of yrs | Dec 1 | Dec 6 | Dec 12 | Dec 22 | Dec 30 | Jan 3 | Jan 10 | Jan 24 | Feb 6 |
| 28°F23% of yrs | too rare for a date | ||||||||
| 24°F4% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Corpus Christi Cabaniss Field, TX, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 78417 →Compare Corpus Christi with another place →
Compared with the next station
The nearest other station, Corpus Christi NWS, TX, 5 miles northwest of Corpus Christi, has a last frost 16 days later (January 31), a first frost 8 days earlier (December 22), a season 22 days shorter.
When it snows in Corpus Christi, Texas
Measurable snow is rare here: only 2 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Corpus Christi NWS, TX, 5 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 78417 is 2 miles from Corpus Christi Cabaniss Field, TX, which stands at 30 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 78415 (Corpus Christi). The 2023 USDA Plant Hardiness Zone Map lists ZIP 78417 in zone 10a, the band where the coldest night of the year averaged 30 to 35°F (-1.1 to 1.7°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.