USDA Hardiness Zone 9a
Frost Dates for 77984 — Shiner, Texas
NOAA 1991–2020 normals from Yoakum, TX (295 ft), 12 miles south.
Updated
In Shiner, the last spring frost (32°F) is around March 2 in half of years and has passed by March 23 in nine years out of ten. The first fall frost comes around November 30, as early as November 7 one year in ten, leaving a typical freeze-free season of 276 days (NOAA, Yoakum, TX).
- Last spring frost
- March 2
- First fall frost
- November 30
- Growing season
- 276 days
- Hardiness zone
- 9a
50% probability
50% probability
freeze-free, 50%
20 to 25°F (-6.7 to -3.9°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 5%
- Snow per year
- 0.1"
median, 1991–2020
median, 1991–2020
1 of 22 observed
NOAA normal
Frost risk by date in Shiner
Half of springs at Yoakum, TX see their last 32°F night by March 2; only one in ten is past it by January 31, and one in ten still has one after March 23. Planting tender crops after March 10 leaves a 30% risk of a frost on them, after March 15 20%, and after March 23 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 50% 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 November 30 in half of years, as early as November 7 one year in ten, and holds off past December 26 one year in ten. A hard freeze of 28°F follows 17 days later, around December 17; in spring the one-in-ten date for 28°F is March 12, 11 days before the 32°F one. The freeze-free season lasts 276 days in a typical year, longer than at 76% of the 339 Texas stations; it reaches 310 days one year in ten and falls short of 243 one year in ten. On average 17 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 12 days longer, to about March 14, and return around November 16. Nights of 24°F, cold enough to damage hardier plants, come in 66% of winters and 16°F in 2%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Feb 22 | Feb 28 | Mar 6 | Mar 10 | Mar 14 | Mar 19 | Mar 25 | Mar 31 | Apr 7 |
| 32°F | Jan 31 | Feb 12 | Feb 19 | Feb 25 | Mar 2 | Mar 5 | Mar 10 | Mar 15 | Mar 23 |
| 28°F96% of yrs | Jan 6 | Jan 20 | Jan 29 | Feb 4 | Feb 11 | Feb 18 | Feb 26 | Mar 4 | Mar 12 |
| 24°F66% of yrs | Dec 18 | Dec 31 | Jan 7 | Jan 16 | Jan 25 | Feb 1 | Feb 8 | Feb 18 | Mar 2 |
| 20°F25% of yrs | too rare for a date | ||||||||
| 16°F2% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 31 | Nov 4 | Nov 9 | Nov 13 | Nov 16 | Nov 21 | Nov 26 | Dec 1 | Dec 7 |
| 32°F | Nov 7 | Nov 14 | Nov 20 | Nov 25 | Nov 30 | Dec 3 | Dec 7 | Dec 13 | Dec 26 |
| 28°F96% of yrs | Nov 22 | Nov 30 | Dec 5 | Dec 10 | Dec 17 | Dec 25 | Jan 1 | Jan 8 | Jan 20 |
| 24°F66% of yrs | Dec 7 | Dec 14 | Dec 24 | Dec 31 | Jan 4 | Jan 9 | Jan 18 | Jan 30 | Feb 11 |
| 20°F25% of yrs | too rare for a date | ||||||||
| 16°F2% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Yoakum, 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 77984 →Compare Shiner with another place →
Weather by month in Shiner
August is the warmest month at Yoakum, TX, averaging 96°F by day and 72°F at night; January is the coldest at 63°F and 41°F. A freezing night is all but certain in January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 74% of years and March still brings one in 51% of years.
Warmth for growing adds up to 7,219 growing degree days a year (base 50°F), more than at 74% of the 351 Texas stations. 42% of them (3,050) have built up by the end of June, and August adds the most, 1,052. Precipitation totals 40.1 inches a year, most in June (4.4") and least in February (1.9"); May to September bring 46% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 63 | 41 | 2.9 | 91% | 6 | 151 |
| Feb | 67 | 45 | 1.9 | 74% | 3 | 208 |
| Mar | 73 | 52 | 3.3 | 51% | 1 | 397 |
| Apr | 79 | 58 | 3.4 | 3% | 0 | 554 |
| May | 86 | 66 | 3.8 | 0% | 0 | 806 |
| Jun | 91 | 71 | 4.4 | 0% | 0 | 934 |
| Jul | 94 | 73 | 2.8 | 0% | 0 | 1029 |
| Aug | 96 | 72 | 3.5 | 0% | 0 | 1052 |
| Sep | 90 | 68 | 3.8 | 0% | 0 | 879 |
| Oct | 83 | 59 | 4.4 | 2% | <1 | 649 |
| Nov | 73 | 50 | 3.2 | 49% | 1 | 366 |
| Dec | 65 | 43 | 2.7 | 87% | 5 | 194 |
Monthly normals 1991–2020 at Yoakum, TX (295 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Hallettsville 2 N, TX, 15 miles east of Shiner, has a last frost 13 days earlier (February 17), a first frost 4 days later (December 4), a season 21 days longer.
When it snows in Shiner, Texas
Measurable snow is rare here: only 1 of 22 winters from 1991 to 2020 recorded 0.1 inch or more at Yoakum, TX, 11.8 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 77984
| When | What to do |
|---|---|
| December 22 – January 5 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 5 – January 19 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 2 – February 16 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 2 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by September 7 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by November 16 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 30 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 77984 is 12 miles from Yoakum, TX, which stands at 295 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 77995 (Yoakum). The 2023 USDA Plant Hardiness Zone Map lists ZIP 77984 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°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.