Planting Date FinderZone, frost date, planting window

Planting calendar for Schertz, TX

Direct answer. In Schertz, TX, the median last 32°F date at NEW BRAUNFELS, TX US (USC00416276) is March 8, and the median first 32°F date is November 18. The station is 8.5 miles from the city point. Crop windows come from Texas A&M AgriLife Extension. Where that guide counts weeks from a frost date and does not name a 10%, 50%, or 90% level, those weeks are applied to these median dates.

Median last 32°F March 8. Median first 32°F November 18. Frost dates for Schertz.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.
Median last 32°F is March 8. Median first 32°F is November 18. The 50% growing-season length is 253 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

ProbabilityDateHow to read it
90%February 17Earlier date. A last 32°F on or after this day is common.
50%March 8Median.
10%April 1Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

ProbabilityDateHow to read it
10%November 2Earlier date. A first 32°F on or before this day is uncommon.
50%November 18Median.
90%December 10Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this longDays
10%287
50%253
90%223

28°F threshold

10%50%90%
Last, on or afterMarch 17February 24January 29
First, on or beforeNovember 10December 2January 8
Season at least319 days284 days251 days

36°F threshold

10%50%90%
Last, on or afterApril 18March 25February 28
First, on or beforeOctober 25November 7November 25
Season at least256 days227 days200 days

Station NEW BRAUNFELS, TX US (USC00416276). Completeness flag R, 22 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 219.5 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Questions

Which frost date do the crop weeks use?
Weeks after the frost-free date use the median last 32°F date, March 8, when the guide does not name a probability. Weeks before the first freeze use the median first 32°F date, November 18. Both medians are 50% dates in the NOAA 1991–2020 normals for the station on this page. The page says when that anchor was used.
Where do the crop dates come from?
Crop dates come from the extension guide cited on this page, not from a second calendar invented here. The publisher and the title are printed with the source note. A month without a day is expanded to the first and last day of that month, and the page says so. A phrase without two dates stays a phrase.
Is this planting calendar a forecast?
No. The frost dates are 1991–2020 climate normals at the station 8.5 miles from the city point. The crop windows are the cited guide’s ranges, shifted only when that guide itself used weeks. A cold spring can still fall past the median. The National Weather Service forecast covers a particular night. This page does not.

Crops in the cited guide

SowTomatoesSpringMarch 15 – May 3As printed1 to 8 weeks afterFallAugust 12 – August 26As printed12 to 14 weeks before70-90 days to harvestSowPeppersSpringMarch 15 – May 3As printed1 to 8 weeks afterFallJuly 29 – August 26As printed12 to 16 weeks before60-90 days to harvestSowEggplantSpringMarch 22 – April 19As printed2 to 6 weeks afterFallJuly 29 – August 26As printed12 to 16 weeks before80-90 days to harvestSowCucumberSpringMarch 15 – April 19As printed1 to 6 weeks afterFallAugust 26 – September 9As printed10 to 12 weeks before50-70 days to harvestSowSummer squashSpringMarch 15 – April 5As printed1 to 4 weeks afterFallAugust 5 – August 26As printed12 to 15 weeks before50-60 days to harvestSowWinter squashSpringMarch 15 – April 5As printed1 to 4 weeks afterFallAugust 12 – August 26As printed12 to 14 weeks before85-100 days to harvestSowSnap beans, bushSpringMarch 15 – April 5As printed1 to 4 weeks afterFallSeptember 9 – September 23As printed8 to 10 weeks before45-60 days to harvestSowSnap beans, poleSpringMarch 15 – April 5As printed1 to 4 weeks afterFallJuly 29 – August 12As printed14 to 16 weeks before60-70 days to harvestSowSweet cornSpringMarch 15 – April 19As printed1 to 6 weeks afterFallAugust 12 – August 26As printed12 to 14 weeks before70-90 days to harvestSowLettuceSpringJanuary 26 – March 22As printed6 weeks before or 2 weeks afterFallAugust 12 – September 9As printed10 to 14 weeks before40-80 days to harvestSowSpinachSpringJanuary 12 – March 1As printed1 to 8 weeks beforeFallJuly 29 – November 4As printed2 to 16 weeks before40-60 days to harvestSowCollards and kaleSpringJanuary 26 – February 23As printed2 to 6 weeks beforeFallAugust 26 – September 23As printed8 to 12 weeks before50-80 days to harvestSowBroccoliSpringJanuary 26 – February 9As printed4 to 6 weeks beforeFallJuly 29 – September 9As printed10 to 16 weeks before60-80 days to harvestSowCabbageSpringJanuary 26 – February 9As printed4 to 6 weeks beforeFallJuly 29 – September 9As printed10 to 16 weeks before60-90 days to harvestSowCarrotsSpringJanuary 26 – February 9As printed4 to 6 weeks beforeFallAugust 12 – August 26As printed12 to 14 weeks before70-80 days to harvestSowRadishesSpringJanuary 26 – April 5As printed6 weeks before / 4 weeks afterFallSeptember 23 – November 11As printed1 to 8 weeks before25-40 days to harvestSowBeetsSpringJanuary 26 – February 9As printed4 to 6 weeks beforeFallSeptember 9 – September 23As printed8 to 10 weeks before50-60 days to harvestSowEnglish peasSpringJanuary 12 – February 23As printed2 to 8 weeks beforeFallAugust 26 – November 4As printed2 to 12 weeks before55-90 days to harvestSowSouthern peasSpringMarch 22 – May 17As printed2 to 10 weeks afterFallAugust 26 – September 9As printed10 to 12 weeks before60-70 days to harvestSowOnions, from plantsSpringDecember 29 – February 9As printed4 to 10 weeks before80-120 days to harvestSowGarlicFallOctober 7 – October 21As printed4 to 6 weeks before140-150 days to harvestSowIrish potatoesSpringJanuary 26 – February 9As printed4 to 6 weeks beforeFallJuly 29 – August 12As printed14 to 16 weeks before75-100 days to harvestSowSweet potatoesSpringMarch 22 – May 3As printed2 to 8 weeks after100-130 days to harvestSowOkraSpringMarch 22 – April 19As printed2 to 6 weeks afterFallJuly 29 – August 26As printed12 to 16 weeks before55-65 days to harvestSowWatermelonSpringMarch 15 – April 19As printed1 to 6 weeks afterFallJuly 29 – August 12As printed14 to 16 weeks before80-100 days to harvestSowCollardsSpringJanuary 26 – February 23As printed2 to 6 weeks beforeFallAugust 26 – September 23As printed8 to 12 weeks before50-80 days to harvestSowSwiss chardSpringJanuary 26 – February 23As printed2 to 6 weeks beforeFallAugust 12 – August 26As printed12 to 14 weeks before45-55 days to harvestSowTurnipsSpringJanuary 26 – February 23As printed2 to 6 weeks beforeFallAugust 26 – November 4As printed2 to 12 weeks before30-60 days to harvestSowPumpkinSpringMarch 15 – April 5As printed1 to 4 weeks afterFallAugust 12 – August 26As printed12 to 14 weeks before75-100 days to harvestSowBrussels sproutsSpringJanuary 26 – February 9As printed4 to 6 weeks beforeFallAugust 12 – September 9As printed10 to 14 weeks before90-100 days to harvestSowCauliflowerFallJuly 29 – September 9As printed10 to 16 weeks before70-90 days to harvestSowMustardSpringMarch 15 – April 19As printed1 to 6 weeks afterFallJuly 29 – September 9As printed10 to 16 weeks before30-40 days to harvest

Schertz, TX

Zone 9aAverage annual extreme minimum 20°F to 25°F

Median last 32°F is March 8. Median first 32°F is November 18. The 50% growing-season length is 253 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Texas. Nearest qualified station: NEW BRAUNFELS, TX US (USC00416276), 8.5 miles. Median last 32°F March 8. Median first 32°F November 18. The 50% growing-season length is 253 days.

Open the ZIP page · Crop guides for Texas

32°F probabilities at this station
10%50%90%
Last 32°F on or afterApril 1March 8February 17
First 32°F on or beforeNovember 2November 18December 10

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from Texas A&M AgriLife Extension, Texas Home Vegetable Gardening Guide, retrieved 2026-10-10. Table 8 is statewide and is written as weeks before or after the frost-free date (spring) and the first freeze date (fall). It is not a single calendar date for every Texas city.

Date checks use your device’s calendar and appear after the page loads.

State crop pages: Tomatoes · Peppers · Eggplant · Cucumber · Summer squash · Winter squash · Snap beans, bush · Snap beans, pole