Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 76066 — Millsap, TX

ZIP code 76066 (Millsap, Parker County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is March 24 and the first fall frost November 10.

Where ZIP 76066 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone8a10 to 15 °F
Coldest night−12.2 to −9.4 °C
Last frostMar 24
First frostNov 10
2012 zone8a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Millsap, TX…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Millsap, TX

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 24median — 50% chance of a later frost
Safe for tender plantsApril 14only 10% chance of frost after
First fall frostNovember 10median — 10% chance by Oct 27
Growing season231 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 9 and returns around November 21.

From the NOAA station Mineral Wells Airport, TX — 7 miles away, elevation 932 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 76066

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 10 – Feb 24
SpinachSow outdoors · Feb 10 – Mar 3
Broccoli, cabbageStart indoors · Jan 13 – Jan 27
Broccoli, cabbageTransplant · Mar 3 – Mar 17
Onion setsPlant outdoors · Feb 24 – Mar 10
PotatoesPlant outdoors · Mar 3 – Mar 17
LettuceSow outdoors · Feb 24 – Mar 10
Carrots, beetsSow outdoors · Mar 3 – Mar 17
TomatoesStart indoors · Jan 27 – Feb 10
TomatoesTransplant · Mar 31 – Apr 14
Peppers, eggplantStart indoors · Jan 13 – Jan 27
Peppers, eggplantTransplant · Apr 7 – Apr 21
BeansSow outdoors · Mar 31 – Apr 14
Sweet cornSow outdoors · Mar 31 – Apr 14
Cucumbers, squashSow outdoors · Mar 31 – Apr 14
Fall lettuce, spinachSow outdoors · Sep 15 – Sep 29
GarlicPlant cloves · Oct 27 – Dec 1
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 24) and first fall frost (Nov 10) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 76066 came on Feb 7 — about the same time as the 1991–2020 average (Feb 6).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Millsap, TX

The soil mapped at the center of ZIP 76066 is Thurber — clay loam, moderately well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH7.5slightly alkaline; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter2.15%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classFarmland of statewide importanceUSDA classification

Map unit: Thurber clay loam, 1 to 3 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 76066; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Millsap, TX

Summer high96 °Faverage high, July
Winter low33 °Faverage low, January
Hot days111days a year at 90 °F or more
Freezing nights48nights a year at 32 °F or less
Growing degree days6,163base 50 °F — the season’s usable heat
Longest day14 h 18 mindaylight on June 21
Shortest day10 h 00 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation31.8 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 58 °F, low 33 °F 58°33° JanFebruary: average high 62 °F, low 37 °F 62°37° FebMarch: average high 71 °F, low 45 °F 71°45° MarApril: average high 78 °F, low 52 °F 78°52° AprMay: average high 85 °F, low 61 °F 85°61° MayJune: average high 92 °F, low 68 °F 92°68° JunJuly: average high 96 °F, low 71 °F 96°71° JulAugust: average high 96 °F, low 71 °F 96°71° AugSeptember: average high 89 °F, low 64 °F 89°64° SepOctober: average high 79 °F, low 53 °F 79°53° OctNovember: average high 67 °F, low 43 °F 67°43° NovDecember: average high 59 °F, low 34 °F 59°34° Dec

Precipitation by month inches

0″1″2″3″4″January: 1.59 in precipitation 1.6 JanFebruary: 2.19 in precipitation 2.2 FebMarch: 2.98 in precipitation 3.0 MarApril: 2.63 in precipitation 2.6 AprMay: 4.00 in precipitation 4.0 MayJune: 3.55 in precipitation 3.5 JunJuly: 2.13 in precipitation 2.1 JulAugust: 2.49 in precipitation 2.5 AugSeptember: 2.66 in precipitation 2.7 SepOctober: 3.28 in precipitation 3.3 OctNovember: 2.41 in precipitation 2.4 NovDecember: 1.89 in precipitation 1.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mineral Wells Airport, TX (7 mi away); precipitation: Mineral Wells Airport, TX (7 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

1 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

764398a
Dennis, TX · 7 mi
760688a
Mineral Wells, TX · 10 mi
760678a
Mineral Wells, TX · 11 mi
760888a
Weatherford, TX · 12 mi
764728a
Santo, TX · 12 mi
760878a
Weatherford, TX · 12 mi
764628b
Lipan, TX · 12 mi
760868a
Weatherford, TX · 13 mi

Texas planting zones →

Questions about 76066

What planting zone is ZIP code 76066?

ZIP code 76066 (Millsap, TX) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).

When is the last frost in Millsap, TX?

The median last spring frost (32 °F) near 76066 is March 24; after April 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mineral Wells Airport station.

When is the first frost in Millsap, TX?

The median first fall frost near 76066 is November 10, giving a median frost-free growing season of 231 days.

When should I plant tomatoes in 76066?

Start tomato seeds indoors around Jan 27 – Feb 10 and set transplants outside around Mar 31 – Apr 14, one to three weeks after the median last frost.

How much rain and snow does 76066 get?

About 31.8 inches of precipitation a year (NOAA 1991–2020 normals, Mineral Wells Airport station).

How hot do summers get in Millsap, TX?

The average high peaks at 96 °F in July, with about 111 days a year at 90 °F or more.

What kind of soil does 76066 have?

The USDA soil survey maps Thurber at the center of ZIP 76066: clay loam, moderately well drained, pH about 7.5 (slightly alkaline).

Did spring come early in Millsap, TX in 2026?

Spring leaf-out near 76066 came on Feb 7 in 2026, about the same as the 1991–2020 average (Feb 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Millsap, TX?

Intermediate onions: the longest day near 76066 is 14 h 18 min, so day-neutral types bulb best; long-day varieties may not bulb fully.