Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 75686 — Pittsburg, TX

ZIP code 75686 (Pittsburg, Camp County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 8 and the first fall frost November 22.

Where ZIP 75686 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.

Zone8b15 to 20 °F

Coldest night−9.4 to −6.7 °C

Last frostMar 8

First frostNov 22

2012 zone8a

Was 8a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Pittsburg, 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 Pittsburg, TX

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostMarch 8median — 50% chance of a later frost

Safe for tender plantsMarch 27only 10% chance of frost after

First fall frostNovember 22median — 10% chance by Nov 4

Growing season259 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 24 and returns around December 4.

From the NOAA station Daingerfield 9 S, TX — 13 miles away, elevation 299 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 75686

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 25 – Feb 8

SpinachSow outdoors · Jan 25 – Feb 15

Broccoli, cabbageStart indoors · Dec 28 – Jan 11

Broccoli, cabbageTransplant · Feb 15 – Mar 1

Onion setsPlant outdoors · Feb 8 – Feb 22

PotatoesPlant outdoors · Feb 15 – Mar 1

LettuceSow outdoors · Feb 8 – Feb 22

Carrots, beetsSow outdoors · Feb 15 – Mar 1

TomatoesStart indoors · Jan 11 – Jan 25

TomatoesTransplant · Mar 15 – Mar 29

Peppers, eggplantStart indoors · Dec 28 – Jan 11

Peppers, eggplantTransplant · Mar 22 – Apr 5

BeansSow outdoors · Mar 15 – Mar 29

Sweet cornSow outdoors · Mar 15 – Mar 29

Cucumbers, squashSow outdoors · Mar 15 – Mar 29

Fall lettuce, spinachSow outdoors · Sep 27 – Oct 11

GarlicPlant cloves · Nov 8 – Dec 13

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 8) and first fall frost (Nov 22) 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 75686 came on Feb 9 — 4 days later than the 1991–2020 average (Feb 5).

average
Feb 52026
Feb 9

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 Pittsburg, TX

The soil mapped at the center of ZIP 75686 is Lilbert — loamy fine sand, well drained.

TextureLoamy fine sanddrains and warms fast; dries out and needs more feeding

pH5.3strongly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter1.25%low — add compost

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Lilbert loamy fine sand, 2 to 5 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 75686; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Pittsburg, TX

Summer high93 °Faverage high, August

Winter low35 °Faverage low, January

Hot days96days a year at 90 °F or more

Freezing nights34nights a year at 32 °F or less

Growing degree days6,021base 50 °F — the season’s usable heat

Longest day14 h 20 mindaylight on June 21

Shortest day9 h 58 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation47.5 inper year, rain and melted snow

Snowfall1 inper year

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Daingerfield 9 S, TX (13 mi away); precipitation: Pittsburg 5 Sse, TX (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

Daingerfield, TX · 13 mi

754568b

Mount Pleasant, TX · 13 mi

754808b

Scroggins, TX · 15 mi

Texas planting zones →

Questions about 75686

What planting zone is ZIP code 75686?

ZIP code 75686 (Pittsburg, TX) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Pittsburg, TX?

The median last spring frost (32 °F) near 75686 is March 8; after March 27 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Daingerfield 9 S station.

When is the first frost in Pittsburg, TX?

The median first fall frost near 75686 is November 22, giving a median frost-free growing season of 259 days.

When should I plant tomatoes in 75686?

Start tomato seeds indoors around Jan 11 – Jan 25 and set transplants outside around Mar 15 – Mar 29, one to three weeks after the median last frost.

How much rain and snow does 75686 get?

About 47.5 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Pittsburg 5 Sse station).

How hot do summers get in Pittsburg, TX?

The average high peaks at 93 °F in August, with about 96 days a year at 90 °F or more.

What kind of soil does 75686 have?

The USDA soil survey maps Lilbert at the center of ZIP 75686: loamy fine sand, well drained, pH about 5.3 (strongly acidic).

Did spring come early in Pittsburg, TX in 2026?

Spring leaf-out near 75686 came on Feb 9 in 2026, 4 days later than the 1991–2020 average (Feb 5), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Pittsburg, TX?

Intermediate onions: the longest day near 75686 is 14 h 20 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 75686 change?

Yes. The 2012 USDA map put 75686 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.