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

Planting zone for 75415 — Ben Franklin, TX

ZIP code 75415 (Ben Franklin, Delta County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 18 and the first fall frost November 13.

Where ZIP 75415 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 18
First frostNov 13
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 Ben Franklin, 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 Ben Franklin, TX

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 18median — 50% chance of a later frost
Safe for tender plantsApril 1only 10% chance of frost after
First fall frostNovember 13median — 10% chance by Oct 30
Growing season241 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 6 and returns around November 26.

From the NOAA station Cooper Dam, TX — 12 miles away, elevation 463 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 75415

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 4 – Feb 18
SpinachSow outdoors · Feb 4 – Feb 25
Broccoli, cabbageStart indoors · Jan 7 – Jan 21
Broccoli, cabbageTransplant · Feb 25 – Mar 11
Onion setsPlant outdoors · Feb 18 – Mar 4
PotatoesPlant outdoors · Feb 25 – Mar 11
LettuceSow outdoors · Feb 18 – Mar 4
Carrots, beetsSow outdoors · Feb 25 – Mar 11
TomatoesStart indoors · Jan 21 – Feb 4
TomatoesTransplant · Mar 25 – Apr 8
Peppers, eggplantStart indoors · Jan 7 – Jan 21
Peppers, eggplantTransplant · Apr 1 – Apr 15
BeansSow outdoors · Mar 25 – Apr 8
Sweet cornSow outdoors · Mar 25 – Apr 8
Cucumbers, squashSow outdoors · Mar 25 – Apr 8
Fall lettuce, spinachSow outdoors · Sep 18 – Oct 2
GarlicPlant cloves · Oct 30 – Dec 4
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 18) and first fall frost (Nov 13) 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 75415 came on Feb 9 — about the same time as the 1991–2020 average (Feb 8).

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 Ben Franklin, TX

The soil mapped at the center of ZIP 75415 is Leson — clay, moderately well drained.

TextureClayholds water and nutrients; slow to drain and warm up
pH7.3neutral; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classprime farmlandUSDA classification

Map unit: Leson clay, 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 75415; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Ben Franklin, TX

Summer high94 °Faverage high, July
Winter low34 °Faverage low, January
Hot days91days a year at 90 °F or more
Freezing nights45nights a year at 32 °F or less
Growing degree days6,015base 50 °F — the season’s usable heat
Longest day14 h 22 mindaylight on June 21
Shortest day9 h 56 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation45.9 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 54 °F, low 34 °F 54°34° JanFebruary: average high 59 °F, low 38 °F 59°38° FebMarch: average high 66 °F, low 44 °F 66°44° MarApril: average high 75 °F, low 53 °F 75°53° AprMay: average high 82 °F, low 62 °F 82°62° MayJune: average high 90 °F, low 70 °F 90°70° JunJuly: average high 94 °F, low 74 °F 94°74° JulAugust: average high 94 °F, low 73 °F 94°73° AugSeptember: average high 88 °F, low 65 °F 88°65° SepOctober: average high 78 °F, low 54 °F 78°54° OctNovember: average high 66 °F, low 44 °F 66°44° NovDecember: average high 57 °F, low 37 °F 57°37° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 3.09 in precipitation 3.1 JanFebruary: 3.61 in precipitation 3.6 FebMarch: 4.53 in precipitation 4.5 MarApril: 4.60 in precipitation 4.6 AprMay: 5.35 in precipitation 5.3 MayJune: 3.45 in precipitation 3.5 JunJuly: 2.85 in precipitation 2.9 JulAugust: 2.62 in precipitation 2.6 AugSeptember: 3.25 in precipitation 3.3 SepOctober: 4.95 in precipitation 5.0 OctNovember: 3.72 in precipitation 3.7 NovDecember: 3.92 in precipitation 3.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Cooper Dam, TX (12 mi away); precipitation: Cooper, TX (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

754418b
Enloe, TX · 5 mi
754778b
Roxton, TX · 5 mi
754328b
Cooper, TX · 6 mi
754698b
Pecan Gap, TX · 7 mi
754708a
Petty, TX · 10 mi
754488b
Klondike, TX · 10 mi
754498b
Ladonia, TX · 13 mi
754218a
Brookston, TX · 14 mi

Texas planting zones →

Questions about 75415

What planting zone is ZIP code 75415?

ZIP code 75415 (Ben Franklin, 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 Ben Franklin, TX?

The median last spring frost (32 °F) near 75415 is March 18; after April 1 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Cooper Dam station.

When is the first frost in Ben Franklin, TX?

The median first fall frost near 75415 is November 13, giving a median frost-free growing season of 241 days.

When should I plant tomatoes in 75415?

Start tomato seeds indoors around Jan 21 – Feb 4 and set transplants outside around Mar 25 – Apr 8, one to three weeks after the median last frost.

How much rain and snow does 75415 get?

About 45.9 inches of precipitation a year (NOAA 1991–2020 normals, Cooper station).

How hot do summers get in Ben Franklin, TX?

The average high peaks at 94 °F in July, with about 91 days a year at 90 °F or more.

What kind of soil does 75415 have?

The USDA soil survey maps Leson at the center of ZIP 75415: clay, moderately well drained, pH about 7.3 (neutral).

Did spring come early in Ben Franklin, TX in 2026?

Spring leaf-out near 75415 came on Feb 9 in 2026, about the same as the 1991–2020 average (Feb 8), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Ben Franklin, TX?

Intermediate onions: the longest day near 75415 is 14 h 22 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 75415 change?

Yes. The 2012 USDA map put 75415 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.