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

Planting zone for 43526 — Hicksville, OH

ZIP code 43526 (Hicksville, Defiance County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is April 28 and the first fall frost October 17.

Where ZIP 43526 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.

Zone6a−10 to −5 °F
Coldest night−23.3 to −20.6 °C
Last frostApr 28
First frostOct 17
2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Hicksville, OH…

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 Hicksville, OH

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 28median — 50% chance of a later frost
Safe for tender plantsMay 13only 10% chance of frost after
First fall frostOctober 17median — 10% chance by Sep 29
Growing season170 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 17 and returns around October 30.

From the NOAA station Hicksville, OH — 2 miles away, elevation 751 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 43526

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 17 – Mar 31
SpinachSow outdoors · Mar 17 – Apr 7
Broccoli, cabbageStart indoors · Feb 17 – Mar 3
Broccoli, cabbageTransplant · Apr 7 – Apr 21
Onion setsPlant outdoors · Mar 31 – Apr 14
PotatoesPlant outdoors · Apr 7 – Apr 21
LettuceSow outdoors · Mar 31 – Apr 14
Carrots, beetsSow outdoors · Apr 7 – Apr 21
TomatoesStart indoors · Mar 3 – Mar 17
TomatoesTransplant · May 5 – May 19
Peppers, eggplantStart indoors · Feb 17 – Mar 3
Peppers, eggplantTransplant · May 12 – May 26
BeansSow outdoors · May 5 – May 19
Sweet cornSow outdoors · May 5 – May 19
Cucumbers, squashSow outdoors · May 5 – May 19
Fall lettuce, spinachSow outdoors · Aug 22 – Sep 5
GarlicPlant cloves · Oct 3 – Nov 7
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 28) and first fall frost (Oct 17) 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 43526 came on Mar 21 — 15 days earlier than the 1991–2020 average (Apr 5).

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 Hicksville, OH

The soil mapped at the center of ZIP 43526 is Lenawee — silty clay loam, poorly drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up
pH6.5neutral; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter4.8%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classPrime farmland if drainedUSDA classification

Map unit: Lenawee silty clay loam, 0 to 1 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 43526; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Hicksville, OH

Summer high85 °Faverage high, July
Winter low17 °Faverage low, January
Hot days22days a year at 90 °F or more
Freezing nights143nights a year at 32 °F or less
Growing degree days3,043base 50 °F — the season’s usable heat
Longest day15 h 10 mindaylight on June 21
Shortest day9 h 11 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation35.1 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 33 °F, low 17 °F 33°17° JanFebruary: average high 37 °F, low 19 °F 37°19° FebMarch: average high 47 °F, low 28 °F 47°28° MarApril: average high 61 °F, low 37 °F 61°37° AprMay: average high 72 °F, low 48 °F 72°48° MayJune: average high 81 °F, low 59 °F 81°59° JunJuly: average high 85 °F, low 61 °F 85°61° JulAugust: average high 83 °F, low 60 °F 83°60° AugSeptember: average high 77 °F, low 51 °F 77°51° SepOctober: average high 64 °F, low 42 °F 64°42° OctNovember: average high 50 °F, low 31 °F 50°31° NovDecember: average high 38 °F, low 23 °F 38°23° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 2.29 in precipitation 2.3 JanFebruary: 1.94 in precipitation 1.9 FebMarch: 2.31 in precipitation 2.3 MarApril: 3.52 in precipitation 3.5 AprMay: 4.37 in precipitation 4.4 MayJune: 3.67 in precipitation 3.7 JunJuly: 2.83 in precipitation 2.8 JulAugust: 3.28 in precipitation 3.3 AugSeptember: 2.94 in precipitation 2.9 SepOctober: 2.59 in precipitation 2.6 OctNovember: 3.09 in precipitation 3.1 NovDecember: 2.27 in precipitation 2.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Hicksville, OH (2 mi away); precipitation: Hicksville, OH (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6a.

435366a
Mark Center, OH · 5 mi
435206a
Farmer, OH · 7 mi
467856a
Saint Joe, IN · 8 mi
458136a
Antwerp, OH · 8 mi
435176a
Edgerton, OH · 8 mi
435566a
Sherwood, OH · 9 mi
467436a
Harlan, IN · 9 mi
467886a
Spencerville, IN · 10 mi

Ohio planting zones →

Questions about 43526

What planting zone is ZIP code 43526?

ZIP code 43526 (Hicksville, OH) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Hicksville, OH?

The median last spring frost (32 °F) near 43526 is April 28; after May 13 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Hicksville station.

When is the first frost in Hicksville, OH?

The median first fall frost near 43526 is October 17, giving a median frost-free growing season of 170 days.

When should I plant tomatoes in 43526?

Start tomato seeds indoors around Mar 3 – Mar 17 and set transplants outside around May 5 – May 19, one to three weeks after the median last frost.

How much rain and snow does 43526 get?

About 35.1 inches of precipitation a year (NOAA 1991–2020 normals, Hicksville station).

How hot do summers get in Hicksville, OH?

The average high peaks at 85 °F in July, with about 22 days a year at 90 °F or more.

What kind of soil does 43526 have?

The USDA soil survey maps Lenawee at the center of ZIP 43526: silty clay loam, poorly drained, pH about 6.5 (neutral).

Did spring come early in Hicksville, OH in 2026?

Spring leaf-out near 43526 came on Mar 21 in 2026, 15 days earlier than the 1991–2020 average (Apr 5), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Hicksville, OH?

Long-day onions: the longest day near 43526 is 15 h 10 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).