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

Planting zone for 41007 — California, KY

ZIP code 41007 (California, Campbell County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 16 and the first fall frost October 31.

Where ZIP 41007 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.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostApr 16
First frostOct 31
2012 zone6b

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 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for California, KY…

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 California, KY

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 16median — 50% chance of a later frost
Safe for tender plantsMay 4only 10% chance of frost after
First fall frostOctober 31median — 10% chance by Oct 17
Growing season196 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 3 and returns around November 9.

From the NOAA station Chilo Meldahl Locks & Dam, OH — 10 miles away, elevation 479 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 41007

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 5 – Mar 19
SpinachSow outdoors · Mar 5 – Mar 26
Broccoli, cabbageStart indoors · Feb 5 – Feb 19
Broccoli, cabbageTransplant · Mar 26 – Apr 9
Onion setsPlant outdoors · Mar 19 – Apr 2
PotatoesPlant outdoors · Mar 26 – Apr 9
LettuceSow outdoors · Mar 19 – Apr 2
Carrots, beetsSow outdoors · Mar 26 – Apr 9
TomatoesStart indoors · Feb 19 – Mar 5
TomatoesTransplant · Apr 23 – May 7
Peppers, eggplantStart indoors · Feb 5 – Feb 19
Peppers, eggplantTransplant · Apr 30 – May 14
BeansSow outdoors · Apr 23 – May 7
Sweet cornSow outdoors · Apr 23 – May 7
Cucumbers, squashSow outdoors · Apr 23 – May 7
Fall lettuce, spinachSow outdoors · Sep 5 – Sep 19
GarlicPlant cloves · Oct 17 – Nov 21
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 16) and first fall frost (Oct 31) 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 41007 came on Mar 8 — 9 days earlier than the 1991–2020 average (Mar 17).

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 California, KY

The soil mapped at the center of ZIP 41007 is Eden — silty clay loam, well drained.

TextureSilty clay loamholds water and nutrients; slow to drain and warm up
pH6.5neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.75%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Eden silty clay loam, 12 to 20 percent slopes, eroded.

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 41007; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in California, KY

Summer high87 °Faverage high, July
Winter low23 °Faverage low, January
Hot days24days a year at 90 °F or more
Freezing nights104nights a year at 32 °F or less
Growing degree days3,769base 50 °F — the season’s usable heat
Longest day14 h 54 mindaylight on June 21
Shortest day9 h 26 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation42.2 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 41 °F, low 23 °F 41°23° JanFebruary: average high 46 °F, low 25 °F 46°25° FebMarch: average high 55 °F, low 32 °F 55°32° MarApril: average high 66 °F, low 41 °F 66°41° AprMay: average high 75 °F, low 52 °F 75°52° MayJune: average high 83 °F, low 61 °F 83°61° JunJuly: average high 87 °F, low 65 °F 87°65° JulAugust: average high 86 °F, low 64 °F 86°64° AugSeptember: average high 81 °F, low 57 °F 81°57° SepOctober: average high 69 °F, low 45 °F 69°45° OctNovember: average high 56 °F, low 35 °F 56°35° NovDecember: average high 45 °F, low 28 °F 45°28° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 2.97 in precipitation 3.0 JanFebruary: 3.31 in precipitation 3.3 FebMarch: 4.31 in precipitation 4.3 MarApril: 4.06 in precipitation 4.1 AprMay: 4.62 in precipitation 4.6 MayJune: 4.02 in precipitation 4.0 JunJuly: 4.06 in precipitation 4.1 JulAugust: 3.15 in precipitation 3.1 AugSeptember: 2.79 in precipitation 2.8 SepOctober: 2.74 in precipitation 2.7 OctNovember: 2.84 in precipitation 2.8 NovDecember: 3.29 in precipitation 3.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Chilo Meldahl Locks & Dam, OH (10 mi away); precipitation: Chilo Meldahl Locks & Dam, OH (10 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.

410016b
Alexandria, KY · 5 mi
410726b
Newport, KY · 6 mi
451576b
New Richmond, OH · 6 mi
451536b
Moscow, OH · 7 mi
410596b
Melbourne, KY · 8 mi
451567a
Neville, OH · 8 mi
410066b
Butler, KY · 8 mi
410536b
Kenton, KY · 8 mi

Kentucky planting zones →

Questions about 41007

What planting zone is ZIP code 41007?

ZIP code 41007 (California, KY) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in California, KY?

The median last spring frost (32 °F) near 41007 is April 16; after May 4 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Chilo Meldahl Locks & Dam station.

When is the first frost in California, KY?

The median first fall frost near 41007 is October 31, giving a median frost-free growing season of 196 days.

When should I plant tomatoes in 41007?

Start tomato seeds indoors around Feb 19 – Mar 5 and set transplants outside around Apr 23 – May 7, one to three weeks after the median last frost.

How much rain and snow does 41007 get?

About 42.2 inches of precipitation a year (NOAA 1991–2020 normals, Chilo Meldahl Locks & Dam station).

How hot do summers get in California, KY?

The average high peaks at 87 °F in July, with about 24 days a year at 90 °F or more.

What kind of soil does 41007 have?

The USDA soil survey maps Eden at the center of ZIP 41007: silty clay loam, well drained, pH about 6.5 (neutral).

Did spring come early in California, KY in 2026?

Spring leaf-out near 41007 came on Mar 8 in 2026, 9 days earlier than the 1991–2020 average (Mar 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in California, KY?

Intermediate onions: the longest day near 41007 is 14 h 54 min, so day-neutral types bulb best; long-day varieties may not bulb fully.