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

Planting zone for 23923 — Charlotte Court House, VA

ZIP code 23923 (Charlotte Court House, Charlotte County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 10 and the first fall frost October 30.

Where ZIP 23923 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.

Zone7b5 to 10 °F

Coldest night−15 to −12.2 °C

Last frostApr 10

First frostOct 30

2012 zone7a

Was 7a 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 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Charlotte Court House, VA…

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 Charlotte Court House, VA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 10median — 50% chance of a later frost

Safe for tender plantsApril 23only 10% chance of frost after

First fall frostOctober 30median — 10% chance by Oct 17

Growing season201 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 29 and returns around November 8.

From the NOAA station Charlotte Court House, VA — 2 miles away, elevation 568 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 23923

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 27 – Mar 13

SpinachSow outdoors · Feb 27 – Mar 20

Broccoli, cabbageStart indoors · Jan 30 – Feb 13

Broccoli, cabbageTransplant · Mar 20 – Apr 3

Onion setsPlant outdoors · Mar 13 – Mar 27

PotatoesPlant outdoors · Mar 20 – Apr 3

LettuceSow outdoors · Mar 13 – Mar 27

Carrots, beetsSow outdoors · Mar 20 – Apr 3

TomatoesStart indoors · Feb 13 – Feb 27

TomatoesTransplant · Apr 17 – May 1

Peppers, eggplantStart indoors · Jan 30 – Feb 13

Peppers, eggplantTransplant · Apr 24 – May 8

BeansSow outdoors · Apr 17 – May 1

Sweet cornSow outdoors · Apr 17 – May 1

Cucumbers, squashSow outdoors · Apr 17 – May 1

Fall lettuce, spinachSow outdoors · Sep 4 – Sep 18

GarlicPlant cloves · Oct 16 – Nov 20

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 10) and first fall frost (Oct 30) 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 23923 came on Mar 6 — 4 days later than the 1991–2020 average (Mar 2).

average
Mar 22026
Mar 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 Charlotte Court House, VA

The soil mapped at the center of ZIP 23923 is Cecil — clay loam, well drained.

TextureClay loamholds water and nutrients; slow to drain and warm up

pH5.5moderately acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter0.75%low — add compost

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Cecil clay loam, 6 to 15 percent slopes, severely 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 23923; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Charlotte Court House, VA

Summer high87 °Faverage high, July

Winter low27 °Faverage low, January

Hot days27days a year at 90 °F or more

Freezing nights95nights a year at 32 °F or less

Growing degree days4,102base 50 °F — the season’s usable heat

Longest day14 h 43 mindaylight on June 21

Shortest day9 h 37 mindaylight on December 21

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

Precipitation46.6 inper year, rain and melted snow

Snowfall8 inper year; 5 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

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

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

Red House, VA · 11 mi

239677b

Saxe, VA · 11 mi

239477b

Keysville, VA · 12 mi

239377b

Drakes Branch, VA · 12 mi

245287b

Brookneal, VA · 12 mi

Virginia planting zones →

Questions about 23923

What planting zone is ZIP code 23923?

ZIP code 23923 (Charlotte Court House, VA) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Charlotte Court House, VA?

The median last spring frost (32 °F) near 23923 is April 10; after April 23 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Charlotte Court House station.

When is the first frost in Charlotte Court House, VA?

The median first fall frost near 23923 is October 30, giving a median frost-free growing season of 201 days.

When should I plant tomatoes in 23923?

Start tomato seeds indoors around Feb 13 – Feb 27 and set transplants outside around Apr 17 – May 1, one to three weeks after the median last frost.

How much rain and snow does 23923 get?

About 46.6 inches of precipitation a year and 8 inches of snowfall (NOAA 1991–2020 normals, Charlotte Court House station).

How hot do summers get in Charlotte Court House, VA?

The average high peaks at 87 °F in July, with about 27 days a year at 90 °F or more.

What kind of soil does 23923 have?

The USDA soil survey maps Cecil at the center of ZIP 23923: clay loam, well drained, pH about 5.5 (moderately acidic).

Did spring come early in Charlotte Court House, VA in 2026?

Spring leaf-out near 23923 came on Mar 6 in 2026, 4 days later than the 1991–2020 average (Mar 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Charlotte Court House, VA?

Intermediate onions: the longest day near 23923 is 14 h 43 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 23923 change?

Yes. The 2012 USDA map put 23923 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.