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

Planting zone for 23964 — Red Oak, VA

ZIP code 23964 (Red Oak, Charlotte County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 6 and the first fall frost November 1.

Where ZIP 23964 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 6
First frostNov 1
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 Red Oak, 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 Red Oak, VA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 6median — 50% chance of a later frost
Safe for tender plantsApril 21only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 19
Growing season209 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 25 and returns around November 11.

From the NOAA station Chase City, VA — 9 miles away, elevation 509 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 23964

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 23 – Mar 9
SpinachSow outdoors · Feb 23 – Mar 16
Broccoli, cabbageStart indoors · Jan 26 – Feb 9
Broccoli, cabbageTransplant · Mar 16 – Mar 30
Onion setsPlant outdoors · Mar 9 – Mar 23
PotatoesPlant outdoors · Mar 16 – Mar 30
LettuceSow outdoors · Mar 9 – Mar 23
Carrots, beetsSow outdoors · Mar 16 – Mar 30
TomatoesStart indoors · Feb 9 – Feb 23
TomatoesTransplant · Apr 13 – Apr 27
Peppers, eggplantStart indoors · Jan 26 – Feb 9
Peppers, eggplantTransplant · Apr 20 – May 4
BeansSow outdoors · Apr 13 – Apr 27
Sweet cornSow outdoors · Apr 13 – Apr 27
Cucumbers, squashSow outdoors · Apr 13 – Apr 27
Fall lettuce, spinachSow outdoors · Sep 6 – Sep 20
GarlicPlant cloves · Oct 18 – Nov 22
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 6) and first fall frost (Nov 1) 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 23964 came on Mar 2 — 3 days later than the 1991–2020 average (Feb 27).

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 Red Oak, VA

The soil mapped at the center of ZIP 23964 is Goldston — silt loam, well drained.

TextureSilt loama good balance for most vegetables
pH4.6strongly 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: Goldston silt loam, 15 to 35 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 23964; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Red Oak, VA

Summer high89 °Faverage high, July
Winter low29 °Faverage low, January
Hot days40days a year at 90 °F or more
Freezing nights94nights a year at 32 °F or less
Growing degree days4,354base 50 °F — the season’s usable heat
Longest day14 h 41 mindaylight on June 21
Shortest day9 h 38 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation45.8 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 49 °F, low 29 °F 49°29° JanFebruary: average high 53 °F, low 31 °F 53°31° FebMarch: average high 60 °F, low 36 °F 60°36° MarApril: average high 71 °F, low 45 °F 71°45° AprMay: average high 78 °F, low 55 °F 78°55° MayJune: average high 85 °F, low 64 °F 85°64° JunJuly: average high 89 °F, low 68 °F 89°68° JulAugust: average high 87 °F, low 66 °F 87°66° AugSeptember: average high 81 °F, low 60 °F 81°60° SepOctober: average high 71 °F, low 47 °F 71°47° OctNovember: average high 61 °F, low 37 °F 61°37° NovDecember: average high 52 °F, low 31 °F 52°31° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.94 in precipitation 3.9 JanFebruary: 2.77 in precipitation 2.8 FebMarch: 3.93 in precipitation 3.9 MarApril: 3.29 in precipitation 3.3 AprMay: 4.22 in precipitation 4.2 MayJune: 4.31 in precipitation 4.3 JunJuly: 4.30 in precipitation 4.3 JulAugust: 3.70 in precipitation 3.7 AugSeptember: 4.81 in precipitation 4.8 SepOctober: 3.60 in precipitation 3.6 OctNovember: 3.16 in precipitation 3.2 NovDecember: 3.81 in precipitation 3.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Chase City, VA (9 mi away); precipitation: Saxe 4.3 Se, VA (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

239767b
Wylliesburg, VA · 6 mi
245897b
Scottsburg, VA · 7 mi
239687b
Skipwith, VA · 8 mi
239677b
Saxe, VA · 10 mi
245347b
Clover, VA · 10 mi
245297b
Buffalo Junction, VA · 11 mi
239247b
Chase City, VA · 12 mi
239627b
Randolph, VA · 12 mi

Virginia planting zones →

Questions about 23964

What planting zone is ZIP code 23964?

ZIP code 23964 (Red Oak, 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 Red Oak, VA?

The median last spring frost (32 °F) near 23964 is April 6; after April 21 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Chase City station.

When is the first frost in Red Oak, VA?

The median first fall frost near 23964 is November 1, giving a median frost-free growing season of 209 days.

When should I plant tomatoes in 23964?

Start tomato seeds indoors around Feb 9 – Feb 23 and set transplants outside around Apr 13 – Apr 27, one to three weeks after the median last frost.

How much rain and snow does 23964 get?

About 45.8 inches of precipitation a year (NOAA 1991–2020 normals, Saxe 4.3 Se station).

How hot do summers get in Red Oak, VA?

The average high peaks at 89 °F in July, with about 40 days a year at 90 °F or more.

What kind of soil does 23964 have?

The USDA soil survey maps Goldston at the center of ZIP 23964: silt loam, well drained, pH about 4.6 (strongly acidic).

Did spring come early in Red Oak, VA in 2026?

Spring leaf-out near 23964 came on Mar 2 in 2026, 3 days later than the 1991–2020 average (Feb 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Red Oak, VA?

Intermediate onions: the longest day near 23964 is 14 h 41 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 23964 change?

Yes. The 2012 USDA map put 23964 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.