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

Planting zone for 21672 — Toddville, MD

ZIP code 21672 (Toddville, Dorchester County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is April 8 and the first fall frost November 4.

Where ZIP 21672 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.

Zone8a10 to 15 °F
Coldest night−12.2 to −9.4 °C
Last frostApr 8
First frostNov 4
2012 zone7b

Was 7b 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 8a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Toddville, MD…

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 Toddville, MD

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 8median — 50% chance of a later frost
Safe for tender plantsApril 23only 10% chance of frost after
First fall frostNovember 4median — 10% chance by Oct 22
Growing season209 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 27 and returns around November 17.

From the NOAA station Vienna, MD — 19 miles away, elevation 10 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 21672

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 25 – Mar 11
SpinachSow outdoors · Feb 25 – Mar 18
Broccoli, cabbageStart indoors · Jan 28 – Feb 11
Broccoli, cabbageTransplant · Mar 18 – Apr 1
Onion setsPlant outdoors · Mar 11 – Mar 25
PotatoesPlant outdoors · Mar 18 – Apr 1
LettuceSow outdoors · Mar 11 – Mar 25
Carrots, beetsSow outdoors · Mar 18 – Apr 1
TomatoesStart indoors · Feb 11 – Feb 25
TomatoesTransplant · Apr 15 – Apr 29
Peppers, eggplantStart indoors · Jan 28 – Feb 11
Peppers, eggplantTransplant · Apr 22 – May 6
BeansSow outdoors · Apr 15 – Apr 29
Sweet cornSow outdoors · Apr 15 – Apr 29
Cucumbers, squashSow outdoors · Apr 15 – Apr 29
Fall lettuce, spinachSow outdoors · Sep 9 – Sep 23
GarlicPlant cloves · Oct 21 – Nov 25
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 8) and first fall frost (Nov 4) 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 21672 came on Mar 11 — 5 days later than the 1991–2020 average (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 Toddville, MD

The soil mapped at the center of ZIP 21672 is Sunken — peat, very poorly drained.

TexturePeattop layer
pH6.0slightly acidic; most vegetables like 6.0–7.0
DrainageVery poorly drainedconsider raised beds
Organic matter36.4%high
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Sunken mucky silt loam, 0 to 2 percent slopes, occasionally flooded, tidal.

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 21672; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Toddville, MD

Summer high90 °Faverage high, July
Winter low28 °Faverage low, January
Hot days43days a year at 90 °F or more
Freezing nights83nights a year at 32 °F or less
Growing degree days4,375base 50 °F — the season’s usable heat
Longest day14 h 50 mindaylight on June 21
Shortest day9 h 30 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation47.2 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 48 °F, low 28 °F 48°28° JanFebruary: average high 50 °F, low 29 °F 50°29° FebMarch: average high 58 °F, low 36 °F 58°36° MarApril: average high 69 °F, low 44 °F 69°44° AprMay: average high 78 °F, low 54 °F 78°54° MayJune: average high 86 °F, low 63 °F 86°63° JunJuly: average high 90 °F, low 69 °F 90°69° JulAugust: average high 88 °F, low 67 °F 88°67° AugSeptember: average high 82 °F, low 61 °F 82°61° SepOctober: average high 72 °F, low 49 °F 72°49° OctNovember: average high 61 °F, low 39 °F 61°39° NovDecember: average high 51 °F, low 31 °F 51°31° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.27 in precipitation 3.3 JanFebruary: 2.89 in precipitation 2.9 FebMarch: 4.07 in precipitation 4.1 MarApril: 3.78 in precipitation 3.8 AprMay: 4.04 in precipitation 4.0 MayJune: 4.13 in precipitation 4.1 JunJuly: 4.41 in precipitation 4.4 JulAugust: 4.57 in precipitation 4.6 AugSeptember: 4.41 in precipitation 4.4 SepOctober: 4.46 in precipitation 4.5 OctNovember: 3.30 in precipitation 3.3 NovDecember: 3.87 in precipitation 3.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Vienna, MD (19 mi away); precipitation: Princess Anne 4.4 Wsw, MD (17 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.

216758a
Wingate, MD · 2 mi
216278a
Crocheron, MD · 3 mi
216268a
Crapo, MD · 5 mi
216348a
Fishing Creek, MD · 8 mi
218408a
Nanticoke, MD · 8 mi
218148a
Bivalve, MD · 8 mi
218218a
Deal Island, MD · 10 mi
218697b
Vienna, MD · 11 mi

Maryland planting zones →

Questions about 21672

What planting zone is ZIP code 21672?

ZIP code 21672 (Toddville, MD) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).

When is the last frost in Toddville, MD?

The median last spring frost (32 °F) near 21672 is April 8; after April 23 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Vienna station.

When is the first frost in Toddville, MD?

The median first fall frost near 21672 is November 4, giving a median frost-free growing season of 209 days.

When should I plant tomatoes in 21672?

Start tomato seeds indoors around Feb 11 – Feb 25 and set transplants outside around Apr 15 – Apr 29, one to three weeks after the median last frost.

How much rain and snow does 21672 get?

About 47.2 inches of precipitation a year (NOAA 1991–2020 normals, Princess Anne 4.4 Wsw station).

How hot do summers get in Toddville, MD?

The average high peaks at 90 °F in July, with about 43 days a year at 90 °F or more.

What kind of soil does 21672 have?

The USDA soil survey maps Sunken at the center of ZIP 21672: peat, very poorly drained, pH about 6.0 (slightly acidic).

Did spring come early in Toddville, MD in 2026?

Spring leaf-out near 21672 came on Mar 11 in 2026, 5 days later than the 1991–2020 average (Mar 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Toddville, MD?

Intermediate onions: the longest day near 21672 is 14 h 50 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 21672 change?

Yes. The 2012 USDA map put 21672 in zone 7b; the 2023 map puts it in zone 8a. The newer map uses 1991–2020 data and more weather stations.