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

Planting zone for Cape Coral, FL

Cape Coral, FL is in USDA zone 10b across its 8 ZIP codes.

Cape Coral on the zone map

Outlined: its 6 ZIP code areas · 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.

Zone10b35 to 40 °F
ZIP codes8
Last frostrare
First frostrare
Growing seasonall year

10b 8 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Cape Coral, FL…

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

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Ft Myers Page Field Airport, FL, elevation 16 ft) the median growing season is 365 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 33990 came on Jan 11 — about the same time as the 1991–2020 average (Jan 13).

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).

Native plants for zone 10b in Florida

497 plants native to the lower 48 states, recorded in Florida, and rated by the USDA to survive 35 °F or colder — the bottom of zone 10b. Each links to its USDA PLANTS profile.

Trees 70

Shrubs 118

Wildflowers & perennials 154

Grasses 135

Vines 12

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Cape Coral, FL.

Soil in Cape Coral, FL

The soil mapped at the center of ZIP 33990 is Matlacha — gravelly fine sand, somewhat poorly drained.

TextureGravelly fine sanddrains and warms fast; dries out and needs more feeding
pH7.0neutral; most vegetables like 6.0–7.0
DrainageSomewhat poorly drainedconsider raised beds
Organic matter1%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Matlacha gravelly fine sand, limestone substratum-Urban land complex, 0 to 2 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 33990; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Cape Coral, FL

Summer high92 °Faverage high, July
Winter low54 °Faverage low, January
Hot days120days a year at 90 °F or more
Freezing nights0nights a year at 32 °F or less
Growing degree days9,274base 50 °F — the season’s usable heat
Longest day13 h 49 mindaylight on June 21
Shortest day10 h 28 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation57.4 inper year, rain and melted snow

Average high and low, by month

40°50°60°70°80°90°100°January: average high 75 °F, low 54 °F 75°54° JanFebruary: average high 78 °F, low 57 °F 78°57° FebMarch: average high 81 °F, low 60 °F 81°60° MarApril: average high 85 °F, low 64 °F 85°64° AprMay: average high 90 °F, low 69 °F 90°69° MayJune: average high 91 °F, low 74 °F 91°74° JunJuly: average high 92 °F, low 75 °F 92°75° JulAugust: average high 92 °F, low 75 °F 92°75° AugSeptember: average high 90 °F, low 74 °F 90°74° SepOctober: average high 87 °F, low 69 °F 87°69° OctNovember: average high 81 °F, low 62 °F 81°62° NovDecember: average high 77 °F, low 57 °F 77°57° Dec

Precipitation by month inches

0″2″4″6″8″10″January: 2.43 in precipitation 2.4 JanFebruary: 1.78 in precipitation 1.8 FebMarch: 2.07 in precipitation 2.1 MarApril: 2.44 in precipitation 2.4 AprMay: 3.46 in precipitation 3.5 MayJune: 9.66 in precipitation 9.7 JunJuly: 9.38 in precipitation 9.4 JulAugust: 10.43 in precipitation 10.4 AugSeptember: 9.00 in precipitation 9.0 SepOctober: 3.08 in precipitation 3.1 OctNovember: 1.78 in precipitation 1.8 NovDecember: 1.90 in precipitation 1.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Ft Myers Page Field Airport, FL (6 mi away); precipitation: Ft Myers Page Field Airport, FL (6 mi away). Daylight is calculated from latitude.

ZIP codes in Cape Coral

Florida planting zones →

Questions about Cape Coral

What planting zone is Cape Coral, FL?

Cape Coral, FL is in USDA hardiness zone 10b on the 2023 map (10b: 35 to 40 °F).

What kind of onions grow in Cape Coral, FL?

Short-day onions: the longest day is 13 h 49 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

How much rain and snow does Cape Coral, FL get?

About 57.4 inches of precipitation a year (NOAA 1991–2020 normals).