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

Planting zone for 33947 — Rotonda West, FL

ZIP code 33947 (Rotonda West, Charlotte County) is in USDA zone 10b: the coldest winter night averages 35 to 40 °F.

Where ZIP 33947 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.

Zone10b35 to 40 °F

Coldest night1.7 to 4.4 °C

Last frostrare

First frostrare

2012 zone10a

Was 10a 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 10b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Rotonda West, 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 Punta Gorda 4 Ese, FL — 17 miles away, elevation 20 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 33947 came on Jan 12 — about the same time as the 1991–2020 average (Jan 14).

average
Jan 142026
Jan 12

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.

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 Rotonda West, FL.

Soil in Rotonda West, FL

The soil mapped at the center of ZIP 33947 is Kesson — fine sand, very poorly drained.

TextureFine sanddrains and warms fast; dries out and needs more feeding

pH8.0alkaline; most vegetables like 6.0–7.0

DrainageVery poorly drainedconsider raised beds

Organic matter2%moderate

Hydrologic groupA/Ddrains fast once dried out; wet otherwise

Farmland classNot prime farmlandUSDA classification

Map unit: Kesson fine sand, tidal, 0 to 1 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 33947; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Rotonda West, FL

Summer high94 °Faverage high, July

Winter low53 °Faverage low, January

Hot days136days a year at 90 °F or more

Freezing nights1nights a year at 32 °F or less

Growing degree days9,426base 50 °F — the season’s usable heat

Longest day13 h 50 mindaylight on June 21

Shortest day10 h 27 mindaylight on December 21

Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb

Precipitation58.2 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Punta Gorda 4 Ese, FL (17 mi away); precipitation: Port Charlotte 6.2 W, FL (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

4 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

Port Charlotte, FL · 4 mi

Boca Grande, FL · 8 mi

3395310a

Port Charlotte, FL · 9 mi

3394810a

Port Charlotte, FL · 10 mi

Florida planting zones →

Questions about 33947

What planting zone is ZIP code 33947?

ZIP code 33947 (Rotonda West, FL) is in USDA hardiness zone 10b on the 2023 map: the coldest night of an average winter reaches 35 to 40 °F (1.7 to 4.4 °C).

How much rain and snow does 33947 get?

About 58.2 inches of precipitation a year (NOAA 1991–2020 normals, Port Charlotte 6.2 W station).

How hot do summers get in Rotonda West, FL?

The average high peaks at 94 °F in July, with about 136 days a year at 90 °F or more.

What kind of soil does 33947 have?

The USDA soil survey maps Kesson at the center of ZIP 33947: fine sand, very poorly drained, pH about 8.0 (alkaline).

Did spring come early in Rotonda West, FL in 2026?

Spring leaf-out near 33947 came on Jan 12 in 2026, about the same as the 1991–2020 average (Jan 14), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Rotonda West, FL?

Short-day onions: the longest day near 33947 is 13 h 50 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 33947 change?

Yes. The 2012 USDA map put 33947 in zone 10a; the 2023 map puts it in zone 10b. The newer map uses 1991–2020 data and more weather stations.