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

Planting zone for 33438 — Canal Point, FL

ZIP code 33438 (Canal Point, Palm Beach County) is in USDA zone 10a: the coldest winter night averages 30 to 35 °F.

Where ZIP 33438 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.

Zone10a30 to 35 °F

Coldest night−1.1 to 1.7 °C

Last frostrare

First frostrare

2012 zone10a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 10a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Canal Point, 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 Port Salerno 5w, FL — 18 miles away, elevation 13 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 33438 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 10a in Florida

480 plants native to the lower 48 states, recorded in Florida, and rated by the USDA to survive 30 °F or colder — the bottom of zone 10a. 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 Canal Point, FL.

Soil in Canal Point, FL

The soil mapped at the center of ZIP 33438 is Floridana — fine sand, very poorly drained.

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

pH6.3slightly acidic; most vegetables like 6.0–7.0

DrainageVery poorly drainedconsider raised beds

Organic matter6%high

Hydrologic groupC/Dslow when drained; wet otherwise

Farmland classFarmland of unique importanceUSDA classification

Map unit: Floridana fine sand, frequently ponded, 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 33438; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Canal Point, FL

Summer high92 °Faverage high, July

Winter low57 °Faverage low, January

Hot days106days a year at 90 °F or more

Freezing nights0nights a year at 32 °F or less

Growing degree days9,598base 50 °F — the season’s usable heat

Longest day13 h 50 mindaylight on June 21

Shortest day10 h 26 mindaylight on December 21

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

Precipitation55.5 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: Canal Pt Usda, FL (10 mi away); precipitation: Canal Pt Usda, FL (10 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

3495610a

Indiantown, FL · 9 mi

3347610b

Pahokee, FL · 15 mi

3499010a

Palm City, FL · 15 mi

3347010b

Loxahatchee, FL · 16 mi

Palm City, FL · 21 mi

3495310a

Port Saint Lucie, FL · 21 mi

Florida planting zones →

Questions about 33438

What planting zone is ZIP code 33438?

ZIP code 33438 (Canal Point, FL) is in USDA hardiness zone 10a on the 2023 map: the coldest night of an average winter reaches 30 to 35 °F (−1.1 to 1.7 °C).

How much rain and snow does 33438 get?

About 55.5 inches of precipitation a year (NOAA 1991–2020 normals, Canal Pt Usda station).

How hot do summers get in Canal Point, FL?

The average high peaks at 92 °F in July, with about 106 days a year at 90 °F or more.

What kind of soil does 33438 have?

The USDA soil survey maps Floridana at the center of ZIP 33438: fine sand, very poorly drained, pH about 6.3 (slightly acidic).

Did spring come early in Canal Point, FL in 2026?

Spring leaf-out near 33438 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 Canal Point, FL?

Short-day onions: the longest day near 33438 is 13 h 50 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.