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

Planting zone for 33877 — Waverly, FL

ZIP code 33877 (Waverly, Polk County) is in USDA zone 10a: the coldest winter night averages 30 to 35 °F.

Where ZIP 33877 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 zone9b

Was 9b 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 10a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Waverly, 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 Mtn Lake, FL — 4 miles away, elevation 125 ft) the median growing season is 332 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 33877 came on Jan 12 — 3 days earlier than the 1991–2020 average (Jan 15).

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 Waverly, FL

The soil mapped at the center of ZIP 33877 is Myakka — fine sand, poorly drained.

TextureFine sanddrains and warms fast; dries out and needs more feeding
pH4.5strongly acidic; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter3.5%moderate
Hydrologic groupA/Ddrains fast once dried out; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Myakka-Immokolee-Urban land complex.

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 33877; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Waverly, FL

Summer high93 °Faverage high, July
Winter low50 °Faverage low, January
Hot days129days a year at 90 °F or more
Freezing nights4nights a year at 32 °F or less
Growing degree days8,758base 50 °F — the season’s usable heat
Longest day13 h 55 mindaylight on June 21
Shortest day10 h 22 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation52.8 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 50 °F 75°50° JanFebruary: average high 78 °F, low 53 °F 78°53° FebMarch: average high 82 °F, low 56 °F 82°56° MarApril: average high 86 °F, low 61 °F 86°61° AprMay: average high 90 °F, low 66 °F 90°66° MayJune: average high 92 °F, low 71 °F 92°71° JunJuly: average high 93 °F, low 73 °F 93°73° JulAugust: average high 93 °F, low 73 °F 93°73° AugSeptember: average high 91 °F, low 72 °F 91°72° SepOctober: average high 86 °F, low 66 °F 86°66° OctNovember: average high 80 °F, low 58 °F 80°58° NovDecember: average high 76 °F, low 53 °F 76°53° Dec

Precipitation by month inches

0″2″4″6″8″January: 2.64 in precipitation 2.6 JanFebruary: 2.19 in precipitation 2.2 FebMarch: 2.76 in precipitation 2.8 MarApril: 2.42 in precipitation 2.4 AprMay: 3.56 in precipitation 3.6 MayJune: 8.92 in precipitation 8.9 JunJuly: 7.81 in precipitation 7.8 JulAugust: 8.06 in precipitation 8.1 AugSeptember: 6.89 in precipitation 6.9 SepOctober: 3.25 in precipitation 3.3 OctNovember: 1.82 in precipitation 1.8 NovDecember: 2.45 in precipitation 2.5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mtn Lake, FL (4 mi away); precipitation: Mtn Lake, FL (4 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.

3382010a
Alturas, FL · 1 mi
3384510a
Haines City, FL · 1 mi
3388510a
Winter Haven, FL · 1 mi
3383810a
Dundee, FL · 2 mi
3388410a
Winter Haven, FL · 4 mi
3385110a
Lake Hamilton, FL · 4 mi
338539b
Lake Wales, FL · 6 mi
3385910a
Lake Wales, FL · 7 mi

Florida planting zones →

Questions about 33877

What planting zone is ZIP code 33877?

ZIP code 33877 (Waverly, 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 33877 get?

About 52.8 inches of precipitation a year (NOAA 1991–2020 normals, Mtn Lake station).

How hot do summers get in Waverly, FL?

The average high peaks at 93 °F in July, with about 129 days a year at 90 °F or more.

What kind of soil does 33877 have?

The USDA soil survey maps Myakka at the center of ZIP 33877: fine sand, poorly drained, pH about 4.5 (strongly acidic).

Did spring come early in Waverly, FL in 2026?

Spring leaf-out near 33877 came on Jan 12 in 2026, 3 days earlier than the 1991–2020 average (Jan 15), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Waverly, FL?

Short-day onions: the longest day near 33877 is 13 h 55 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 33877 change?

Yes. The 2012 USDA map put 33877 in zone 9b; the 2023 map puts it in zone 10a. The newer map uses 1991–2020 data and more weather stations.