Frost dates by ZIP code: The nearest NOAA stations to your ZIP, 1991-2020 normals
Enter a five-digit ZIP code. PlainClimate finds its center (Census Bureau 2024) and the five nearest NOAA stations with frost dates, and shows each station's last spring and first autumn 32°F dates with its distance and elevation.
Frost dates near ZIP 33880
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 33880 in zone 10a (the coldest night of a typical year: 30 to 35°F).
The nearest station, Winter Haven station, FL, is 3 miles from the ZIP's center: a night at 32°F or colder comes there in only 38% of years, and NOAA's median date of the last spring frost is January 16.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Winter Haven station, FL | 3 mi | 145 ft | January 16 | February 15 | January 9 | – |
| Winter Haven, FLWinter Haven Gilbert Airport | 5 mi | 146 ft | January 15 | February 7 | January 10 | 10a |
| Bartow, FL1 mi SE | 8 mi | 111 ft | January 24 | February 20 | January 7 | 10a |
| Lake Wales, FLMountain Lake | 12 mi | 125 ft | February 4 | March 11 | January 4 | 9b |
| Lakeland, FLLakeland 2 | 14 mi | 139 ft | January 26 | February 21 | January 9 | 9b |
Frost comes later in spring at higher and colder stations and earlier in low, open ground: prefer a station at a similar elevation to yours. Hardiness zone in the table: the USDA's rule (the average of each year's coldest night, 1991-2020) applied to the station's own record.
Every frost threshold at Winter Haven station
NOAA publishes the dates for several temperatures and odds. A 30% spring date means a 3-in-10 chance of a later frost (the convention almanacs use); 50% is the median; 10% the cautious date.
| Threshold | Spring, 10% | Spring, 30% | Spring, 50% | Spring, 90% | Autumn, 50% | Autumn, 10% |
|---|---|---|---|---|---|---|
| 36°F (light frost) | March 1 | February 8 | January 28 | December 31 | January 5 | December 10 |
| 32°F | February 15 | January 30 | January 16 | December 29 | January 9 | December 23 |
Source: NOAA NCEI 1991-2020 annual normals; ZIP centers: Census Bureau 2024 Gazetteer; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. Autumn 10%: one year in ten has its first frost before this date.