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 32773
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 32773 in zone 9b (the coldest night of a typical year: 25 to 30°F).
The nearest station, Sanford, FL, is 2 miles from the ZIP's center: its last spring frost comes after January 24 in half of years and after February 23 in one year in ten. By the USDA's method its plant hardiness zone is 10a.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Sanford, FLOrlando Sanford Airport | 2 mi | 55 ft | January 24 | February 23 | January 9 | 10a |
| Sanford station, FL | 5 mi | 12 ft | January 26 | February 24 | January 12 | 10a |
| Orlando Executive Airport, FL | 15 mi | 108 ft | January 17 | February 9 | January 13 | 10a |
| Mount Plymouth, FL1 mi SSW | 18 mi | 90 ft | February 24 | March 20 | December 29 | – |
| DeLand, FLDeland (1 mi SSE) | 18 mi | 25 ft | February 17 | March 19 | December 30 | 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 Sanford
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 8 | February 21 | February 7 | January 8 | January 1 | December 4 |
| 32°F | February 23 | February 3 | January 24 | December 29 | January 9 | December 15 |
| 28°F (hard freeze) | February 8 | January 26 | January 14 | December 30 | January 11 | December 24 |
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.