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 32909
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 32909 in zone 10a (the coldest night of a typical year: 30 to 35°F).
The nearest station, Palm Bay, FL, is 1 miles from the ZIP's center: its last spring frost comes after January 30 in half of years and after March 1 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Palm Bay, FL | 1 mi | 27 ft | January 30 | March 1 | January 11 | – |
| Melbourne Beach, FLMelbourne Beach A1a | 13 mi | 12 ft | January 16 | February 13 | January 13 | – |
| Melbourne, FLMelbourne International Airport | 14 mi | 27 ft | January 20 | February 14 | January 12 | 10a |
| Melbourne Weather Office, FL | 15 mi | 35 ft | January 24 | February 24 | January 9 | – |
| Vero Beach (4 mi SE), FL | 23 mi | 20 ft | January 18 | February 11 | January 13 | – |
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 Palm Bay
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 13 | February 24 | February 11 | January 10 | January 1 | December 6 |
| 32°F | March 1 | February 10 | January 30 | January 1 | January 11 | December 21 |
| 28°F (hard freeze) | February 15 | February 1 | January 19 | December 29 | January 14 | December 27 |
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.