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 32309
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 32309 in zone 9a (the coldest night of a typical year: 20 to 25°F).
The nearest station, Monticello (10 mi SW), FL, is 12 miles from the ZIP's center: its last spring frost comes after February 25 in half of years and after March 17 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Monticello (10 mi SW), FL | 12 mi | 219 ft | February 25 | March 17 | December 3 | – |
| Tallahassee, FLTallahassee Regional Airport | 18 mi | 63 ft | March 11 | March 30 | November 21 | 9a |
| Tallahassee Airport, FL | 20 mi | 55 ft | March 14 | April 3 | November 23 | – |
| Monticello, FL5 mi SE | 20 mi | 98 ft | March 7 | March 25 | November 23 | – |
| Cairo, GA1 mi SW | 21 mi | 201 ft | March 11 | March 31 | November 21 | – |
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 Monticello (10 mi SW)
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) | April 1 | March 20 | March 12 | February 18 | November 18 | November 1 |
| 32°F | March 17 | March 5 | February 25 | January 25 | December 3 | November 13 |
| 28°F (hard freeze) | March 5 | February 18 | February 4 | January 1 | December 27 | November 29 |
| 24°F | February 20 | February 4 | January 25 | December 23 | January 6 | December 7 |
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.