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 31905
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 31905 in zone 8b (the coldest night of a typical year: 15 to 20°F).
The nearest station, Fort Benning Lawson Field, GA, is 9 miles from the ZIP's center: its last spring frost comes after March 26 in half of years and after April 13 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Fort Benning Lawson Field, GA | 9 mi | 289 ft | March 26 | April 13 | November 8 | – |
| Columbus #2, GA | 11 mi | 435 ft | March 21 | April 9 | November 11 | – |
| Columbus, GAColumbus Metropolitan Airport | 11 mi | 392 ft | March 5 | March 24 | November 23 | 8b |
| Mulberry Grove, GA | 21 mi | 501 ft | March 21 | April 13 | November 18 | – |
| Lumpkin, GA2 mi SE | 24 mi | 485 ft | April 1 | April 20 | November 4 | – |
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 Fort Benning Lawson Field
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 23 | April 14 | April 7 | March 22 | October 30 | October 18 |
| 32°F | April 13 | April 2 | March 26 | March 4 | November 8 | October 27 |
| 28°F (hard freeze) | March 31 | March 18 | March 11 | February 17 | November 20 | November 6 |
| 24°F | March 16 | March 5 | February 24 | January 27 | December 4 | November 13 |
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.