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 30038
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 30038 in zone 8a (the coldest night of a typical year: 10 to 15°F).
The nearest station, McDonough, GA, is 14 miles from the ZIP's center: its last spring frost comes after March 31 in half of years and after April 16 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| McDonough, GA5 mi ENE | 14 mi | 708 ft | March 31 | April 16 | November 6 | – |
| Jonesboro, GA | 15 mi | 930 ft | March 25 | April 10 | November 12 | 8b |
| Chamblee, GAAtlanta Peachtree Airport | 17 mi | 1,002 ft | March 25 | April 12 | November 9 | 8b |
| Atlanta, GAAtlanta Hartsfield International Airport | 18 mi | 1,010 ft | March 15 | April 4 | November 20 | 8b |
| Covington, GA | 18 mi | 769 ft | March 22 | April 6 | November 14 | 8a |
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 McDonough
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 28 | April 19 | April 11 | March 25 | October 27 | October 16 |
| 32°F | April 16 | April 5 | March 31 | March 8 | November 6 | October 24 |
| 28°F (hard freeze) | April 4 | March 26 | March 16 | February 20 | November 17 | November 1 |
| 24°F | March 25 | March 12 | March 1 | February 2 | December 3 | November 11 |
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.