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 30501
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 30501 in zone 8a (the coldest night of a typical year: 10 to 15°F).
The nearest station, Gainesville station, GA, is 3 miles from the ZIP's center: its last spring frost comes after March 27 in half of years and after April 11 in one year in ten. By the USDA's method its plant hardiness zone is 8a.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Gainesville station, GA | 3 mi | 1,170 ft | March 27 | April 11 | November 12 | 8a |
| Gainesville, GAGainesville Gilmer Airport | 3 mi | 1,275 ft | March 20 | April 6 | November 14 | 8b |
| Cleveland, GA | 19 mi | 1,567 ft | April 14 | May 2 | October 25 | 7b |
| Commerce, GA4 mi NNW | 19 mi | 820 ft | March 31 | April 14 | November 6 | 8a |
| Cumming, GA2 mi N | 19 mi | 1,140 ft | April 4 | April 19 | 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 Gainesville station
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 13 | April 7 | March 22 | November 1 | October 20 |
| 32°F | April 11 | April 2 | March 27 | March 6 | November 12 | October 31 |
| 28°F (hard freeze) | March 31 | March 20 | March 12 | February 19 | November 26 | November 7 |
| 24°F | March 19 | March 6 | February 24 | January 28 | December 13 | November 21 |
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.