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 28806
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 28806 in zone 7b (the coldest night of a typical year: 5 to 10°F).
The nearest station, Enka, NC, is 3 miles from the ZIP's center: its last spring frost comes after April 12 in half of years and after April 27 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Enka, NC | 3 mi | 2,050 ft | April 12 | April 27 | October 23 | – |
| Asheville station, NC | 4 mi | 2,238 ft | April 6 | April 24 | October 31 | 7b |
| Bent Creek, NC | 5 mi | 2,110 ft | April 26 | May 12 | October 18 | 7a |
| Candler (1 mi W), NC | 5 mi | 2,240 ft | April 19 | May 7 | October 22 | – |
| Asheville (8 mi SSW), NC | 5 mi | 2,151 ft | April 24 | May 11 | October 18 | – |
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 Enka
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) | May 12 | May 2 | April 26 | April 11 | October 15 | October 4 |
| 32°F | April 27 | April 17 | April 12 | March 29 | October 23 | October 12 |
| 28°F (hard freeze) | April 14 | April 5 | March 31 | March 16 | November 1 | October 20 |
| 24°F | April 2 | March 26 | March 20 | March 2 | November 12 | October 31 |
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.