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 25901
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 25901 in zone 6b (the coldest night of a typical year: -5 to 0°F).
The nearest station, Oak Hill, WV, is 3 miles from the ZIP's center: its last spring frost comes after April 21 in half of years and after May 13 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Oak Hill, WV | 3 mi | 2,040 ft | April 21 | May 13 | October 19 | – |
| Beckley, WVBeckley Raleigh County Airport | 11 mi | 2,514 ft | April 22 | May 13 | October 21 | 6b |
| Anstead Hawks Nest State Park, WV | 13 mi | 1,296 ft | April 22 | May 9 | October 22 | 7a |
| Beckley Va Hospital, WV | 13 mi | 2,330 ft | May 6 | May 23 | October 10 | 6a |
| Mount Nebo (1 mi S), WV | 22 mi | 1,953 ft | May 5 | May 24 | October 7 | – |
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 Oak Hill
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 24 | May 12 | May 4 | April 18 | October 11 | September 28 |
| 32°F | May 13 | April 30 | April 21 | April 5 | October 19 | October 6 |
| 28°F (hard freeze) | April 28 | April 14 | April 6 | March 24 | October 30 | October 17 |
| 24°F | April 10 | April 1 | March 28 | March 11 | November 10 | October 26 |
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.