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 26506
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 26506 in zone 6b (the coldest night of a typical year: -5 to 0°F).
The nearest station, Morgantown Lock and Dam, WV, is 2 miles from the ZIP's center: its last spring frost comes after April 26 in half of years and after May 12 in one year in ten. By the USDA's method its plant hardiness zone is 7a.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Morgantown Lock and Dam, WV | 2 mi | 825 ft | April 26 | May 12 | October 23 | 7a |
| Morgantown, WVMorgantown Municipal Airport | 3 mi | 1,240 ft | April 23 | May 14 | October 24 | 7a |
| Point Marion, PAPoint Marion Lock 8 | 6 mi | 810 ft | April 30 | May 17 | October 23 | – |
| Lake Lynn, WV | 8 mi | 900 ft | April 25 | May 13 | October 24 | – |
| Grays Landing, PA | 10 mi | 800 ft | April 28 | May 14 | October 21 | 6b |
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 Morgantown Lock and Dam
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 13 | May 6 | April 22 | October 13 | September 29 |
| 32°F | May 12 | May 2 | April 26 | April 10 | October 23 | October 9 |
| 28°F (hard freeze) | April 30 | April 20 | April 14 | March 30 | November 1 | October 19 |
| 24°F | April 16 | April 7 | April 2 | March 19 | November 11 | November 1 |
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.