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 76501
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 76501 in zone 9a (the coldest night of a typical year: 20 to 25°F).
The nearest station, Stillhouse Hollow Dam, TX, is 17 miles from the ZIP's center: its last spring frost comes after March 14 in half of years and after April 4 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Stillhouse Hollow Dam, TX | 17 mi | 706 ft | March 14 | April 4 | November 20 | – |
| Cameron, TX | 23 mi | 364 ft | March 6 | March 27 | November 23 | 9a |
| Granger, TXGranger Dam | 25 mi | 555 ft | March 5 | March 31 | November 22 | – |
| Killeen, TX | 26 mi | 815 ft | March 14 | April 4 | November 17 | – |
| McGregor, TX | 26 mi | 723 ft | March 15 | April 4 | November 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 Stillhouse Hollow 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) | April 19 | April 4 | March 27 | March 7 | November 8 | October 21 |
| 32°F | April 4 | March 22 | March 14 | February 22 | November 20 | October 29 |
| 28°F (hard freeze) | March 21 | March 9 | March 1 | January 31 | December 1 | November 10 |
| 24°F | March 10 | February 25 | February 12 | January 9 | December 21 | November 23 |
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.