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 75090
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 75090 in zone 8a (the coldest night of a typical year: 10 to 15°F).
The nearest station, Sherman, TX, is 9 miles from the ZIP's center: its last spring frost comes after March 14 in half of years and after April 1 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 |
|---|---|---|---|---|---|---|
| Sherman, TX | 9 mi | 760 ft | March 14 | April 1 | November 19 | 8a |
| Bonham, TX3 mi NNE | 22 mi | 592 ft | March 16 | April 4 | November 13 | 8a |
| Durant 6 mi SSE Mesonet, OK | 26 mi | 646 ft | March 19 | April 7 | November 12 | – |
| McKinney Municipal Airport, TX | 29 mi | 586 ft | March 17 | April 5 | November 15 | – |
| Durant, OK | 29 mi | 600 ft | March 31 | April 19 | November 5 | – |
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 Sherman
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 15 | April 4 | March 28 | March 8 | November 9 | October 26 |
| 32°F | April 1 | March 22 | March 14 | February 25 | November 19 | November 2 |
| 28°F (hard freeze) | March 21 | March 10 | March 2 | February 10 | November 30 | November 11 |
| 24°F | March 13 | March 1 | February 20 | January 22 | December 14 | 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.