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 02724
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 02724 in zone 7a (the coldest night of a typical year: 0 to 5°F).
The nearest station, Tiverton, RI, is 4 miles from the ZIP's center: its last spring frost comes after April 11 in half of years and after April 22 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 |
|---|---|---|---|---|---|---|
| Tiverton, RI | 4 mi | 90 ft | April 11 | April 22 | November 2 | 7a |
| New Bedford, MANew Bedford Municipal Airport | 11 mi | 80 ft | April 29 | May 15 | October 15 | 7a |
| Newport, RINewport State Airport | 12 mi | 172 ft | April 11 | April 24 | November 4 | 7a |
| Providence, RIRhode Island T.f. Green International Airport | 13 mi | 60 ft | April 11 | April 23 | October 30 | 7a |
| Rochester, MA | 15 mi | 65 ft | April 23 | May 7 | October 21 | 7a |
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 Tiverton
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 7 | May 1 | April 26 | April 15 | October 21 | October 8 |
| 32°F | April 22 | April 16 | April 11 | April 1 | November 2 | October 20 |
| 28°F (hard freeze) | April 11 | April 5 | March 31 | March 19 | November 13 | November 2 |
| 24°F | April 3 | March 27 | March 21 | March 7 | November 25 | November 10 |
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.