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 13502
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 13502 in zone 5b (the coldest night of a typical year: -15 to -10°F).
The nearest station, Trenton Falls, NY, is 9 miles from the ZIP's center: its last spring frost comes after May 4 in half of years and after May 23 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Trenton Falls, NY | 9 mi | 800 ft | May 4 | May 23 | October 13 | – |
| Utica, NYUtica Oneida County Airport | 12 mi | 711 ft | May 1 | May 17 | October 13 | 5b |
| Rome, NYRome Griffiss Airfield | 14 mi | 519 ft | May 6 | May 20 | October 13 | – |
| Little Falls, NYLittle Falls City Research | 15 mi | 893 ft | May 5 | May 20 | October 4 | – |
| Boonville, NY4 mi SSW | 23 mi | 1,550 ft | May 10 | May 28 | October 4 | 5a |
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 Trenton Falls
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 31 | May 24 | May 17 | May 1 | October 1 | September 18 |
| 32°F | May 23 | May 11 | May 4 | April 20 | October 13 | September 29 |
| 28°F (hard freeze) | May 8 | April 28 | April 21 | April 5 | October 28 | October 10 |
| 24°F | April 20 | April 13 | April 7 | March 29 | November 6 | 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.