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 13203
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 13203 in zone 6a (the coldest night of a typical year: -10 to -5°F).
The nearest station, Syracuse, NY, is 4 miles from the ZIP's center: its last spring frost comes after April 29 in half of years and after May 13 in one year in ten. By the USDA's method its plant hardiness zone is 6a.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Syracuse, NYSyracuse Hancock International Airport | 4 mi | 413 ft | April 29 | May 13 | October 19 | 6a |
| Brewerton, NYBrewerton Lock 23 | 13 mi | 377 ft | May 4 | May 19 | October 11 | – |
| Tully, NYTully Heiberg Forest | 21 mi | 1,899 ft | May 12 | May 28 | October 5 | – |
| Fulton station, NY | 21 mi | 360 ft | April 27 | May 9 | October 24 | – |
| Auburn, NY | 23 mi | 770 ft | May 2 | May 18 | October 18 | 6a |
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 Syracuse
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 23 | May 15 | May 8 | April 26 | October 5 | September 24 |
| 32°F | May 13 | May 5 | April 29 | April 16 | October 19 | October 2 |
| 28°F (hard freeze) | April 30 | April 21 | April 16 | April 4 | November 2 | October 16 |
| 24°F | April 17 | April 9 | April 4 | March 23 | November 14 | 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.