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 07501
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 07501 in zone 7a (the coldest night of a typical year: 0 to 5°F).
The nearest station, Little Falls, NJ, is 3 miles from the ZIP's center: its last spring frost comes after April 15 in half of years and after May 1 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Little Falls, NJ | 3 mi | 150 ft | April 15 | May 1 | October 28 | – |
| Caldwell, NJCaldwell Essex County Airport | 6 mi | 173 ft | April 14 | April 30 | October 28 | 7a |
| Teterboro, NJTeterboro Airport | 7 mi | 9 ft | April 3 | April 16 | November 4 | 7b |
| Essex Fells, NJEssex Fells Service Bldg | 8 mi | 350 ft | April 18 | May 7 | October 24 | – |
| Wanaque, NJWanaque Raymond Dam | 11 mi | 245 ft | April 19 | May 3 | October 23 | – |
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 Little 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 12 | May 3 | April 27 | April 13 | October 17 | October 4 |
| 32°F | May 1 | April 20 | April 15 | April 1 | October 28 | October 13 |
| 28°F (hard freeze) | April 16 | April 6 | April 2 | March 18 | November 7 | October 24 |
| 24°F | April 3 | March 28 | March 21 | March 5 | November 20 | November 4 |
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.