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 08105
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 08105 in zone 7b (the coldest night of a typical year: 5 to 10°F).
The nearest station, Pennsauken (1 mi N), NJ, is 4 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. By the USDA's method its plant hardiness zone is 7b.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Pennsauken (1 mi N), NJ | 4 mi | 46 ft | April 15 | May 1 | October 31 | 7b |
| Phila Franklin Inst, PA | 4 mi | 60 ft | March 30 | April 12 | November 17 | 7b |
| Moorestown-Lenola, NJMoorestown | 7 mi | 45 ft | April 12 | May 3 | November 1 | 7b |
| Philadelphia, PAPhiladelphia International Airport | 9 mi | 10 ft | April 2 | April 13 | November 10 | 7b |
| Philadelphia NE Airport, PA | 10 mi | 100 ft | April 4 | April 17 | November 7 | 7b |
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 Pennsauken (1 mi N)
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 15 | May 4 | April 27 | April 14 | October 19 | October 6 |
| 32°F | May 1 | April 20 | April 15 | April 1 | October 31 | October 16 |
| 28°F (hard freeze) | April 14 | April 6 | April 1 | March 17 | November 10 | October 31 |
| 24°F | April 2 | March 25 | March 19 | March 2 | November 21 | November 7 |
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.