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 93535
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 93535 in zone 8b (the coldest night of a typical year: 15 to 20°F).
The nearest station, Palmdale, CA, is 12 miles from the ZIP's center: its last spring frost comes after March 18 in half of years and after April 11 in one year in ten. By the USDA's method its plant hardiness zone is 8b.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Palmdale, CAPalmdale Airport | 12 mi | 2,524 ft | March 18 | April 11 | November 15 | 8b |
| Pearblossom, CA | 14 mi | 3,101 ft | March 13 | April 17 | December 1 | 9a |
| Palmdale station, CA | 14 mi | 2,612 ft | March 10 | April 11 | November 19 | – |
| El Mirage, CA | 17 mi | 2,950 ft | March 21 | April 22 | November 12 | – |
| Lancaster, CA | 19 mi | 2,338 ft | April 3 | April 23 | November 1 | 8a |
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 Palmdale
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) | April 27 | April 15 | April 7 | March 16 | November 4 | October 20 |
| 32°F | April 11 | March 29 | March 18 | February 19 | November 15 | October 30 |
| 28°F (hard freeze) | March 21 | March 2 | February 19 | January 21 | November 27 | November 9 |
| 24°F | February 24 | February 6 | January 25 | December 24 | December 10 | November 22 |
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.