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 96063
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 96063 in zone 7b (the coldest night of a typical year: 5 to 10°F).
The nearest station, Mineral, CA, is 2 miles from the ZIP's center: its last spring frost comes after June 10 in half of years and after June 28 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Mineral, CA | 2 mi | 4,875 ft | June 10 | June 28 | September 13 | – |
| Manzanita Lake, CA | 12 mi | 5,750 ft | June 9 | June 27 | September 21 | – |
| Chester, CA | 20 mi | 4,530 ft | May 28 | June 13 | September 28 | 7a |
| Canyon Dam, CA | 31 mi | 4,560 ft | May 18 | June 9 | October 8 | 7b |
| De Sabla, CA | 34 mi | 2,710 ft | April 17 | May 11 | November 11 | 9a |
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 Mineral
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% |
|---|---|---|---|---|---|---|
| 32°F | June 28 | June 17 | June 10 | May 24 | September 13 | August 22 |
| 28°F (hard freeze) | June 9 | May 30 | May 19 | April 29 | October 7 | September 14 |
| 24°F | May 20 | May 4 | April 26 | April 8 | October 31 | October 9 |
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.