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 96001
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 96001 in zone 9b (the coldest night of a typical year: 25 to 30°F).
The nearest station, Whiskeytown Reservoir, CA, is 5 miles from the ZIP's center: its last spring frost comes after February 13 in half of years and after March 25 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Whiskeytown Reservoir, CA | 5 mi | 1,295 ft | February 13 | March 25 | December 13 | – |
| Redding, CARedding Airport | 9 mi | 497 ft | March 3 | April 9 | November 21 | 9a |
| Redding (12 mi WNW), CA | 9 mi | 1,418 ft | March 19 | April 11 | November 22 | – |
| Shasta, CAShasta Dam | 10 mi | 1,075 ft | February 8 | March 28 | December 28 | 9b |
| Trinity River Hatchery, CA | 21 mi | 1,861 ft | April 23 | May 11 | October 22 | 8b |
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 Whiskeytown Reservoir
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 20 | April 6 | March 27 | February 18 | November 26 | November 6 |
| 32°F | March 25 | February 28 | February 13 | December 30 | December 13 | November 20 |
| 28°F (hard freeze) | February 18 | January 25 | January 3 | December 7 | December 25 | November 30 |
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.