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 92282
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 92282 in zone 9b (the coldest night of a typical year: 25 to 30°F).
The nearest station, Morongo Valley, CA, is 10 miles from the ZIP's center: its last spring frost comes after February 25 in half of years and after April 3 in one year in ten.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Morongo Valley, CAMorongo Valley N | 10 mi | 3,145 ft | February 25 | April 3 | December 15 | – |
| Palm Springs station, CA | 13 mi | 425 ft | January 1 | January 18 | December 31 | – |
| Palm Springs, CAPalm Springs Asos | 13 mi | 421 ft | January 9 | January 29 | January 9 | 10a |
| Idyllwild Fire Dept, CA | 14 mi | 5,380 ft | May 16 | June 5 | October 24 | 8a |
| Yucca Valley, CA | 19 mi | 3,249 ft | March 14 | April 1 | November 28 | – |
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 Morongo Valley
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 29 | April 12 | March 31 | February 20 | December 1 | November 7 |
| 32°F | April 3 | March 11 | February 25 | January 7 | December 15 | November 23 |
| 28°F (hard freeze) | February 28 | February 14 | January 25 | December 20 | January 6 | December 8 |
| 24°F | January 31 | January 22 | January 14 | January 3 | January 13 | January 2 |
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.